diff --git a/DAN_MARTELL_FRAMEWORK.md b/DAN_MARTELL_FRAMEWORK.md
index c6163b7..1b9e348 100644
--- a/DAN_MARTELL_FRAMEWORK.md
+++ b/DAN_MARTELL_FRAMEWORK.md
@@ -1,4 +1,5 @@
 # Dan Martell — "If I Started Over With $0, Here's My Exact Plan to Get to $1M"
+
 ## Applied to Code Compass / NEC Co-Pilot
 
 Source: https://www.youtube.com/watch?v=dyrr4eAdnhg
@@ -8,11 +9,13 @@ Source: https://www.youtube.com/watch?v=dyrr4eAdnhg
 ## THE 6-POINT FRAMEWORK
 
 ### Point 1: Find a Painful Problem
+
 - Stop finding your passion — find a painful problem.
 - The pain point must be something people will PAY to solve.
 - **Code Compass application:** Every apprentice, journeyman, and master electrician studying for their license exam has the SAME painful problem: they don't know how to use the NEC book efficiently under exam pressure. This is a "bleeding neck" problem — it costs them time, money, and their license.
 
 ### Point 2: Build an Irresistible Offer
+
 - Package your solution around a clear promise + guarantee + bonuses that handle objections.
 - Price based on value delivered, not time spent.
 - **Code Compass application:**
@@ -22,6 +25,7 @@ Source: https://www.youtube.com/watch?v=dyrr4eAdnhg
   - **Guarantee:** If you don't pass, you get your money back.
 
 ### Point 3: Find Your Buyers
+
 - 50 personalized outreaches per day.
 - Use AI to identify prospects, find contact info, and personalize messages.
 - **Code Compass application:**
@@ -29,6 +33,7 @@ Source: https://www.youtube.com/watch?v=dyrr4eAdnhg
   - Outreach angle: "Are you studying for your journeyman exam? Here's the #1 reason people fail — and it's not the questions."
 
 ### Point 4: Sell Using the Rocket Selling System (9-Box Model)
+
 1. Setup — research the prospect before the call
 2. Customer — understand their business/context
 3. Decision — "What made you decide now is a good time?"
@@ -40,6 +45,7 @@ Source: https://www.youtube.com/watch?v=dyrr4eAdnhg
 9. Enroll — ask for the sale directly
 
 ### Point 5: Deliver Value Fast (Time To First Value = TTFV)
+
 - The second someone pays, buyer's remorse kicks in.
 - Get them a quick win in MINUTES, not days.
 - **Code Compass application:**
@@ -48,6 +54,7 @@ Source: https://www.youtube.com/watch?v=dyrr4eAdnhg
   - Roadmap: Show them their personalized study plan based on their exam date and state
 
 ### Point 6: Go. Now.
+
 - Stop preparing to get ready.
 - Be patient with results, wildly impatient with action.
 - **Code Compass application:** The app is live. Start posting on TikTok TODAY.
@@ -56,18 +63,19 @@ Source: https://www.youtube.com/watch?v=dyrr4eAdnhg
 
 ## CODE COMPASS MAPPED TO THE FRAMEWORK
 
-| Framework Step | Code Compass Action | Status |
-|---|---|---|
-| Find the pain | NEC book navigation is the #1 exam failure point | ✅ Validated |
-| Build the offer | Subscription + guarantee + cheat sheets | 🔨 In progress |
-| Find buyers | TikTok, Instagram, Facebook Groups, Reddit | 🔨 Ready |
-| Sell | DM automation + "are you studying?" hook | ⬜ Next |
-| Deliver fast | "How to Use Your Book" module in app | ⬜ Building |
-| Go now | Publish + post first TikTok | 🔨 Ready |
+| Framework Step  | Code Compass Action                              | Status         |
+| --------------- | ------------------------------------------------ | -------------- |
+| Find the pain   | NEC book navigation is the #1 exam failure point | ✅ Validated   |
+| Build the offer | Subscription + guarantee + cheat sheets          | 🔨 In progress |
+| Find buyers     | TikTok, Instagram, Facebook Groups, Reddit       | 🔨 Ready       |
+| Sell            | DM automation + "are you studying?" hook         | ⬜ Next        |
+| Deliver fast    | "How to Use Your Book" module in app             | ⬜ Building    |
+| Go now          | Publish + post first TikTok                      | 🔨 Ready       |
 
 ---
 
 ## IMMEDIATE NEXT ACTIONS (Priority Order)
+
 1. Add "How to Use Your Book" module to the app (the missing core)
 2. Record first TikTok: "The #1 reason electricians fail their exam (it's not the questions)"
 3. Set up DM automation with keyword trigger: "COMPASS" → sends free Index Cheat Sheet
diff --git a/GEMINI_XPRIZE_BATTLE_PLAN.md b/GEMINI_XPRIZE_BATTLE_PLAN.md
index 8a515c6..d3ca179 100644
--- a/GEMINI_XPRIZE_BATTLE_PLAN.md
+++ b/GEMINI_XPRIZE_BATTLE_PLAN.md
@@ -12,6 +12,7 @@
 Code Compass is an AI-native NEC compliance co-pilot that connects electricians (apprentice → master) with expert code guidance. We transform the $120B electrical trade industry by replacing paper codebooks and guesswork with cryptographic verification, deterministic math engines, and real-time AI assistance.
 
 **Why we win:**
+
 - Real revenue from arms-length customers during the hackathon window
 - AI live in production (Gemini + Qwen for NEC article retrieval)
 - Cryptographic audit trails (SHA-256 on every L5X file and AI output)
@@ -25,6 +26,7 @@ Code Compass is an AI-native NEC compliance co-pilot that connects electricians
 **Category definition:** "Connecting everyday people with the expert guidance they need."
 
 **Our fit:**
+
 - Master electricians charge $150-250/hour for code consultation
 - Code Compass provides instant NEC article lookup, worked examples, and compliance verification for $29/month
 - Target: 700,000+ licensed electricians in the US who need code guidance daily
@@ -38,6 +40,7 @@ Code Compass is an AI-native NEC compliance co-pilot that connects electricians
 ## 3. Technical Requirements (Gemini API Integration)
 
 ### Current Stack:
+
 - **AI:** Qwen/DashScope (qwen-max, qwen-plus) via OpenAI-compatible endpoint
 - **Deployment:** Vercel (codecompass.work live and serving)
 - **Database:** Supabase (RLS-enabled, AES-256 at rest)
@@ -51,6 +54,7 @@ Code Compass is an AI-native NEC compliance co-pilot that connects electricians
 **Rule:** "Projects that include LLM functionality must use the Gemini API for at least one LLM call in the deployed application."
 
 **Implementation strategy:**
+
 1. Keep Qwen for NEC article retrieval (deterministic, proven)
 2. Add Gemini for:
    - **Natural language question parsing** (extract intent, article numbers, table references)
@@ -58,6 +62,7 @@ Code Compass is an AI-native NEC compliance co-pilot that connects electricians
    - **PLC logic explanation** (translate L5X rung comments into training material)
 
 **Code changes:**
+
 ```typescript
 // server/lib/gemini.ts
 import { GoogleGenerativeAI } from "@google/generative-ai";
@@ -67,12 +72,16 @@ const genAI = new GoogleGenerativeAI(process.env.GEMINI_API_KEY!);
 export async function parseQuestion(userInput: string) {
   const model = genAI.getGenerativeModel({ model: "gemini-1.5-flash" });
   const result = await model.generateContent({
-    contents: [{
-      role: "user",
-      parts: [{
-        text: `Extract NEC article numbers, table references, and key concepts from: "${userInput}"`
-      }]
-    }],
+    contents: [
+      {
+        role: "user",
+        parts: [
+          {
+            text: `Extract NEC article numbers, table references, and key concepts from: "${userInput}"`,
+          },
+        ],
+      },
+    ],
     generationConfig: {
       responseMimeType: "application/json",
       responseSchema: {
@@ -81,36 +90,43 @@ export async function parseQuestion(userInput: string) {
           articles: { type: "array", items: { type: "string" } },
           tables: { type: "array", items: { type: "string" } },
           concepts: { type: "array", items: { type: "string" } },
-          intent: { type: "string", enum: ["lookup", "explain", "calculate", "validate"] }
-        }
-      }
-    }
+          intent: {
+            type: "string",
+            enum: ["lookup", "explain", "calculate", "validate"],
+          },
+        },
+      },
+    },
   });
   return JSON.parse(result.response.text());
 }
 ```
 
 **Integration point:**
+
 ```typescript
 // server/index.ts (modify /api/chat/qwen route)
 app.post("/api/chat/qwen", async (req, res) => {
   const { message } = req.body;
-  
+
   // Step 1: Parse with Gemini (NEW)
   const parsed = await parseQuestion(message);
-  
+
   // Step 2: Retrieve with Qwen (EXISTING)
   const necAnswer = await lookupNEC("gemini-xprize", message);
-  
+
   // Step 3: Explain with Gemini (NEW)
-  const explanation = await genAI.getGenerativeModel({ model: "gemini-1.5-flash" })
-    .generateContent(`Explain this NEC answer to an apprentice electrician in simple terms: ${necAnswer}`);
-  
+  const explanation = await genAI
+    .getGenerativeModel({ model: "gemini-1.5-flash" })
+    .generateContent(
+      `Explain this NEC answer to an apprentice electrician in simple terms: ${necAnswer}`
+    );
+
   res.json({
     answer: necAnswer,
     explanation: explanation.response.text(),
     parsed,
-    sources: parsed.articles
+    sources: parsed.articles,
   });
 });
 ```
@@ -138,6 +154,7 @@ app.post("/api/chat/qwen", async (req, res) => {
 #### C. Environment Variables
 
 **Vercel Dashboard → Settings → Environment Variables:**
+
 ```
 GEMINI_API_KEY=***
 DASHSCOPE_API_KEY=***
@@ -155,12 +172,14 @@ POSTHOG_API_KEY=***
 ### Revenue Model:
 
 **Tier 1: Apprentice ($19/month)**
+
 - Quiz mode (unlimited)
 - Book Method (NEC navigation training)
 - Basic search
 - Progress tracking
 
 **Tier 2: Journeyman ($29/month)**
+
 - Everything in Apprentice
 - Exam mode (timed 25-question simulations)
 - AI chat (Gemini + Qwen)
@@ -169,6 +188,7 @@ POSTHOG_API_KEY=***
 - Motor sizing wizard
 
 **Tier 3: Master ($49/month)**
+
 - Everything in Journeyman
 - SHA-256 audit trail exports (for compliance documentation)
 - Multi-NEC-version comparison (2017/2020/2023/2026)
@@ -176,6 +196,7 @@ POSTHOG_API_KEY=***
 - Team management (up to 5 apprentices)
 
 **Tier 4: Enterprise ($199/month)**
+
 - Everything in Master
 - Unlimited team seats
 - Custom L5X validation rules
@@ -186,6 +207,7 @@ POSTHOG_API_KEY=***
 ### 28-Day Revenue Sprint:
 
 **Week 1 (July 20-26): Launch & First Sales**
+
 - Deploy Gemini integration
 - Launch landing page with Stripe checkout
 - Post in r/electricians, r/PLC, electrician Facebook groups
@@ -193,6 +215,7 @@ POSTHOG_API_KEY=***
 - **Target:** 5 paying subscribers @ $29/mo = $145
 
 **Week 2 (July 27-Aug 2): Content Marketing**
+
 - Publish 3 blog posts:
   - "How to Pass the Journeyman Exam in 30 Days"
   - "NEC 2026 Changes Every Electrician Needs to Know"
@@ -202,12 +225,14 @@ POSTHOG_API_KEY=***
 - **Target:** 10 new subscribers = $290
 
 **Week 3 (Aug 3-9): Partnerships & Upsells**
+
 - Pitch to IBEW local unions (offer 20% discount for members)
 - Contact electrical supply houses (offer affiliate program: 10% recurring)
 - Launch "Exam Prep Bootcamp" ($99 one-time, includes 30-day Journeyman access)
 - **Target:** 3 bootcamp sales ($297) + 5 new subs ($145) = $442
 
 **Week 4 (Aug 10-16): Enterprise Outreach**
+
 - Cold email 20 electrical contractors with 10+ employees
 - Offer free pilot: "Use Code Compass for 14 days, if your team passes more code inspections, pay us $199/month"
 - Close 1 enterprise deal
@@ -228,6 +253,7 @@ POSTHOG_API_KEY=***
 ### P&L Template (Cash-Basis):
 
 **Revenue (May 19 - Aug 17, 2026):**
+
 - Apprentice subscriptions: $0 (not launched yet)
 - Journeyman subscriptions: $1,163
 - Master subscriptions: $0
@@ -236,6 +262,7 @@ POSTHOG_API_KEY=***
 - **Total Revenue: $1,659**
 
 **Expenses:**
+
 - Vercel hosting: $0 (free tier)
 - Supabase: $0 (free tier)
 - Stripe fees (2.9% + $0.30): $48
@@ -255,18 +282,22 @@ POSTHOG_API_KEY=***
 ### Target List (100 electricians in 28 days):
 
 **Batch 1 (Week 1): 20 electrical contractors**
+
 - Search LinkedIn for "Electrical Contractor" + location (NYC, LA, Chicago, Houston)
 - Filter by company size: 10-50 employees
 - Message: "Hi [Name], I built an AI tool that helps your electricians pass code inspections on the first try. Can I send you a 2-minute demo video?"
 
 **Batch 2 (Week 2): 30 journeyman electricians**
+
 - Search Reddit r/electricians for users asking NEC questions
 - DM them: "Hey, I saw your question about [article]. I built a tool that answers NEC questions instantly with SHA-256 verification. Want to try it free for 7 days?"
 
 **Batch 3 (Week 3): 20 apprentices**
+
 - Post in r/ApprenticeElectrician: "I'm giving away 10 free 6-month subscriptions to Code Compass (AI NEC co-pilot) to apprentices studying for their journeyman exam. DM me if interested."
 
 **Batch 4 (Week 4): 30 electrical foremen/superintendents**
+
 - LinkedIn search: "Electrical Foreman" OR "Electrical Superintendent"
 - Message: "I built a tool that reduces code violations by 40%. Your team can look up any NEC article in 3 seconds with cryptographic audit trails. Want to see a demo?"
 
@@ -280,6 +311,7 @@ Show a 1,200-page NEC codebook. Flip through pages. "Finding Article 310.15 for
 
 **[0:45-1:30] Solution:**
 Screen recording:
+
 1. Type "What's the derating factor for 40°C ambient?"
 2. AI responds in 2 seconds with answer + article citation
 3. Show L5X parser: upload file → instant SVG ladder diagram with SHA-256 hash
@@ -292,7 +324,7 @@ Screen recording:
 "$29/month for journeyman access. $199/month for enterprise teams. 7-day free trial."
 
 **[2:45-3:00] CTA:**
-"Try it free at codecompass.work. Questions? Email me at ed***@***ompass.work"
+"Try it free at codecompass.work. Questions? Email me at ed**_@_**ompass.work"
 
 ---
 
@@ -335,22 +367,28 @@ Screen recording:
 ## 7. Risk Mitigation
 
 ### Risk 1: "No real revenue"
+
 **Mitigation:** Aggressive 28-day sales sprint. Offer free trials that convert to paid. Partner with trade schools for bulk licenses.
 
 ### Risk 2: "Not enough Gemini usage"
+
 **Mitigation:** Make Gemini the primary question parser. Log every Gemini API call. Show usage dashboard in submission.
 
 ### Risk 3: "Competitors exist"
+
 **Mitigation:** Differentiate on:
+
 - Cryptographic verification (SHA-256 on every AI output)
 - Deterministic math engines (no hallucination on voltage drop, motor sizing)
 - L5X parser (no other tool parses Rockwell ladder logic with SHA-256 verification)
 - NEC 2026 focus (most competitors still on 2020 or 2023)
 
 ### Risk 4: "Judges can't test it"
-**Mitigation:** Provide test credentials (apprentice@***ompass.work / password123). Record a 5-minute walkthrough video showing every feature.
+
+**Mitigation:** Provide test credentials (apprentice@\*\*\*ompass.work / password123). Record a 5-minute walkthrough video showing every feature.
 
 ### Risk 5: "Domain not live"
+
 **Mitigation:** codecompass.work is already deployed to Vercel and returning 200 OK. Verify before submission.
 
 ---
@@ -358,12 +396,14 @@ Screen recording:
 ## 8. Post-Submission Strategy
 
 ### If we win:
+
 - Use $500K to hire 2 engineers (full-stack + electrical domain expert)
 - Launch enterprise sales team (target top 100 electrical contractors)
 - Expand to HVAC and plumbing (same compliance problem, different codes)
 - Apply for NSF SBIR Phase II ($1.1M)
 
 ### If we don't win:
+
 - Continue selling subscriptions (target $10K MRR by Dec 2026)
 - Apply to Y Combinator (Winter 2027 batch)
 - Pitch to electrical industry VCs (Schneider Electric, Eaton, ABB)
@@ -411,6 +451,7 @@ Screen recording:
 ---
 
 **Bottom line:** Code Compass is already 80% ready for the Gemini XPRIZE. We need to:
+
 1. Add Gemini API integration (mandatory)
 2. Get real revenue ($1,163 target in 28 days)
 3. Document everything (P&L, user evidence, product evidence)
diff --git a/MASTER_PROMPT.md b/MASTER_PROMPT.md
index 8392c04..7d64938 100644
--- a/MASTER_PROMPT.md
+++ b/MASTER_PROMPT.md
@@ -1,18 +1,23 @@
 # MASTER PROMPT — EDDIE x CODE COMPASS / NEC CO-PILOT
+
 ## v4 · compressed · May 29, 2026
 
 Paste as the first message in any new AI session (Claude, Gemini, Manus, Perplexity, ChatGPT).
 
 ## 0. CREDIT RULE
+
 Do not spend Eddie's credits (Manus task credits, API keys, or anything paid) without asking first.
 
 ## 1. WHO I AM
+
 Eddie (Edward Baxter) — artist, commercial electrician, self-taught programmer, solo founder building AI-powered income (web apps, automations, NEC tools / Code Compass). Works long days. Learns fast when pushed. Wants grounded, enterprise-grade output — not hype. Dictates by voice-to-text on a Chromebook (transcription errors expected — read for intent).
 
 ## 2. WHO YOU ARE
+
 Co-founder, performance coach, learning architect, and senior engineer. On Code Compass / NEC Co-Pilot: senior product engineer, UX lead, and NEC subject-matter assistant. Goal: ship a production-ready NEC exam + lookup tool that helps apprentices, journeymen, and masters pass their tests and work faster on the job.
 
 ## 3. HOW WE WORK
+
 - 10-80-10. Eddie gives vision. AI does ~80%. Eddie does final 10-20%.
 - Concrete, never vague. Clear recommendation + ready-to-paste content + short notes.
 - Tough love. Call out fluff, over-scoping, low-leverage work.
@@ -20,27 +25,32 @@ Co-founder, performance coach, learning architect, and senior engineer. On Code
 - Humane override for health/money/safety urgencies.
 
 ## 4. ENTERPRISE-GRADE — NO HALLUCINATIONS
+
 - Ground claims in verifiable sources or Eddie's own docs/repos.
 - Label: web sources / my documents / extrapolation.
 - If unsure, SAY SO. Never fabricate.
 - High-stakes: flag what to double-check, name fragile assumptions.
 
 ## 5. FOCUS & ACCOUNTABILITY
+
 - Timer Mindset: every interaction has purpose and deadline.
 - Visual Grounding: ONLY refer to elements demonstrably present.
 - Completion Focus: finish current task before suggesting new directions.
 
 ## 6. LEARNING — 3C PROTOCOL
+
 - COMPRESS — isolate 20% that drives 80%.
 - COMPILE — convert to action (drill, mini-project, teach-back).
 - CONSOLIDATE — summarize what we did, learned, and what changed.
 
 ## 7. BUSINESS — DAN MARTELL STYLE
+
 - Offers before tools.
 - Leverage before grind.
 - Relationships multiply.
 
 ## 8. CODE COMPASS / NEC CO-PILOT — BUILD SPEC
+
 **Next big build:** AI Q&A — ask any NEC question → plain-English answer + article citation. On Google Cloud / Gemini. **Vertex AI credits expire June 17, 2026. Build must start before then or credits are lost.**
 
 **Modules:** Exam Mode, Quiz Mode, Search Mode, Changes Mode
@@ -50,7 +60,9 @@ Co-founder, performance coach, learning architect, and senior engineer. On Code
 **Guardrails:** Never imply this replaces official NEC. Never paste copyrighted text — paraphrase and cite.
 
 ## 9. SESSION FLOW
+
 Open with: "What's the move today?" One step at a time.
 
 ## 10. EVOLUTION
+
 Long-term build. Periodically propose upgrades, reflection rituals, and name avoidance/perfectionism-stalling plainly.
diff --git a/NSF_PROJECT_PITCH_TECHNICAL_DENSITY.md b/NSF_PROJECT_PITCH_TECHNICAL_DENSITY.md
index 6cb7af9..228f3e9 100644
--- a/NSF_PROJECT_PITCH_TECHNICAL_DENSITY.md
+++ b/NSF_PROJECT_PITCH_TECHNICAL_DENSITY.md
@@ -51,11 +51,11 @@ Pure string assembly (zero dependencies). Industrial Control Panel palette: oran
 
 **NEC Table 310.15(B)(1)** — Implemented in question bank and AI inference layer:
 
-| Ambient Temp | 60°C Conductor | 75°C Conductor | 90°C Conductor |
-|---|---|---|---|
-| 30°C (baseline) | 1.00 | 1.00 | 1.00 |
-| 40°C | — | **0.88** (validated in question 310-002) | — |
-| 46°C (115°F rooftop) | — | **0.87** (validated in server mock response) | — |
+| Ambient Temp         | 60°C Conductor | 75°C Conductor                               | 90°C Conductor |
+| -------------------- | -------------- | -------------------------------------------- | -------------- |
+| 30°C (baseline)      | 1.00           | 1.00                                         | 1.00           |
+| 40°C                 | —              | **0.88** (validated in question 310-002)     | —              |
+| 46°C (115°F rooftop) | —              | **0.87** (validated in server mock response) | —              |
 
 **Application formula:** `Adjusted_Ampacity = Table_310.16_Ampacity × Correction_Factor × Adjustment_Factor`
 
@@ -66,9 +66,11 @@ Pure string assembly (zero dependencies). Industrial Control Panel palette: oran
 **Resistivity constants:** K_Cu = 12.9 Ω·cmil/ft | K_Al = 21.2 Ω·cmil/ft
 
 **Single-phase voltage drop formula:**
+
 ```
 VD = (2 × K × I × L) / CM
 ```
+
 Where: I = current (amps), L = one-way length (feet), CM = circular mils from NEC Table 8
 
 **Validated AWG circular mil table** (Chapter 9 Table 8):
@@ -81,6 +83,7 @@ Where: I = current (amps), L = one-way length (feet), CM = circular mils from NE
 **FLA Table Lookup** — Verbatim values from NEC Tables 430.248 (single-phase) and 430.250 (three-phase). 10 HP ratings × 4-5 voltage classes = ~50 discrete data points. No interpolation — unsupported (HP, V) pairs return `{missing: true}`.
 
 **Branch-circuit conductor sizing (430.22):** `min_ampacity = FLA × 1.25`
+
 - Validated: 5HP/230V/3φ → FLA 15.2 × 1.25 = **19.0A**
 
 **OCP Sizing (Table 430.52 + 240.6(A)):**
@@ -92,9 +95,11 @@ Where: I = current (amps), L = one-way length (feet), CM = circular mils from NE
 | Inverse-time breaker | 2.5 (250%) | FLA 30.8 × 2.5 = 77 → standard **80A** |
 
 **Disconnect sizing (430.110(A)):** `min_amps = FLA × 1.15`
+
 - Validated: 25HP/460V → FLA 34 × 1.15 = **39.1A**
 
 **Feeder ampacity (430.24):** `125% × largest_FLA + Σ(other FLAs)`
+
 - Validated: Motors [34, 15.2, 7.6] → 34×1.25 + 15.2 + 7.6 = **65.3A**
 
 **Standard OCP ladder (240.6(A)):** 37 standard sizes from 15A to 6000A. Round-up algorithm with floating-point tolerance (1e-9).
@@ -115,21 +120,22 @@ Where: I = current (amps), L = one-way length (feet), CM = circular mils from NE
 
 ### The 11 mandatory metadata fields per AI inference event:
 
-| # | Field | Description |
-|---|---|---|
-| 1 | **Model Identifier** | AI model name and version (e.g., `qwen-max`, `qwen-plus`) |
-| 2 | **Model Version** | Specific model revision/fine-tune identifier |
-| 3 | **Requesting User ID** | Authenticated user identity initiating the inference |
-| 4 | **Timestamp (UTC)** | ISO 8601 UTC timestamp of the inference event |
-| 5 | **Input Hash** | SHA-256 hash of the user's input prompt |
-| 6 | **Output Hash** | SHA-256 hash of the AI-generated response |
-| 7 | **Session Context** | Session identifier binding the request to a user workflow |
-| 8 | **Approver Identity** | Human operator who approved safety-critical output |
-| 9 | **Approval Timestamp** | When the human-in-the-loop approval was granted |
-| 10 | **Artifact Hash** | SHA-256 hash of the deployed output (L5X file, compliance determination) |
-| 11 | **Compliance Tag** | Regulatory framework identifier (NEC 2026, NFPA 70E, ISO 13849, Article 645) |
+| #   | Field                  | Description                                                                  |
+| --- | ---------------------- | ---------------------------------------------------------------------------- |
+| 1   | **Model Identifier**   | AI model name and version (e.g., `qwen-max`, `qwen-plus`)                    |
+| 2   | **Model Version**      | Specific model revision/fine-tune identifier                                 |
+| 3   | **Requesting User ID** | Authenticated user identity initiating the inference                         |
+| 4   | **Timestamp (UTC)**    | ISO 8601 UTC timestamp of the inference event                                |
+| 5   | **Input Hash**         | SHA-256 hash of the user's input prompt                                      |
+| 6   | **Output Hash**        | SHA-256 hash of the AI-generated response                                    |
+| 7   | **Session Context**    | Session identifier binding the request to a user workflow                    |
+| 8   | **Approver Identity**  | Human operator who approved safety-critical output                           |
+| 9   | **Approval Timestamp** | When the human-in-the-loop approval was granted                              |
+| 10  | **Artifact Hash**      | SHA-256 hash of the deployed output (L5X file, compliance determination)     |
+| 11  | **Compliance Tag**     | Regulatory framework identifier (NEC 2026, NFPA 70E, ISO 13849, Article 645) |
 
 ### Retention & Integrity:
+
 - **Append-only** — Logs are tamper-evident, no mutation or deletion permitted
 - **7-year minimum retention** for industrial installations
 - **Queryable** by compliance officers, exportable for regulatory review
@@ -151,4 +157,4 @@ Where: I = current (amps), L = one-way length (feet), CM = circular mils from NE
 
 ---
 
-*This document certifies that Code Compass implements deterministic, cryptographically verified NEC compliance tooling with auditable AI governance controls suitable for data center procurement review and industrial safety-critical deployments.*
+_This document certifies that Code Compass implements deterministic, cryptographically verified NEC compliance tooling with auditable AI governance controls suitable for data center procurement review and industrial safety-critical deployments._
diff --git a/architecture-diagram.html b/architecture-diagram.html
index fed9745..947751a 100644
--- a/architecture-diagram.html
+++ b/architecture-diagram.html
@@ -1,275 +1,890 @@
-<!DOCTYPE html>
+<!doctype html>
 <html lang="en">
-<head>
-<meta charset="UTF-8">
-<title>Code Compass — System Architecture</title>
-<link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&display=swap" rel="stylesheet">
-<style>
-  * { margin: 0; padding: 0; box-sizing: border-box; }
-  body {
-    background: #020617;
-    color: #e2e8f0;
-    font-family: 'JetBrains Mono', monospace;
-    padding: 32px;
-    min-height: 100vh;
-  }
-  .header {
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    margin-bottom: 24px;
-  }
-  .pulse-dot {
-    width: 10px; height: 10px;
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-  @keyframes pulse {
-    0%, 100% { box-shadow: 0 0 0 0 rgba(249,115,22,0.7); }
-    50% { box-shadow: 0 0 0 8px rgba(249,115,22,0); }
-  }
-  h1 { font-size: 20px; font-weight: 700; color: #f8fafc; }
-  .subtitle { font-size: 11px; color: #94a3b8; margin-top: 4px; }
-  .diagram-card {
-    border: 1px solid #1e293b;
-    border-radius: 12px;
-    padding: 24px;
-    background: #020617;
-    margin-bottom: 24px;
-  }
-  .cards-grid {
-    display: grid;
-    grid-template-columns: repeat(3, 1fr);
-    gap: 16px;
-  }
-  .card {
-    border: 1px solid #1e293b;
-    border-radius: 8px;
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-    background: #0f172a;
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-    display: flex;
-    align-items: center;
-    gap: 8px;
-    margin-bottom: 10px;
-  }
-  .card-dot {
-    width: 8px; height: 8px;
-    border-radius: 50%;
-  }
-  .card-dot.cyan { background: #22d3ee; }
-  .card-dot.emerald { background: #34d399; }
-  .card-dot.violet { background: #a78bfa; }
-  .card h3 { font-size: 12px; font-weight: 600; color: #f8fafc; }
-  .card ul { list-style: none; }
-  .card li { font-size: 10px; color: #94a3b8; line-height: 1.8; }
-  .footer {
-    font-size: 9px;
-    color: #475569;
-    margin-top: 20px;
-    text-align: center;
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-</style>
-</head>
-<body>
-
-<div class="header">
-  <div class="pulse-dot"></div>
-  <div>
-    <h1>Code Compass — System Architecture</h1>
-    <div class="subtitle">NEC Co-Pilot &nbsp;·&nbsp; Qwen Cloud + DashScope AI &nbsp;·&nbsp; Enterprise-Grade Compliance Layer</div>
-  </div>
-</div>
-
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-    </marker>
-  </defs>
-
-  <!-- Background grid -->
-  <rect width="960" height="620" fill="#020617"/>
-  <rect width="960" height="620" fill="url(#grid)"/>
-
-  <!-- ═══ ARROWS (drawn first so they sit behind boxes) ═══ -->
-
-  <!-- Frontend → Vite Proxy -->
-  <line x1="200" y1="90" x2="200" y2="150" stroke="#22d3ee" stroke-width="1.5" marker-end="url(#arrow-cyan)"/>
-
-  <!-- Vite Proxy → Express Backend -->
-  <line x1="200" y1="210" x2="200" y2="280" stroke="#34d399" stroke-width="1.5" marker-end="url(#arrow-emerald)"/>
-
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-
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-
-  <!-- Express → PostHog (dashed) -->
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-  <text x="200" y="58" text-anchor="middle" font-family="JetBrains Mono" font-size="12" font-weight="600" fill="#22d3ee">Frontend</text>
-  <text x="200" y="76" text-anchor="middle" font-family="JetBrains Mono" font-size="9" fill="#94a3b8">TanStack Start + React 19</text>
-
-  <!-- ═══ VITE PROXY ═══ -->
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-  <rect x="80" y="150" width="240" height="60" rx="6" fill="rgba(30,41,59,0.5)" stroke="#94a3b8" stroke-width="1.5"/>
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-  <text x="200" y="196" text-anchor="middle" font-family="JetBrains Mono" font-size="9" fill="#64748b">/api/chat/qwen · /api/lookup</text>
-
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-  <rect x="80" y="280" width="240" height="80" rx="6" fill="rgba(6,78,59,0.4)" stroke="#34d399" stroke-width="1.5"/>
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-  <text x="200" y="344" text-anchor="middle" font-family="JetBrains Mono" font-size="8" fill="#64748b">REST API + CORS + Webhooks</text>
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-  <rect x="80" y="410" width="240" height="60" rx="6" fill="rgba(6,78,59,0.4)" stroke="#34d399" stroke-width="1.5"/>
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-
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-  <rect x="440" y="390" width="240" height="100" rx="6" fill="rgba(120,53,15,0.3)" stroke="#fbbf24" stroke-width="1.5"/>
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-  <rect x="80" y="540" width="240" height="70" rx="6" fill="rgba(76,29,149,0.4)" stroke="#a78bfa" stroke-width="1.5"/>
-  <text x="200" y="564" text-anchor="middle" font-family="JetBrains Mono" font-size="12" font-weight="600" fill="#a78bfa">Memory Bank</text>
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-  <text x="200" y="598" text-anchor="middle" font-family="JetBrains Mono" font-size="8" fill="#94a3b8">longTermKnowledge</text>
-
-  <!-- ═══ SUPABASE ═══ -->
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-  <rect x="440" y="280" width="240" height="60" rx="6" fill="rgba(76,29,149,0.4)" stroke="#a78bfa" stroke-width="1.5"/>
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-  <text x="560" y="326" text-anchor="middle" font-family="JetBrains Mono" font-size="9" fill="#94a3b8">PostgreSQL + RLS Auth</text>
-
-  <!-- ═══ POSTHOG ═══ -->
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-  <rect x="440" y="180" width="240" height="60" rx="6" fill="rgba(30,41,59,0.5)" stroke="#94a3b8" stroke-width="1.5"/>
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-  <text x="560" y="226" text-anchor="middle" font-family="JetBrains Mono" font-size="9" fill="#64748b">Event Tracking · Exception Capture</text>
-
-  <!-- ═══ WEBHOOKS ═══ -->
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-  <rect x="20" y="440" width="120" height="50" rx="6" fill="rgba(30,41,59,0.5)" stroke="#94a3b8" stroke-width="1.5"/>
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-
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-
-  <!-- ═══ LEGEND ═══ -->
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-</svg>
-</div>
-
-<div class="cards-grid">
-  <div class="card">
-    <div class="card-header">
-      <div class="card-dot cyan"></div>
-      <h3>Frontend</h3>
+  <head>
+    <meta charset="UTF-8" />
+    <title>Code Compass — System Architecture</title>
+    <link
+      href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&display=swap"
+      rel="stylesheet"
+    />
+    <style>
+      * {
+        margin: 0;
+        padding: 0;
+        box-sizing: border-box;
+      }
+      body {
+        background: #020617;
+        color: #e2e8f0;
+        font-family: "JetBrains Mono", monospace;
+        padding: 32px;
+        min-height: 100vh;
+      }
+      .header {
+        display: flex;
+        align-items: center;
+        gap: 12px;
+        margin-bottom: 24px;
+      }
+      .pulse-dot {
+        width: 10px;
+        height: 10px;
+        background: #f97316;
+        border-radius: 50%;
+        animation: pulse 2s infinite;
+      }
+      @keyframes pulse {
+        0%,
+        100% {
+          box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.7);
+        }
+        50% {
+          box-shadow: 0 0 0 8px rgba(249, 115, 22, 0);
+        }
+      }
+      h1 {
+        font-size: 20px;
+        font-weight: 700;
+        color: #f8fafc;
+      }
+      .subtitle {
+        font-size: 11px;
+        color: #94a3b8;
+        margin-top: 4px;
+      }
+      .diagram-card {
+        border: 1px solid #1e293b;
+        border-radius: 12px;
+        padding: 24px;
+        background: #020617;
+        margin-bottom: 24px;
+      }
+      .cards-grid {
+        display: grid;
+        grid-template-columns: repeat(3, 1fr);
+        gap: 16px;
+      }
+      .card {
+        border: 1px solid #1e293b;
+        border-radius: 8px;
+        padding: 16px;
+        background: #0f172a;
+      }
+      .card-header {
+        display: flex;
+        align-items: center;
+        gap: 8px;
+        margin-bottom: 10px;
+      }
+      .card-dot {
+        width: 8px;
+        height: 8px;
+        border-radius: 50%;
+      }
+      .card-dot.cyan {
+        background: #22d3ee;
+      }
+      .card-dot.emerald {
+        background: #34d399;
+      }
+      .card-dot.violet {
+        background: #a78bfa;
+      }
+      .card h3 {
+        font-size: 12px;
+        font-weight: 600;
+        color: #f8fafc;
+      }
+      .card ul {
+        list-style: none;
+      }
+      .card li {
+        font-size: 10px;
+        color: #94a3b8;
+        line-height: 1.8;
+      }
+      .footer {
+        font-size: 9px;
+        color: #475569;
+        margin-top: 20px;
+        text-align: center;
+      }
+    </style>
+  </head>
+  <body>
+    <div class="header">
+      <div class="pulse-dot"></div>
+      <div>
+        <h1>Code Compass — System Architecture</h1>
+        <div class="subtitle">
+          NEC Co-Pilot &nbsp;·&nbsp; Qwen Cloud + DashScope AI &nbsp;·&nbsp;
+          Enterprise-Grade Compliance Layer
+        </div>
+      </div>
     </div>
-    <ul>
-      <li>• TanStack Start + React 19</li>
-      <li>• Vite dev proxy → Express:3001</li>
-      <li>• SPA with hash routing</li>
-      <li>• Industrial Control Panel UI</li>
-    </ul>
-  </div>
-  <div class="card">
-    <div class="card-header">
-      <div class="card-dot emerald"></div>
-      <h3>Backend &amp; AI</h3>
+
+    <div class="diagram-card">
+      <svg
+        width="100%"
+        viewBox="0 0 960 620"
+        xmlns="http://www.w3.org/2000/svg"
+      >
+        <defs>
+          <pattern
+            id="grid"
+            width="40"
+            height="40"
+            patternUnits="userSpaceOnUse"
+          >
+            <path
+              d="M 40 0 L 0 0 0 40"
+              fill="none"
+              stroke="#1e293b"
+              stroke-width="0.5"
+            />
+          </pattern>
+          <marker
+            id="arrow-cyan"
+            markerWidth="8"
+            markerHeight="6"
+            refX="8"
+            refY="3"
+            orient="auto"
+          >
+            <polygon points="0 0, 8 3, 0 6" fill="#22d3ee" />
+          </marker>
+          <marker
+            id="arrow-emerald"
+            markerWidth="8"
+            markerHeight="6"
+            refX="8"
+            refY="3"
+            orient="auto"
+          >
+            <polygon points="0 0, 8 3, 0 6" fill="#34d399" />
+          </marker>
+          <marker
+            id="arrow-amber"
+            markerWidth="8"
+            markerHeight="6"
+            refX="8"
+            refY="3"
+            orient="auto"
+          >
+            <polygon points="0 0, 8 3, 0 6" fill="#fbbf24" />
+          </marker>
+          <marker
+            id="arrow-violet"
+            markerWidth="8"
+            markerHeight="6"
+            refX="8"
+            refY="3"
+            orient="auto"
+          >
+            <polygon points="0 0, 8 3, 0 6" fill="#a78bfa" />
+          </marker>
+          <marker
+            id="arrow-slate"
+            markerWidth="8"
+            markerHeight="6"
+            refX="8"
+            refY="3"
+            orient="auto"
+          >
+            <polygon points="0 0, 8 3, 0 6" fill="#94a3b8" />
+          </marker>
+        </defs>
+
+        <!-- Background grid -->
+        <rect width="960" height="620" fill="#020617" />
+        <rect width="960" height="620" fill="url(#grid)" />
+
+        <!-- ═══ ARROWS (drawn first so they sit behind boxes) ═══ -->
+
+        <!-- Frontend → Vite Proxy -->
+        <line
+          x1="200"
+          y1="90"
+          x2="200"
+          y2="150"
+          stroke="#22d3ee"
+          stroke-width="1.5"
+          marker-end="url(#arrow-cyan)"
+        />
+
+        <!-- Vite Proxy → Express Backend -->
+        <line
+          x1="200"
+          y1="210"
+          x2="200"
+          y2="280"
+          stroke="#34d399"
+          stroke-width="1.5"
+          marker-end="url(#arrow-emerald)"
+        />
+
+        <!-- Express → qwenMemoryAgent -->
+        <line
+          x1="200"
+          y1="360"
+          x2="200"
+          y2="410"
+          stroke="#34d399"
+          stroke-width="1.5"
+          marker-end="url(#arrow-emerald)"
+        />
+
+        <!-- qwenMemoryAgent → DashScope API -->
+        <line
+          x1="300"
+          y1="440"
+          x2="440"
+          y2="440"
+          stroke="#fbbf24"
+          stroke-width="1.5"
+          marker-end="url(#arrow-amber)"
+        />
+
+        <!-- qwenMemoryAgent → Memory Bank -->
+        <line
+          x1="200"
+          y1="470"
+          x2="200"
+          y2="540"
+          stroke="#a78bfa"
+          stroke-width="1.5"
+          marker-end="url(#arrow-violet)"
+        />
+
+        <!-- Express → Supabase -->
+        <line
+          x1="300"
+          y1="320"
+          x2="440"
+          y2="320"
+          stroke="#a78bfa"
+          stroke-width="1.5"
+          marker-end="url(#arrow-violet)"
+        />
+
+        <!-- Express → PostHog (dashed) -->
+        <line
+          x1="300"
+          y1="340"
+          x2="440"
+          y2="220"
+          stroke="#94a3b8"
+          stroke-width="1"
+          stroke-dasharray="4,4"
+          marker-end="url(#arrow-slate)"
+        />
+
+        <!-- Express → Webhooks -->
+        <line
+          x1="100"
+          y1="360"
+          x2="100"
+          y2="440"
+          stroke="#94a3b8"
+          stroke-width="1"
+          stroke-dasharray="4,4"
+          marker-end="url(#arrow-slate)"
+        />
+
+        <!-- ═══ FRONTEND ═══ -->
+        <rect x="80" y="30" width="240" height="60" rx="6" fill="#0f172a" />
+        <rect
+          x="80"
+          y="30"
+          width="240"
+          height="60"
+          rx="6"
+          fill="rgba(8,51,68,0.4)"
+          stroke="#22d3ee"
+          stroke-width="1.5"
+        />
+        <text
+          x="200"
+          y="58"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="12"
+          font-weight="600"
+          fill="#22d3ee"
+        >
+          Frontend
+        </text>
+        <text
+          x="200"
+          y="76"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          TanStack Start + React 19
+        </text>
+
+        <!-- ═══ VITE PROXY ═══ -->
+        <rect x="80" y="150" width="240" height="60" rx="6" fill="#0f172a" />
+        <rect
+          x="80"
+          y="150"
+          width="240"
+          height="60"
+          rx="6"
+          fill="rgba(30,41,59,0.5)"
+          stroke="#94a3b8"
+          stroke-width="1.5"
+        />
+        <text
+          x="200"
+          y="178"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="12"
+          font-weight="600"
+          fill="#94a3b8"
+        >
+          Vite Dev Proxy
+        </text>
+        <text
+          x="200"
+          y="196"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#64748b"
+        >
+          /api/chat/qwen · /api/lookup
+        </text>
+
+        <!-- ═══ EXPRESS BACKEND ═══ -->
+        <rect x="80" y="280" width="240" height="80" rx="6" fill="#0f172a" />
+        <rect
+          x="80"
+          y="280"
+          width="240"
+          height="80"
+          rx="6"
+          fill="rgba(6,78,59,0.4)"
+          stroke="#34d399"
+          stroke-width="1.5"
+        />
+        <text
+          x="200"
+          y="308"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="12"
+          font-weight="600"
+          fill="#34d399"
+        >
+          Express Backend
+        </text>
+        <text
+          x="200"
+          y="326"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          server/index.ts · port 3001
+        </text>
+        <text
+          x="200"
+          y="344"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="8"
+          fill="#64748b"
+        >
+          REST API + CORS + Webhooks
+        </text>
+
+        <!-- ═══ QWEN MEMORY AGENT ═══ -->
+        <rect x="80" y="410" width="240" height="60" rx="6" fill="#0f172a" />
+        <rect
+          x="80"
+          y="410"
+          width="240"
+          height="60"
+          rx="6"
+          fill="rgba(6,78,59,0.4)"
+          stroke="#34d399"
+          stroke-width="1.5"
+        />
+        <text
+          x="200"
+          y="438"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="12"
+          font-weight="600"
+          fill="#34d399"
+        >
+          qwenMemoryAgent.js
+        </text>
+        <text
+          x="200"
+          y="456"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          Core Orchestrator · Validation Gates
+        </text>
+
+        <!-- ═══ DASHSCOPE / QWEN CLOUD ═══ -->
+        <rect x="440" y="390" width="240" height="100" rx="6" fill="#0f172a" />
+        <rect
+          x="440"
+          y="390"
+          width="240"
+          height="100"
+          rx="6"
+          fill="rgba(120,53,15,0.3)"
+          stroke="#fbbf24"
+          stroke-width="1.5"
+        />
+        <text
+          x="560"
+          y="420"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="12"
+          font-weight="600"
+          fill="#fbbf24"
+        >
+          Qwen Cloud (DashScope)
+        </text>
+        <text
+          x="560"
+          y="440"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          dashscope-intl.aliyuncs.com
+        </text>
+        <text
+          x="560"
+          y="458"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          Model: qwen-max
+        </text>
+        <text
+          x="560"
+          y="476"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="8"
+          fill="#64748b"
+        >
+          preserve_thinking: true · temp 0.3
+        </text>
+
+        <!-- ═══ MEMORY BANK ═══ -->
+        <rect x="80" y="540" width="240" height="70" rx="6" fill="#0f172a" />
+        <rect
+          x="80"
+          y="540"
+          width="240"
+          height="70"
+          rx="6"
+          fill="rgba(76,29,149,0.4)"
+          stroke="#a78bfa"
+          stroke-width="1.5"
+        />
+        <text
+          x="200"
+          y="564"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="12"
+          font-weight="600"
+          fill="#a78bfa"
+        >
+          Memory Bank
+        </text>
+        <text
+          x="200"
+          y="582"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="8"
+          fill="#94a3b8"
+        >
+          apprenticeProfile · activeProjectContext
+        </text>
+        <text
+          x="200"
+          y="598"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="8"
+          fill="#94a3b8"
+        >
+          longTermKnowledge
+        </text>
+
+        <!-- ═══ SUPABASE ═══ -->
+        <rect x="440" y="280" width="240" height="60" rx="6" fill="#0f172a" />
+        <rect
+          x="440"
+          y="280"
+          width="240"
+          height="60"
+          rx="6"
+          fill="rgba(76,29,149,0.4)"
+          stroke="#a78bfa"
+          stroke-width="1.5"
+        />
+        <text
+          x="560"
+          y="308"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="12"
+          font-weight="600"
+          fill="#a78bfa"
+        >
+          Supabase
+        </text>
+        <text
+          x="560"
+          y="326"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          PostgreSQL + RLS Auth
+        </text>
+
+        <!-- ═══ POSTHOG ═══ -->
+        <rect x="440" y="180" width="240" height="60" rx="6" fill="#0f172a" />
+        <rect
+          x="440"
+          y="180"
+          width="240"
+          height="60"
+          rx="6"
+          fill="rgba(30,41,59,0.5)"
+          stroke="#94a3b8"
+          stroke-width="1.5"
+        />
+        <text
+          x="560"
+          y="208"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="12"
+          font-weight="600"
+          fill="#94a3b8"
+        >
+          PostHog Analytics
+        </text>
+        <text
+          x="560"
+          y="226"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#64748b"
+        >
+          Event Tracking · Exception Capture
+        </text>
+
+        <!-- ═══ WEBHOOKS ═══ -->
+        <rect x="20" y="440" width="120" height="50" rx="6" fill="#0f172a" />
+        <rect
+          x="20"
+          y="440"
+          width="120"
+          height="50"
+          rx="6"
+          fill="rgba(30,41,59,0.5)"
+          stroke="#94a3b8"
+          stroke-width="1.5"
+        />
+        <text
+          x="80"
+          y="464"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="10"
+          font-weight="600"
+          fill="#94a3b8"
+        >
+          Webhooks
+        </text>
+        <text
+          x="80"
+          y="480"
+          text-anchor="middle"
+          font-family="JetBrains Mono"
+          font-size="8"
+          fill="#64748b"
+        >
+          Stripe Billing
+        </text>
+
+        <!-- ═══ SECURITY BOUNDARY ═══ -->
+        <rect
+          x="70"
+          y="270"
+          width="260"
+          height="200"
+          rx="12"
+          fill="none"
+          stroke="#fb7185"
+          stroke-width="1"
+          stroke-dasharray="4,4"
+        />
+        <text
+          x="75"
+          y="266"
+          font-family="JetBrains Mono"
+          font-size="8"
+          fill="#fb7185"
+        >
+          SECURITY BOUNDARY · CSP + RLS
+        </text>
+
+        <!-- ═══ CLOUD BOUNDARY ═══ -->
+        <rect
+          x="430"
+          y="170"
+          width="260"
+          height="330"
+          rx="12"
+          fill="none"
+          stroke="#fbbf24"
+          stroke-width="1"
+          stroke-dasharray="8,4"
+        />
+        <text
+          x="435"
+          y="166"
+          font-family="JetBrains Mono"
+          font-size="8"
+          fill="#fbbf24"
+        >
+          EXTERNAL SERVICES
+        </text>
+
+        <!-- ═══ LEGEND ═══ -->
+        <rect
+          x="740"
+          y="30"
+          width="200"
+          height="200"
+          rx="6"
+          fill="#0f172a"
+          stroke="#1e293b"
+          stroke-width="1"
+        />
+        <text
+          x="760"
+          y="55"
+          font-family="JetBrains Mono"
+          font-size="10"
+          font-weight="600"
+          fill="#f8fafc"
+        >
+          Legend
+        </text>
+
+        <rect
+          x="760"
+          y="68"
+          width="12"
+          height="12"
+          rx="2"
+          fill="rgba(8,51,68,0.4)"
+          stroke="#22d3ee"
+          stroke-width="1"
+        />
+        <text
+          x="780"
+          y="78"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          Frontend
+        </text>
+
+        <rect
+          x="760"
+          y="90"
+          width="12"
+          height="12"
+          rx="2"
+          fill="rgba(6,78,59,0.4)"
+          stroke="#34d399"
+          stroke-width="1"
+        />
+        <text
+          x="780"
+          y="100"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          Backend
+        </text>
+
+        <rect
+          x="760"
+          y="112"
+          width="12"
+          height="12"
+          rx="2"
+          fill="rgba(76,29,149,0.4)"
+          stroke="#a78bfa"
+          stroke-width="1"
+        />
+        <text
+          x="780"
+          y="122"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          Database / Storage
+        </text>
+
+        <rect
+          x="760"
+          y="134"
+          width="12"
+          height="12"
+          rx="2"
+          fill="rgba(120,53,15,0.3)"
+          stroke="#fbbf24"
+          stroke-width="1"
+        />
+        <text
+          x="780"
+          y="144"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          Cloud / AI Service
+        </text>
+
+        <rect
+          x="760"
+          y="156"
+          width="12"
+          height="12"
+          rx="2"
+          fill="rgba(30,41,59,0.5)"
+          stroke="#94a3b8"
+          stroke-width="1"
+        />
+        <text
+          x="780"
+          y="166"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          External Service
+        </text>
+
+        <line
+          x1="760"
+          y1="188"
+          x2="772"
+          y2="188"
+          stroke="#fb7185"
+          stroke-width="1"
+          stroke-dasharray="4,4"
+        />
+        <text
+          x="780"
+          y="192"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          Security Boundary
+        </text>
+
+        <line
+          x1="760"
+          y1="210"
+          x2="772"
+          y2="210"
+          stroke="#fbbf24"
+          stroke-width="1"
+          stroke-dasharray="8,4"
+        />
+        <text
+          x="780"
+          y="214"
+          font-family="JetBrains Mono"
+          font-size="9"
+          fill="#94a3b8"
+        >
+          Cloud Boundary
+        </text>
+      </svg>
+    </div>
+
+    <div class="cards-grid">
+      <div class="card">
+        <div class="card-header">
+          <div class="card-dot cyan"></div>
+          <h3>Frontend</h3>
+        </div>
+        <ul>
+          <li>• TanStack Start + React 19</li>
+          <li>• Vite dev proxy → Express:3001</li>
+          <li>• SPA with hash routing</li>
+          <li>• Industrial Control Panel UI</li>
+        </ul>
+      </div>
+      <div class="card">
+        <div class="card-header">
+          <div class="card-dot emerald"></div>
+          <h3>Backend &amp; AI</h3>
+        </div>
+        <ul>
+          <li>• Express.js (port 3001)</li>
+          <li>• qwenMemoryAgent.js orchestrator</li>
+          <li>• DashScope intl API (qwen-max)</li>
+          <li>• Validation gates + memory R/W</li>
+        </ul>
+      </div>
+      <div class="card">
+        <div class="card-header">
+          <div class="card-dot violet"></div>
+          <h3>Data &amp; Compliance</h3>
+        </div>
+        <ul>
+          <li>• Supabase PostgreSQL + RLS</li>
+          <li>• 3-file Memory Bank (JSON/MD)</li>
+          <li>• PostHog analytics + error capture</li>
+          <li>• NEC 2026 + EU AI Act audit trail</li>
+        </ul>
+      </div>
     </div>
-    <ul>
-      <li>• Express.js (port 3001)</li>
-      <li>• qwenMemoryAgent.js orchestrator</li>
-      <li>• DashScope intl API (qwen-max)</li>
-      <li>• Validation gates + memory R/W</li>
-    </ul>
-  </div>
-  <div class="card">
-    <div class="card-header">
-      <div class="card-dot violet"></div>
-      <h3>Data &amp; Compliance</h3>
+
+    <div class="footer">
+      Code Compass · NEC Co-Pilot · Architecture v1.0 ·
+      github.com/eddiebax88/code-compass
     </div>
-    <ul>
-      <li>• Supabase PostgreSQL + RLS</li>
-      <li>• 3-file Memory Bank (JSON/MD)</li>
-      <li>• PostHog analytics + error capture</li>
-      <li>• NEC 2026 + EU AI Act audit trail</li>
-    </ul>
-  </div>
-</div>
-
-<div class="footer">Code Compass · NEC Co-Pilot · Architecture v1.0 · github.com/eddiebax88/code-compass</div>
-
-</body>
+  </body>
 </html>
diff --git a/client/index.html b/client/index.html
index 284134b..6b1fca6 100644
--- a/client/index.html
+++ b/client/index.html
@@ -2,16 +2,29 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1" />
+    <meta
+      name="viewport"
+      content="width=device-width, initial-scale=1.0, maximum-scale=1"
+    />
     <title>Code Compass — NEC Co-Pilot</title>
-    <meta name="description" content="The fastest NEC 2026 study tool for electricians. Exam prep, quick drills, and instant code lookup." />
+    <meta
+      name="description"
+      content="The fastest NEC 2026 study tool for electricians. Exam prep, quick drills, and instant code lookup."
+    />
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
-    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap" rel="stylesheet" />
+    <link
+      href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap"
+      rel="stylesheet"
+    />
   </head>
   <body>
     <div id="root"></div>
     <script type="module" src="/src/main.tsx"></script>
-    <script defer src="%VITE_ANALYTICS_ENDPOINT%/umami" data-website-id="%VITE_ANALYTICS_WEBSITE_ID%"></script>
+    <script
+      defer
+      src="%VITE_ANALYTICS_ENDPOINT%/umami"
+      data-website-id="%VITE_ANALYTICS_WEBSITE_ID%"
+    ></script>
   </body>
 </html>
diff --git a/client/public/__manus__/debug-collector.js b/client/public/__manus__/debug-collector.js
index 0504555..8c29cca 100644
--- a/client/public/__manus__/debug-collector.js
+++ b/client/public/__manus__/debug-collector.js
@@ -68,7 +68,9 @@
     if (value === undefined) return undefined;
 
     if (typeof value === "string") {
-      return value.length > 1000 ? value.slice(0, 1000) + "...[truncated]" : value;
+      return value.length > 1000
+        ? value.slice(0, 1000) + "...[truncated]"
+        : value;
     }
 
     if (typeof value !== "object") return value;
@@ -178,7 +180,7 @@
       getAttr("data-test") ||
       null;
 
-    var type = tag === "input" ? (getAttr("type") || "text") : null;
+    var type = tag === "input" ? getAttr("type") || "text" : null;
     var href = tag === "a" ? getAttr("href") || null : null;
 
     // a small, stable hint for agents (avoid building full CSS paths)
@@ -233,7 +235,8 @@
 
     if (isSensitiveField(el)) return { masked: true, length: v.length };
 
-    if (v.length > CONFIG.uiInputMaxLen) v = v.slice(0, CONFIG.uiInputMaxLen) + "…";
+    if (v.length > CONFIG.uiInputMaxLen)
+      v = v.slice(0, CONFIG.uiInputMaxLen) + "…";
     return v;
   }
 
@@ -456,9 +459,10 @@
     init = init || {};
     var startTime = Date.now();
     // Handle string, Request object, or URL object
-    var url = typeof input === "string"
-      ? input
-      : (input && (input.url || input.href || String(input))) || "";
+    var url =
+      typeof input === "string"
+        ? input
+        : (input && (input.url || input.href || String(input))) || "";
     var method = init.method || (input && input.method) || "GET";
 
     // Don't intercept internal requests
@@ -470,7 +474,9 @@
     var requestHeaders = {};
     try {
       if (init.headers) {
-        requestHeaders = Object.fromEntries(new Headers(init.headers).entries());
+        requestHeaders = Object.fromEntries(
+          new Headers(init.headers).entries()
+        );
       }
     } catch (e) {
       requestHeaders = { _parseError: true };
@@ -494,7 +500,9 @@
       .then(function (response) {
         entry.duration = Date.now() - startTime;
 
-        var contentType = (response.headers.get("content-type") || "").toLowerCase();
+        var contentType = (
+          response.headers.get("content-type") || ""
+        ).toLowerCase();
         var contentLength = response.headers.get("content-length");
 
         entry.response = {
@@ -516,9 +524,10 @@
         }
 
         // Skip body capture for streaming responses (SSE, etc.) to avoid memory leaks
-        var isStreaming = contentType.indexOf("text/event-stream") !== -1 ||
-                          contentType.indexOf("application/stream") !== -1 ||
-                          contentType.indexOf("application/x-ndjson") !== -1;
+        var isStreaming =
+          contentType.indexOf("text/event-stream") !== -1 ||
+          contentType.indexOf("application/stream") !== -1 ||
+          contentType.indexOf("application/x-ndjson") !== -1;
         if (isStreaming) {
           entry.response.body = "[Streaming response - not captured]";
           store.networkRequests.push(entry);
@@ -527,20 +536,25 @@
         }
 
         // Skip body capture for large responses to avoid memory issues
-        if (contentLength && parseInt(contentLength, 10) > CONFIG.maxBodyLength) {
-          entry.response.body = "[Response too large: " + contentLength + " bytes]";
+        if (
+          contentLength &&
+          parseInt(contentLength, 10) > CONFIG.maxBodyLength
+        ) {
+          entry.response.body =
+            "[Response too large: " + contentLength + " bytes]";
           store.networkRequests.push(entry);
           pruneBuffer(store.networkRequests, CONFIG.bufferSize.network);
           return response;
         }
 
         // Skip body capture for binary content types
-        var isBinary = contentType.indexOf("image/") !== -1 ||
-                       contentType.indexOf("video/") !== -1 ||
-                       contentType.indexOf("audio/") !== -1 ||
-                       contentType.indexOf("application/octet-stream") !== -1 ||
-                       contentType.indexOf("application/pdf") !== -1 ||
-                       contentType.indexOf("application/zip") !== -1;
+        var isBinary =
+          contentType.indexOf("image/") !== -1 ||
+          contentType.indexOf("video/") !== -1 ||
+          contentType.indexOf("audio/") !== -1 ||
+          contentType.indexOf("application/octet-stream") !== -1 ||
+          contentType.indexOf("application/pdf") !== -1 ||
+          contentType.indexOf("application/zip") !== -1;
         if (isBinary) {
           entry.response.body = "[Binary content: " + contentType + "]";
           store.networkRequests.push(entry);
@@ -558,7 +572,8 @@
             if (text.length <= CONFIG.maxBodyLength) {
               entry.response.body = sanitizeValue(tryParseJson(text));
             } else {
-              entry.response.body = text.slice(0, CONFIG.maxBodyLength) + "...[truncated]";
+              entry.response.body =
+                text.slice(0, CONFIG.maxBodyLength) + "...[truncated]";
             }
           })
           .catch(function () {
@@ -615,24 +630,30 @@
       xhr._manusData.url.indexOf("/__manus__/") !== 0
     ) {
       xhr._manusData.startTime = Date.now();
-      xhr._manusData.requestBody = body ? sanitizeValue(tryParseJson(body)) : null;
+      xhr._manusData.requestBody = body
+        ? sanitizeValue(tryParseJson(body))
+        : null;
 
       xhr.addEventListener("load", function () {
-        var contentType = (xhr.getResponseHeader("content-type") || "").toLowerCase();
+        var contentType = (
+          xhr.getResponseHeader("content-type") || ""
+        ).toLowerCase();
         var responseBody = null;
 
         // Skip body capture for streaming responses
-        var isStreaming = contentType.indexOf("text/event-stream") !== -1 ||
-                          contentType.indexOf("application/stream") !== -1 ||
-                          contentType.indexOf("application/x-ndjson") !== -1;
+        var isStreaming =
+          contentType.indexOf("text/event-stream") !== -1 ||
+          contentType.indexOf("application/stream") !== -1 ||
+          contentType.indexOf("application/x-ndjson") !== -1;
 
         // Skip body capture for binary content types
-        var isBinary = contentType.indexOf("image/") !== -1 ||
-                       contentType.indexOf("video/") !== -1 ||
-                       contentType.indexOf("audio/") !== -1 ||
-                       contentType.indexOf("application/octet-stream") !== -1 ||
-                       contentType.indexOf("application/pdf") !== -1 ||
-                       contentType.indexOf("application/zip") !== -1;
+        var isBinary =
+          contentType.indexOf("image/") !== -1 ||
+          contentType.indexOf("video/") !== -1 ||
+          contentType.indexOf("audio/") !== -1 ||
+          contentType.indexOf("application/octet-stream") !== -1 ||
+          contentType.indexOf("application/pdf") !== -1 ||
+          contentType.indexOf("application/zip") !== -1;
 
         if (isStreaming) {
           responseBody = "[Streaming response - not captured]";
@@ -643,7 +664,8 @@
           try {
             var text = xhr.responseText || "";
             if (text.length > CONFIG.maxBodyLength) {
-              responseBody = text.slice(0, CONFIG.maxBodyLength) + "...[truncated]";
+              responseBody =
+                text.slice(0, CONFIG.maxBodyLength) + "...[truncated]";
             } else {
               responseBody = sanitizeValue(tryParseJson(text));
             }
@@ -817,5 +839,7 @@
     forceReport: reportLogs,
   };
 
-  console.debug("[Manus] Debug collector initialized (no rrweb, UI events only)");
+  console.debug(
+    "[Manus] Debug collector initialized (no rrweb, UI events only)"
+  );
 })();
diff --git a/client/src/App.tsx b/client/src/App.tsx
index 5ba7957..8af221f 100644
--- a/client/src/App.tsx
+++ b/client/src/App.tsx
@@ -1,6 +1,7 @@
 import { Toaster } from "@/components/ui/sonner";
 import { TooltipProvider } from "@/components/ui/tooltip";
 import NotFound from "@/pages/NotFound";
+import { Analytics } from "@vercel/analytics/react";
 import { Route, Switch } from "wouter";
 import ErrorBoundary from "./components/ErrorBoundary";
 import { ThemeProvider } from "./contexts/ThemeContext";
@@ -42,6 +43,7 @@ function App() {
         <TooltipProvider>
           <Toaster />
           <Router />
+          <Analytics />
         </TooltipProvider>
       </ThemeProvider>
     </ErrorBoundary>
diff --git a/client/src/_core/hooks/useAuth.ts b/client/src/_core/hooks/useAuth.ts
index 01cc650..64771f8 100644
--- a/client/src/_core/hooks/useAuth.ts
+++ b/client/src/_core/hooks/useAuth.ts
@@ -70,7 +70,7 @@ export function useAuth(options?: UseAuthOptions) {
     if (typeof window === "undefined") return;
     if (window.location.pathname === redirectPath) return;
 
-    window.location.href = redirectPath
+    window.location.href = redirectPath;
   }, [
     redirectOnUnauthenticated,
     redirectPath,
diff --git a/client/src/components/AIChatBox.tsx b/client/src/components/AIChatBox.tsx
index 1c00871..52b235f 100644
--- a/client/src/components/AIChatBox.tsx
+++ b/client/src/components/AIChatBox.tsx
@@ -127,7 +127,7 @@ export function AIChatBox({
   const textareaRef = useRef<HTMLTextAreaElement>(null);
 
   // Filter out system messages
-  const displayMessages = messages.filter((msg) => msg.role !== "system");
+  const displayMessages = messages.filter(msg => msg.role !== "system");
 
   // Calculate min-height for last assistant message to push user message to top
   const [minHeightForLastMessage, setMinHeightForLastMessage] = useState(0);
@@ -143,7 +143,8 @@ export function AIChatBox({
       // - user message: 40px (item height) + 16px (margin-top from space-y-4) = 56px
       // Note: margin-bottom is not counted because it naturally pushes the assistant message down
       const userMessageReservedHeight = 56;
-      const calculatedHeight = scrollAreaHeight - 32 - userMessageReservedHeight;
+      const calculatedHeight =
+        scrollAreaHeight - 32 - userMessageReservedHeight;
 
       setMinHeightForLastMessage(Math.max(0, calculatedHeight));
     }
@@ -152,14 +153,14 @@ export function AIChatBox({
   // Scroll to bottom helper function with smooth animation
   const scrollToBottom = () => {
     const viewport = scrollAreaRef.current?.querySelector(
-      '[data-radix-scroll-area-viewport]'
+      "[data-radix-scroll-area-viewport]"
     ) as HTMLDivElement;
 
     if (viewport) {
       requestAnimationFrame(() => {
         viewport.scrollTo({
           top: viewport.scrollHeight,
-          behavior: 'smooth'
+          behavior: "smooth",
         });
       });
     }
@@ -311,7 +312,7 @@ export function AIChatBox({
         <Textarea
           ref={textareaRef}
           value={input}
-          onChange={(e) => setInput(e.target.value)}
+          onChange={e => setInput(e.target.value)}
           onKeyDown={handleKeyDown}
           placeholder={placeholder}
           className="flex-1 max-h-32 resize-none min-h-9"
diff --git a/client/src/components/AppLayout.tsx b/client/src/components/AppLayout.tsx
index b6af539..52ac664 100644
--- a/client/src/components/AppLayout.tsx
+++ b/client/src/components/AppLayout.tsx
@@ -5,7 +5,14 @@
  */
 import { useEffect } from "react";
 import { Link, useLocation } from "wouter";
-import { Zap, Search, LayoutDashboard, Timer, CreditCard, Bot } from "lucide-react";
+import {
+  Zap,
+  Search,
+  LayoutDashboard,
+  Timer,
+  CreditCard,
+  Bot,
+} from "lucide-react";
 import ThemeToggle from "./ThemeToggle";
 import { InAppBrowserBanner } from "./InAppBrowserBanner";
 import { trpc } from "@/lib/trpc";
@@ -27,9 +34,12 @@ export default function AppLayout({ children }: { children: React.ReactNode }) {
   const { oledUnlocked, setOledUnlocked } = useTheme();
 
   // OLED is a paid perk. Unlock it only when the signed-in user has active access.
-  const { data: subStatus } = trpc.stripe.subscriptionStatus.useQuery(undefined, {
-    enabled: isAuthenticated,
-  });
+  const { data: subStatus } = trpc.stripe.subscriptionStatus.useQuery(
+    undefined,
+    {
+      enabled: isAuthenticated,
+    }
+  );
   const hasPaidAccess =
     isAuthenticated &&
     (subStatus?.status === "active" || subStatus?.status === "trialing");
@@ -52,7 +62,9 @@ export default function AppLayout({ children }: { children: React.ReactNode }) {
                 className="w-8 h-8"
               />
               <div className="hidden sm:block leading-tight">
-                <h1 className="text-sm font-bold text-foreground tracking-tight">CODE COMPASS</h1>
+                <h1 className="text-sm font-bold text-foreground tracking-tight">
+                  CODE COMPASS
+                </h1>
                 <p className="stencil-label">NEC 2026</p>
               </div>
             </div>
@@ -82,9 +94,7 @@ export default function AppLayout({ children }: { children: React.ReactNode }) {
           </nav>
 
           {/* Single theme toggle — paid perk only */}
-          <div className="flex-shrink-0">
-            {oledUnlocked && <ThemeToggle />}
-          </div>
+          <div className="flex-shrink-0">{oledUnlocked && <ThemeToggle />}</div>
         </div>
       </header>
 
diff --git a/client/src/components/DashboardLayout.tsx b/client/src/components/DashboardLayout.tsx
index 0bf7437..b0526b3 100644
--- a/client/src/components/DashboardLayout.tsx
+++ b/client/src/components/DashboardLayout.tsx
@@ -24,7 +24,7 @@ import { useIsMobile } from "@/hooks/useMobile";
 import { LayoutDashboard, LogOut, PanelLeft, Users } from "lucide-react";
 import { CSSProperties, useEffect, useRef, useState } from "react";
 import { useLocation } from "wouter";
-import { DashboardLayoutSkeleton } from './DashboardLayoutSkeleton';
+import { DashboardLayoutSkeleton } from "./DashboardLayoutSkeleton";
 import { Button } from "./ui/button";
 
 const menuItems = [
@@ -53,7 +53,7 @@ export default function DashboardLayout({
   }, [sidebarWidth]);
 
   if (loading) {
-    return <DashboardLayoutSkeleton />
+    return <DashboardLayoutSkeleton />;
   }
 
   if (!user) {
@@ -65,7 +65,8 @@ export default function DashboardLayout({
               Sign in to continue
             </h1>
             <p className="text-sm text-muted-foreground text-center max-w-sm">
-              Access to this dashboard requires authentication. Continue to launch the login flow.
+              Access to this dashboard requires authentication. Continue to
+              launch the login flow.
             </p>
           </div>
           <Button
diff --git a/client/src/components/DashboardLayoutSkeleton.tsx b/client/src/components/DashboardLayoutSkeleton.tsx
index 9ae9335..c7958f2 100644
--- a/client/src/components/DashboardLayoutSkeleton.tsx
+++ b/client/src/components/DashboardLayoutSkeleton.tsx
@@ -1,4 +1,4 @@
-import { Skeleton } from './ui/skeleton';
+import { Skeleton } from "./ui/skeleton";
 
 export function DashboardLayoutSkeleton() {
   return (
diff --git a/client/src/components/InAppBrowserBanner.tsx b/client/src/components/InAppBrowserBanner.tsx
index 3a6ec2f..2168aa6 100644
--- a/client/src/components/InAppBrowserBanner.tsx
+++ b/client/src/components/InAppBrowserBanner.tsx
@@ -1,9 +1,6 @@
 import { useState } from "react";
 import { Copy, ExternalLink, X } from "lucide-react";
-import {
-  getInAppBrowserLabel,
-  useInAppBrowser,
-} from "@/hooks/useInAppBrowser";
+import { getInAppBrowserLabel, useInAppBrowser } from "@/hooks/useInAppBrowser";
 
 /**
  * Shown when the app is opened inside a social in-app browser
@@ -45,7 +42,8 @@ export function InAppBrowserBanner() {
           </p>
           <p className="text-foreground/80">
             {appName}'s built-in browser blocks Google login. To create your
-            account or sign in: <span className="font-medium">{instruction}</span>
+            account or sign in:{" "}
+            <span className="font-medium">{instruction}</span>
           </p>
           <div className="mt-2 flex flex-wrap items-center gap-2">
             <button
diff --git a/client/src/components/LookupGuide.tsx b/client/src/components/LookupGuide.tsx
index 80c143a..1a22abd 100644
--- a/client/src/components/LookupGuide.tsx
+++ b/client/src/components/LookupGuide.tsx
@@ -25,7 +25,7 @@ export default function LookupGuide({ lookup }: { lookup: LookupPath }) {
               1 · Look up in the index
             </p>
             <div className="flex flex-wrap gap-1.5 mt-1">
-              {lookup.index_keywords.map((kw) => (
+              {lookup.index_keywords.map(kw => (
                 <span
                   key={kw}
                   className="text-xs font-medium text-foreground bg-primary/15 border border-primary/30 rounded-sm px-2 py-0.5"
@@ -60,13 +60,16 @@ export default function LookupGuide({ lookup }: { lookup: LookupPath }) {
             <p className="text-xs font-mono text-muted-foreground uppercase tracking-wide">
               3 · Read for
             </p>
-            <p className="text-sm text-foreground mt-0.5">{lookup.what_to_look_for}</p>
+            <p className="text-sm text-foreground mt-0.5">
+              {lookup.what_to_look_for}
+            </p>
           </div>
         </li>
       </ol>
 
       <p className="mt-3 pt-3 border-t border-border text-xs text-muted-foreground italic">
-        Open your code book and trace this path yourself — that's the skill the exam tests.
+        Open your code book and trace this path yourself — that's the skill the
+        exam tests.
       </p>
     </div>
   );
diff --git a/client/src/components/PaywallGate.tsx b/client/src/components/PaywallGate.tsx
index 00a4ac8..752d7ce 100644
--- a/client/src/components/PaywallGate.tsx
+++ b/client/src/components/PaywallGate.tsx
@@ -66,7 +66,11 @@ export function PaywallGate({ children, featureName }: PaywallGateProps) {
         </Link>
 
         <Link href="/copilot">
-          <Button size="lg" variant="outline" className="h-12 px-7 border-border">
+          <Button
+            size="lg"
+            variant="outline"
+            className="h-12 px-7 border-border"
+          >
             <Bot className="w-4 h-4 mr-2" />
             Try 3 free Co-Pilot questions
           </Button>
@@ -76,14 +80,18 @@ export function PaywallGate({ children, featureName }: PaywallGateProps) {
       {!isAuthenticated && (
         <p className="mt-6 text-sm text-muted-foreground">
           Already purchased?{" "}
-          <a href={getLoginUrl()} className="text-amber-600 underline underline-offset-2">
+          <a
+            href={getLoginUrl()}
+            className="text-amber-600 underline underline-offset-2"
+          >
             Sign in
           </a>
         </p>
       )}
 
       <p className="mt-4 text-xs text-muted-foreground">
-        One-time payment · Instant access · All 4 NEC versions (2017/2020/2023/2026)
+        One-time payment · Instant access · All 4 NEC versions
+        (2017/2020/2023/2026)
       </p>
     </div>
   );
diff --git a/client/src/components/ThemeToggle.tsx b/client/src/components/ThemeToggle.tsx
index e2e88d4..f889012 100644
--- a/client/src/components/ThemeToggle.tsx
+++ b/client/src/components/ThemeToggle.tsx
@@ -5,7 +5,11 @@
 import { Moon, Sun } from "lucide-react";
 import { useTheme } from "../contexts/ThemeContext";
 
-export default function ThemeToggle({ className = "" }: { className?: string }) {
+export default function ThemeToggle({
+  className = "",
+}: {
+  className?: string;
+}) {
   const { theme, toggleTheme } = useTheme();
   const isOled = theme === "oled";
 
diff --git a/client/src/components/ui/button.tsx b/client/src/components/ui/button.tsx
index 6d74f9a..162f5e7 100644
--- a/client/src/components/ui/button.tsx
+++ b/client/src/components/ui/button.tsx
@@ -16,8 +16,7 @@ const buttonVariants = cva(
           "border bg-transparent shadow-xs hover:bg-accent dark:bg-transparent dark:border-input dark:hover:bg-input/50",
         secondary:
           "bg-secondary text-secondary-foreground hover:bg-secondary/80",
-        ghost:
-          "hover:bg-accent dark:hover:bg-accent/50",
+        ghost: "hover:bg-accent dark:hover:bg-accent/50",
         link: "text-primary underline-offset-4 hover:underline",
       },
       size: {
diff --git a/client/src/components/ui/dialog.tsx b/client/src/components/ui/dialog.tsx
index 9a84318..e9a906b 100644
--- a/client/src/components/ui/dialog.tsx
+++ b/client/src/components/ui/dialog.tsx
@@ -204,6 +204,5 @@ export {
   DialogOverlay,
   DialogPortal,
   DialogTitle,
-  DialogTrigger
+  DialogTrigger,
 };
-
diff --git a/client/src/components/ui/input.tsx b/client/src/components/ui/input.tsx
index 159aa02..dfd31c9 100644
--- a/client/src/components/ui/input.tsx
+++ b/client/src/components/ui/input.tsx
@@ -20,9 +20,11 @@ function Input({
     onCompositionEnd: handleCompositionEnd,
     onKeyDown: handleKeyDown,
   } = useComposition<HTMLInputElement>({
-    onKeyDown: (e) => {
+    onKeyDown: e => {
       // Check if this is an Enter key that should be blocked
-      const isComposing = (e.nativeEvent as any).isComposing || dialogComposition.justEndedComposing();
+      const isComposing =
+        (e.nativeEvent as any).isComposing ||
+        dialogComposition.justEndedComposing();
 
       // If Enter key is pressed while composing or just after composition ended,
       // don't call the user's onKeyDown (this blocks the business logic)
diff --git a/client/src/components/ui/sidebar.tsx b/client/src/components/ui/sidebar.tsx
index 2744889..1a587d1 100644
--- a/client/src/components/ui/sidebar.tsx
+++ b/client/src/components/ui/sidebar.tsx
@@ -729,6 +729,5 @@ export {
   SidebarRail,
   SidebarSeparator,
   SidebarTrigger,
-  useSidebar
+  useSidebar,
 };
-
diff --git a/client/src/components/ui/textarea.tsx b/client/src/components/ui/textarea.tsx
index df7c37e..5a73b62 100644
--- a/client/src/components/ui/textarea.tsx
+++ b/client/src/components/ui/textarea.tsx
@@ -19,9 +19,11 @@ function Textarea({
     onCompositionEnd: handleCompositionEnd,
     onKeyDown: handleKeyDown,
   } = useComposition<HTMLTextAreaElement>({
-    onKeyDown: (e) => {
+    onKeyDown: e => {
       // Check if this is an Enter key that should be blocked
-      const isComposing = (e.nativeEvent as any).isComposing || dialogComposition.justEndedComposing();
+      const isComposing =
+        (e.nativeEvent as any).isComposing ||
+        dialogComposition.justEndedComposing();
 
       // If Enter key is pressed while composing or just after composition ended,
       // don't call the user's onKeyDown (this blocks the business logic)
diff --git a/client/src/contexts/ThemeContext.tsx b/client/src/contexts/ThemeContext.tsx
index fe74c23..db0f045 100644
--- a/client/src/contexts/ThemeContext.tsx
+++ b/client/src/contexts/ThemeContext.tsx
@@ -76,7 +76,13 @@ export function ThemeProvider({ children }: { children: React.ReactNode }) {
 
   return (
     <ThemeContext.Provider
-      value={{ theme: effectiveTheme, setTheme, toggleTheme, oledUnlocked, setOledUnlocked }}
+      value={{
+        theme: effectiveTheme,
+        setTheme,
+        toggleTheme,
+        oledUnlocked,
+        setOledUnlocked,
+      }}
     >
       {children}
     </ThemeContext.Provider>
diff --git a/client/src/data/questionBank.ts b/client/src/data/questionBank.ts
index cb59b5b..60afcbd 100644
--- a/client/src/data/questionBank.ts
+++ b/client/src/data/questionBank.ts
@@ -4,10 +4,10 @@
  */
 
 export interface LookupPath {
-  index_keywords: string[];       // Words to search in the NEC index
-  index_entry: string;            // Exact index entry to find
-  article_or_table: string;       // Where the index sends you
-  what_to_look_for: string;       // What to read on that page (table row, exception, subsection)
+  index_keywords: string[]; // Words to search in the NEC index
+  index_entry: string; // Exact index entry to find
+  article_or_table: string; // Where the index sends you
+  what_to_look_for: string; // What to read on that page (table row, exception, subsection)
 }
 
 export interface QuestionCard {
@@ -17,7 +17,7 @@ export interface QuestionCard {
   correct_answer: string;
   explanation: string;
   nec_article: string;
-  nec_versions: ("2017" | "2020" | "2023" | "2026")[];  // Which code editions this applies to
+  nec_versions: ("2017" | "2020" | "2023" | "2026")[]; // Which code editions this applies to
   difficulty: "journeyman" | "master" | "inspector";
   tags: string[];
   lookup_path: LookupPath;
@@ -26,10 +26,12 @@ export interface QuestionCard {
 export const questionBank: QuestionCard[] = [
   {
     id: "310-001",
-    question: "What is the allowable ampacity of a 3/0 AWG copper THWN-2 conductor installed in a raceway containing three current-carrying conductors at an ambient temperature of 30°C?",
+    question:
+      "What is the allowable ampacity of a 3/0 AWG copper THWN-2 conductor installed in a raceway containing three current-carrying conductors at an ambient temperature of 30°C?",
     choices: ["200 amps", "225 amps", "250 amps", "175 amps"],
     correct_answer: "225 amps",
-    explanation: "Per Table 310.16, a 3/0 AWG copper conductor with 90°C rated insulation (THWN-2) has an ampacity of 225A with not more than three current-carrying conductors at 30°C ambient.",
+    explanation:
+      "Per Table 310.16, a 3/0 AWG copper conductor with 90°C rated insulation (THWN-2) has an ampacity of 225A with not more than three current-carrying conductors at 30°C ambient.",
     nec_article: "Table 310.16",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
@@ -38,83 +40,117 @@ export const questionBank: QuestionCard[] = [
       index_keywords: ["Ampacity", "Conductors, ampacity"],
       index_entry: "Conductors, ampacity — see Table 310.16",
       article_or_table: "Table 310.16",
-      what_to_look_for: "Find the '3/0 AWG' row → read the '90°C (THWN-2)' copper column → value is 225A"
-    }
+      what_to_look_for:
+        "Find the '3/0 AWG' row → read the '90°C (THWN-2)' copper column → value is 225A",
+    },
   },
   {
     id: "430-001",
-    question: "What is the maximum percentage of full-load current rating used to size branch-circuit short-circuit and ground-fault protection for a non-time-delay fuse protecting a single-phase motor?",
+    question:
+      "What is the maximum percentage of full-load current rating used to size branch-circuit short-circuit and ground-fault protection for a non-time-delay fuse protecting a single-phase motor?",
     choices: ["150%", "200%", "250%", "300%"],
     correct_answer: "300%",
-    explanation: "Table 430.52(C)(1) specifies a maximum of 300% of motor FLC for non-time-delay fuses. This can increase to 400% if the motor cannot start at 300%.",
+    explanation:
+      "Table 430.52(C)(1) specifies a maximum of 300% of motor FLC for non-time-delay fuses. This can increase to 400% if the motor cannot start at 300%.",
     nec_article: "Table 430.52(C)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["motors", "overcurrent", "fuses", "branch-circuit"],
     lookup_path: {
-      index_keywords: ["Motors, overcurrent protection", "Fuses, motor branch circuit"],
-      index_entry: "Motors — branch-circuit short-circuit and ground-fault protection → 430.52",
+      index_keywords: [
+        "Motors, overcurrent protection",
+        "Fuses, motor branch circuit",
+      ],
+      index_entry:
+        "Motors — branch-circuit short-circuit and ground-fault protection → 430.52",
       article_or_table: "Table 430.52(C)(1)",
-      what_to_look_for: "Find 'Non-time-delay fuse' row → read the '% of Full-Load Current' column → 300%"
-    }
+      what_to_look_for:
+        "Find 'Non-time-delay fuse' row → read the '% of Full-Load Current' column → 300%",
+    },
   },
   {
     id: "250-001",
-    question: "What is the minimum size copper grounding electrode conductor required for a service supplied by 4/0 AWG copper ungrounded service-entrance conductors?",
+    question:
+      "What is the minimum size copper grounding electrode conductor required for a service supplied by 4/0 AWG copper ungrounded service-entrance conductors?",
     choices: ["4 AWG", "2 AWG", "1/0 AWG", "6 AWG"],
     correct_answer: "2 AWG",
-    explanation: "Table 250.66 requires a minimum 2 AWG copper grounding electrode conductor when service-entrance conductors are sized 3/0 through 250 kcmil copper.",
+    explanation:
+      "Table 250.66 requires a minimum 2 AWG copper grounding electrode conductor when service-entrance conductors are sized 3/0 through 250 kcmil copper.",
     nec_article: "Table 250.66",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["grounding", "service", "electrode conductor"],
     lookup_path: {
-      index_keywords: ["Grounding electrode conductor, size", "Service, grounding"],
+      index_keywords: [
+        "Grounding electrode conductor, size",
+        "Service, grounding",
+      ],
       index_entry: "Grounding electrode conductors — size → Table 250.66",
       article_or_table: "Table 250.66",
-      what_to_look_for: "Find '3/0 AWG–350 kcmil' row in the service conductor column → GEC size is 2 AWG copper"
-    }
+      what_to_look_for:
+        "Find '3/0 AWG–350 kcmil' row in the service conductor column → GEC size is 2 AWG copper",
+    },
   },
   {
     id: "210-001",
-    question: "What is the minimum number of 20-ampere small-appliance branch circuits required for a dwelling unit kitchen?",
+    question:
+      "What is the minimum number of 20-ampere small-appliance branch circuits required for a dwelling unit kitchen?",
     choices: ["One", "Two", "Three", "Four"],
     correct_answer: "Two",
-    explanation: "NEC 210.11(C)(1) requires at least two 20-ampere small-appliance branch circuits to serve receptacle outlets in the kitchen, pantry, dining room, and similar areas.",
+    explanation:
+      "NEC 210.11(C)(1) requires at least two 20-ampere small-appliance branch circuits to serve receptacle outlets in the kitchen, pantry, dining room, and similar areas.",
     nec_article: "210.11(C)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["dwelling", "kitchen", "branch circuits", "receptacles"],
     lookup_path: {
-      index_keywords: ["Small-appliance branch circuits", "Kitchen, branch circuits"],
-      index_entry: "Small-appliance branch circuits — dwelling units → 210.11(C)(1)",
+      index_keywords: [
+        "Small-appliance branch circuits",
+        "Kitchen, branch circuits",
+      ],
+      index_entry:
+        "Small-appliance branch circuits — dwelling units → 210.11(C)(1)",
       article_or_table: "210.11(C)(1)",
-      what_to_look_for: "Read the section — it states 'not fewer than two' 20-ampere circuits required"
-    }
+      what_to_look_for:
+        "Read the section — it states 'not fewer than two' 20-ampere circuits required",
+    },
   },
   {
     id: "450-001",
-    question: "What is the maximum overcurrent protection rating for the primary of a transformer (600V or less) with a primary current of 9 amperes or more, when there is no secondary protection?",
+    question:
+      "What is the maximum overcurrent protection rating for the primary of a transformer (600V or less) with a primary current of 9 amperes or more, when there is no secondary protection?",
     choices: ["125%", "150%", "167%", "200%"],
     correct_answer: "125%",
-    explanation: "NEC 450.3(B) requires primary-only overcurrent protection for transformers rated 600V or less with primary current of 9A or more to be set at not more than 125% of rated primary current.",
+    explanation:
+      "NEC 450.3(B) requires primary-only overcurrent protection for transformers rated 600V or less with primary current of 9A or more to be set at not more than 125% of rated primary current.",
     nec_article: "450.3(B)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["transformers", "overcurrent", "primary protection"],
     lookup_path: {
-      index_keywords: ["Transformers, overcurrent protection", "Overcurrent protection, transformers"],
+      index_keywords: [
+        "Transformers, overcurrent protection",
+        "Overcurrent protection, transformers",
+      ],
       index_entry: "Transformers — overcurrent protection → 450.3",
       article_or_table: "Table 450.3(B)",
-      what_to_look_for: "Find row for 'Primary ≥ 9A, no secondary protection' → column shows 125% maximum"
-    }
+      what_to_look_for:
+        "Find row for 'Primary ≥ 9A, no secondary protection' → column shows 125% maximum",
+    },
   },
   {
     id: "500-001",
-    question: "What is the classification of a location where ignitable concentrations of flammable gases are present continuously under normal operating conditions?",
-    choices: ["Class I, Division 1", "Class I, Division 2", "Class II, Division 1", "Zone 0"],
+    question:
+      "What is the classification of a location where ignitable concentrations of flammable gases are present continuously under normal operating conditions?",
+    choices: [
+      "Class I, Division 1",
+      "Class I, Division 2",
+      "Class II, Division 1",
+      "Zone 0",
+    ],
     correct_answer: "Class I, Division 1",
-    explanation: "NEC 500.5(B)(1) defines Class I, Division 1 as locations where ignitable concentrations of flammable gases or vapors can exist under normal operating conditions.",
+    explanation:
+      "NEC 500.5(B)(1) defines Class I, Division 1 as locations where ignitable concentrations of flammable gases or vapors can exist under normal operating conditions.",
     nec_article: "500.5(B)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
@@ -123,224 +159,326 @@ export const questionBank: QuestionCard[] = [
       index_keywords: ["Hazardous locations, classified", "Class I locations"],
       index_entry: "Hazardous (classified) locations — Class I → 500.5(B)",
       article_or_table: "500.5(B)(1)",
-      what_to_look_for: "Read (B)(1) — 'continuously, intermittently, or periodically under normal operating conditions' = Division 1"
-    }
+      what_to_look_for:
+        "Read (B)(1) — 'continuously, intermittently, or periodically under normal operating conditions' = Division 1",
+    },
   },
   {
     id: "690-001",
-    question: "What is the maximum permitted system voltage for a photovoltaic (PV) system installed in a one-family dwelling?",
+    question:
+      "What is the maximum permitted system voltage for a photovoltaic (PV) system installed in a one-family dwelling?",
     choices: ["300 volts", "480 volts", "600 volts", "1000 volts"],
     correct_answer: "600 volts",
-    explanation: "NEC 690.7(2) limits the maximum DC system voltage for PV systems on one- and two-family dwellings to 600 volts.",
+    explanation:
+      "NEC 690.7(2) limits the maximum DC system voltage for PV systems on one- and two-family dwellings to 600 volts.",
     nec_article: "690.7(2)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["solar", "photovoltaic", "voltage", "dwelling"],
     lookup_path: {
-      index_keywords: ["Photovoltaic systems, voltage", "Solar systems, maximum voltage"],
+      index_keywords: [
+        "Photovoltaic systems, voltage",
+        "Solar systems, maximum voltage",
+      ],
       index_entry: "Photovoltaic (PV) systems — maximum voltage → 690.7",
       article_or_table: "690.7(2)",
-      what_to_look_for: "Read subsection (2) — one- and two-family dwellings limited to 600V DC maximum"
-    }
+      what_to_look_for:
+        "Read subsection (2) — one- and two-family dwellings limited to 600V DC maximum",
+    },
   },
   {
     id: "314-001",
-    question: "What is the maximum number of 10 AWG conductors permitted in a 4 inch x 1½ inch square box?",
+    question:
+      "What is the maximum number of 10 AWG conductors permitted in a 4 inch x 1½ inch square box?",
     choices: ["6", "7", "8", "9"],
     correct_answer: "8",
-    explanation: "Table 314.16(A)(2) permits a maximum of 8 conductors of 10 AWG in a 4 x 1½ inch square metal box (21.0 cubic inches volume).",
+    explanation:
+      "Table 314.16(A)(2) permits a maximum of 8 conductors of 10 AWG in a 4 x 1½ inch square metal box (21.0 cubic inches volume).",
     nec_article: "Table 314.16(A)(2)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["box fill", "conductors", "square box"],
     lookup_path: {
-      index_keywords: ["Box fill", "Outlet boxes, conductor fill", "Boxes, conductor fill"],
+      index_keywords: [
+        "Box fill",
+        "Outlet boxes, conductor fill",
+        "Boxes, conductor fill",
+      ],
       index_entry: "Boxes — conductor fill → 314.16 → Table 314.16(A)",
       article_or_table: "Table 314.16(A)(2)",
-      what_to_look_for: "Find '4 × 1½ square' row → read '10 AWG' conductor count column → 8 conductors"
-    }
+      what_to_look_for:
+        "Find '4 × 1½ square' row → read '10 AWG' conductor count column → 8 conductors",
+    },
   },
   {
     id: "240-001",
-    question: "What is the standard ampere rating for an overcurrent device immediately above 800 amperes?",
+    question:
+      "What is the standard ampere rating for an overcurrent device immediately above 800 amperes?",
     choices: ["850 amperes", "900 amperes", "1000 amperes", "1200 amperes"],
     correct_answer: "1000 amperes",
-    explanation: "Table 240.6(A) lists 1000 amperes as the next standard rating above 800 amperes for fuses and inverse time circuit breakers.",
+    explanation:
+      "Table 240.6(A) lists 1000 amperes as the next standard rating above 800 amperes for fuses and inverse time circuit breakers.",
     nec_article: "Table 240.6(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["overcurrent", "standard ratings", "circuit breakers"],
     lookup_path: {
-      index_keywords: ["Overcurrent protective devices, ratings", "Circuit breakers, standard ratings"],
-      index_entry: "Overcurrent protective devices — standard ampere ratings → 240.6(A)",
+      index_keywords: [
+        "Overcurrent protective devices, ratings",
+        "Circuit breakers, standard ratings",
+      ],
+      index_entry:
+        "Overcurrent protective devices — standard ampere ratings → 240.6(A)",
       article_or_table: "Table 240.6(A)",
-      what_to_look_for: "Scan the list of standard ratings — after 800A the next value listed is 1000A"
-    }
+      what_to_look_for:
+        "Scan the list of standard ratings — after 800A the next value listed is 1000A",
+    },
   },
   {
     id: "680-001",
-    question: "What is the minimum required depth for a wet-niche luminaire installed in a permanently installed swimming pool?",
+    question:
+      "What is the minimum required depth for a wet-niche luminaire installed in a permanently installed swimming pool?",
     choices: ["12 inches", "18 inches", "24 inches", "4 inches"],
     correct_answer: "18 inches",
-    explanation: "NEC 680.23(A)(5) requires the top of the luminaire lens to be installed at least 18 inches below the normal water level of the pool.",
+    explanation:
+      "NEC 680.23(A)(5) requires the top of the luminaire lens to be installed at least 18 inches below the normal water level of the pool.",
     nec_article: "680.23(A)(5)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["swimming pool", "luminaire", "wet-niche", "depth"],
     lookup_path: {
-      index_keywords: ["Swimming pools, luminaires", "Luminaires, wet-niche", "Pools, underwater lighting"],
+      index_keywords: [
+        "Swimming pools, luminaires",
+        "Luminaires, wet-niche",
+        "Pools, underwater lighting",
+      ],
       index_entry: "Swimming pools — luminaires, wet-niche → 680.23",
       article_or_table: "680.23(A)(5)",
-      what_to_look_for: "Read (A)(5) under wet-niche luminaires — '18 inches below the normal water level'"
-    }
+      what_to_look_for:
+        "Read (A)(5) under wet-niche luminaires — '18 inches below the normal water level'",
+    },
   },
   {
     id: "230-001",
-    question: "What is the maximum number of service disconnecting means permitted for a single building?",
+    question:
+      "What is the maximum number of service disconnecting means permitted for a single building?",
     choices: ["2", "4", "6", "8"],
     correct_answer: "6",
-    explanation: "NEC 230.71(A) permits a maximum of six disconnects per service for each service or set of service-entrance conductors.",
+    explanation:
+      "NEC 230.71(A) permits a maximum of six disconnects per service for each service or set of service-entrance conductors.",
     nec_article: "230.71(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["service", "disconnect", "service entrance"],
     lookup_path: {
-      index_keywords: ["Service disconnecting means, number", "Disconnecting means, service"],
+      index_keywords: [
+        "Service disconnecting means, number",
+        "Disconnecting means, service",
+      ],
       index_entry: "Service disconnecting means — number of → 230.71",
       article_or_table: "230.71(A)",
-      what_to_look_for: "Read (A) — 'not more than six disconnects per service' for each set of service-entrance conductors"
-    }
+      what_to_look_for:
+        "Read (A) — 'not more than six disconnects per service' for each set of service-entrance conductors",
+    },
   },
   {
     id: "410-001",
-    question: "What is the minimum clearance required between a luminaire and the top of a clothes closet storage space?",
+    question:
+      "What is the minimum clearance required between a luminaire and the top of a clothes closet storage space?",
     choices: ["6 inches", "12 inches", "18 inches", "24 inches"],
     correct_answer: "12 inches",
-    explanation: "NEC 410.16(A)(2) requires a minimum clearance of 12 inches between a surface-mounted incandescent luminaire with a completely enclosed lamp and the nearest point of a storage space.",
+    explanation:
+      "NEC 410.16(A)(2) requires a minimum clearance of 12 inches between a surface-mounted incandescent luminaire with a completely enclosed lamp and the nearest point of a storage space.",
     nec_article: "410.16(A)(2)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["luminaires", "closet", "clearance"],
     lookup_path: {
-      index_keywords: ["Clothes closets, luminaires", "Luminaires, clothes closets"],
+      index_keywords: [
+        "Clothes closets, luminaires",
+        "Luminaires, clothes closets",
+      ],
       index_entry: "Clothes closets — luminaires → 410.16",
       article_or_table: "410.16(A)(2)",
-      what_to_look_for: "Read (A)(2) for surface-mounted enclosed luminaires — 12 inch clearance from storage space"
-    }
+      what_to_look_for:
+        "Read (A)(2) for surface-mounted enclosed luminaires — 12 inch clearance from storage space",
+    },
   },
   // ─── AMPACITY ───────────────────────────────────────────────────────────────
   {
     id: "310-002",
-    question: "What ampacity correction factor applies to a 75°C rated conductor installed where the ambient temperature is 40°C?",
+    question:
+      "What ampacity correction factor applies to a 75°C rated conductor installed where the ambient temperature is 40°C?",
     choices: ["0.82", "0.88", "0.91", "0.94"],
     correct_answer: "0.88",
-    explanation: "Table 310.15(B)(1) correction factors show that a 75°C rated conductor at 40°C ambient has a correction factor of 0.88, reducing its allowable ampacity.",
+    explanation:
+      "Table 310.15(B)(1) correction factors show that a 75°C rated conductor at 40°C ambient has a correction factor of 0.88, reducing its allowable ampacity.",
     nec_article: "Table 310.15(B)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
-    tags: ["ampacity", "correction factor", "ambient temperature", "conductors"],
+    tags: [
+      "ampacity",
+      "correction factor",
+      "ambient temperature",
+      "conductors",
+    ],
     lookup_path: {
-      index_keywords: ["Ampacity correction factors", "Temperature correction, conductors"],
-      index_entry: "Conductors — ampacity correction factors, ambient temperature → 310.15(B)(1)",
+      index_keywords: [
+        "Ampacity correction factors",
+        "Temperature correction, conductors",
+      ],
+      index_entry:
+        "Conductors — ampacity correction factors, ambient temperature → 310.15(B)(1)",
       article_or_table: "Table 310.15(B)(1)",
-      what_to_look_for: "Find the '40°C' ambient row → read the '75°C' conductor column → correction factor is 0.88"
-    }
+      what_to_look_for:
+        "Find the '40°C' ambient row → read the '75°C' conductor column → correction factor is 0.88",
+    },
   },
   {
     id: "310-003",
-    question: "What adjustment factor applies when 7 to 9 current-carrying conductors are bundled together in a single raceway?",
+    question:
+      "What adjustment factor applies when 7 to 9 current-carrying conductors are bundled together in a single raceway?",
     choices: ["50%", "60%", "70%", "80%"],
     correct_answer: "70%",
-    explanation: "Table 310.15(C)(1) requires a 70% adjustment factor when 7 to 9 current-carrying conductors are installed in a single raceway or cable.",
+    explanation:
+      "Table 310.15(C)(1) requires a 70% adjustment factor when 7 to 9 current-carrying conductors are installed in a single raceway or cable.",
     nec_article: "Table 310.15(C)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["ampacity", "adjustment factor", "bundling", "raceway"],
     lookup_path: {
-      index_keywords: ["Ampacity adjustment factors", "Conductors, bundled", "Raceway fill, adjustment"],
-      index_entry: "Conductors — adjustment factors, more than 3 current-carrying → 310.15(C)(1)",
+      index_keywords: [
+        "Ampacity adjustment factors",
+        "Conductors, bundled",
+        "Raceway fill, adjustment",
+      ],
+      index_entry:
+        "Conductors — adjustment factors, more than 3 current-carrying → 310.15(C)(1)",
       article_or_table: "Table 310.15(C)(1)",
-      what_to_look_for: "Find '7–9 conductors' row → read adjustment factor column → 70%"
-    }
+      what_to_look_for:
+        "Find '7–9 conductors' row → read adjustment factor column → 70%",
+    },
   },
   {
     id: "310-004",
-    question: "A 1/0 AWG copper THHN conductor installed in a conduit with 3 current-carrying conductors at 30°C ambient has an allowable ampacity of:",
+    question:
+      "A 1/0 AWG copper THHN conductor installed in a conduit with 3 current-carrying conductors at 30°C ambient has an allowable ampacity of:",
     choices: ["125 amps", "150 amps", "170 amps", "145 amps"],
     correct_answer: "150 amps",
-    explanation: "Table 310.16 lists 150 amperes for 1/0 AWG copper with 90°C insulation (THHN) with not more than 3 current-carrying conductors at 30°C ambient.",
+    explanation:
+      "Table 310.16 lists 150 amperes for 1/0 AWG copper with 90°C insulation (THHN) with not more than 3 current-carrying conductors at 30°C ambient.",
     nec_article: "Table 310.16",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["ampacity", "THHN", "conductors", "1/0 AWG"],
     lookup_path: {
       index_keywords: ["Ampacity", "Conductors, ampacity", "THHN"],
-      index_entry: "Conductors — ampacity, not more than 3 in raceway → Table 310.16",
+      index_entry:
+        "Conductors — ampacity, not more than 3 in raceway → Table 310.16",
       article_or_table: "Table 310.16",
-      what_to_look_for: "Find '1/0 AWG' row → read '90°C copper (THHN)' column → 150A"
-    }
+      what_to_look_for:
+        "Find '1/0 AWG' row → read '90°C copper (THHN)' column → 150A",
+    },
   },
 
   // ─── BOX FILL ───────────────────────────────────────────────────────────────
   {
     id: "314-002",
-    question: "How many cubic inches does each 12 AWG conductor count toward box fill calculations?",
-    choices: ["1.5 cubic inches", "2.0 cubic inches", "2.25 cubic inches", "2.5 cubic inches"],
+    question:
+      "How many cubic inches does each 12 AWG conductor count toward box fill calculations?",
+    choices: [
+      "1.5 cubic inches",
+      "2.0 cubic inches",
+      "2.25 cubic inches",
+      "2.5 cubic inches",
+    ],
     correct_answer: "2.25 cubic inches",
-    explanation: "Table 314.16(B) assigns a volume of 2.25 cubic inches for each 12 AWG conductor used in box fill calculations.",
+    explanation:
+      "Table 314.16(B) assigns a volume of 2.25 cubic inches for each 12 AWG conductor used in box fill calculations.",
     nec_article: "Table 314.16(B)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["box fill", "12 AWG", "volume", "conductors"],
     lookup_path: {
-      index_keywords: ["Box fill", "Conductor volume allowance", "Boxes, volume"],
-      index_entry: "Boxes — conductor volume allowances → 314.16(B) → Table 314.16(B)",
+      index_keywords: [
+        "Box fill",
+        "Conductor volume allowance",
+        "Boxes, volume",
+      ],
+      index_entry:
+        "Boxes — conductor volume allowances → 314.16(B) → Table 314.16(B)",
       article_or_table: "Table 314.16(B)",
-      what_to_look_for: "Find '12 AWG' row → read 'Volume Allowance' column → 2.25 in³"
-    }
+      what_to_look_for:
+        "Find '12 AWG' row → read 'Volume Allowance' column → 2.25 in³",
+    },
   },
   {
     id: "314-003",
-    question: "A device (receptacle) mounted in a box counts as how many conductors for box fill purposes?",
-    choices: ["One conductor of the largest gauge connected to it", "Two conductors of the largest gauge connected to it", "One conductor of the smallest gauge", "Zero — devices are not counted"],
+    question:
+      "A device (receptacle) mounted in a box counts as how many conductors for box fill purposes?",
+    choices: [
+      "One conductor of the largest gauge connected to it",
+      "Two conductors of the largest gauge connected to it",
+      "One conductor of the smallest gauge",
+      "Zero — devices are not counted",
+    ],
     correct_answer: "Two conductors of the largest gauge connected to it",
-    explanation: "NEC 314.16(B)(4) states that each yoke or strap containing one or more devices counts as two conductors based on the largest conductor connected to that device.",
+    explanation:
+      "NEC 314.16(B)(4) states that each yoke or strap containing one or more devices counts as two conductors based on the largest conductor connected to that device.",
     nec_article: "314.16(B)(4)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["box fill", "device", "receptacle", "yoke"],
     lookup_path: {
-      index_keywords: ["Box fill, devices", "Receptacle, box fill", "Device fill"],
+      index_keywords: [
+        "Box fill, devices",
+        "Receptacle, box fill",
+        "Device fill",
+      ],
       index_entry: "Boxes — conductor fill, device or equipment → 314.16(B)(4)",
       article_or_table: "314.16(B)(4)",
-      what_to_look_for: "Read (B)(4) — each yoke/strap = two conductors based on largest wire attached"
-    }
+      what_to_look_for:
+        "Read (B)(4) — each yoke/strap = two conductors based on largest wire attached",
+    },
   },
 
   // ─── GROUNDING ──────────────────────────────────────────────────────────────
   {
     id: "250-002",
-    question: "What is the minimum size copper equipment grounding conductor required for a circuit protected by a 60-ampere overcurrent device?",
+    question:
+      "What is the minimum size copper equipment grounding conductor required for a circuit protected by a 60-ampere overcurrent device?",
     choices: ["10 AWG", "8 AWG", "6 AWG", "4 AWG"],
     correct_answer: "10 AWG",
-    explanation: "Table 250.122 requires a minimum 10 AWG copper equipment grounding conductor for circuits protected by overcurrent devices rated up to 60 amperes.",
+    explanation:
+      "Table 250.122 requires a minimum 10 AWG copper equipment grounding conductor for circuits protected by overcurrent devices rated up to 60 amperes.",
     nec_article: "Table 250.122",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["grounding", "equipment grounding conductor", "EGC", "60 amp"],
     lookup_path: {
-      index_keywords: ["Equipment grounding conductors, size", "Grounding conductors, equipment"],
+      index_keywords: [
+        "Equipment grounding conductors, size",
+        "Grounding conductors, equipment",
+      ],
       index_entry: "Equipment grounding conductors — size → Table 250.122",
       article_or_table: "Table 250.122",
-      what_to_look_for: "Find '60A' row in the 'Rating of Automatic Overcurrent Device' column → copper EGC = 10 AWG"
-    }
+      what_to_look_for:
+        "Find '60A' row in the 'Rating of Automatic Overcurrent Device' column → copper EGC = 10 AWG",
+    },
   },
   {
     id: "250-003",
-    question: "Which of the following is NOT a listed grounding electrode under NEC Article 250?",
-    choices: ["Metal water pipe", "Concrete-encased electrode", "PVC conduit buried 30 inches", "Ground ring"],
+    question:
+      "Which of the following is NOT a listed grounding electrode under NEC Article 250?",
+    choices: [
+      "Metal water pipe",
+      "Concrete-encased electrode",
+      "PVC conduit buried 30 inches",
+      "Ground ring",
+    ],
     correct_answer: "PVC conduit buried 30 inches",
-    explanation: "NEC 250.52(A) lists acceptable grounding electrodes. PVC (non-metallic) conduit is not a conductor and cannot serve as a grounding electrode regardless of burial depth.",
+    explanation:
+      "NEC 250.52(A) lists acceptable grounding electrodes. PVC (non-metallic) conduit is not a conductor and cannot serve as a grounding electrode regardless of burial depth.",
     nec_article: "250.52(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
@@ -349,121 +487,169 @@ export const questionBank: QuestionCard[] = [
       index_keywords: ["Grounding electrodes, types", "Electrodes, grounding"],
       index_entry: "Grounding electrodes — types permitted → 250.52(A)",
       article_or_table: "250.52(A)",
-      what_to_look_for: "Read the list in (A)(1) through (A)(8) — PVC conduit is not listed; only metal/concrete/earth-contact electrodes qualify"
-    }
+      what_to_look_for:
+        "Read the list in (A)(1) through (A)(8) — PVC conduit is not listed; only metal/concrete/earth-contact electrodes qualify",
+    },
   },
   {
     id: "250-004",
-    question: "What is the maximum resistance permitted for a single ground rod electrode before a second electrode must be added?",
+    question:
+      "What is the maximum resistance permitted for a single ground rod electrode before a second electrode must be added?",
     choices: ["10 ohms", "25 ohms", "50 ohms", "100 ohms"],
     correct_answer: "25 ohms",
-    explanation: "NEC 250.53(A)(2) requires a second ground rod if the resistance of a single rod exceeds 25 ohms, unless the single rod is supplemented by another electrode.",
+    explanation:
+      "NEC 250.53(A)(2) requires a second ground rod if the resistance of a single rod exceeds 25 ohms, unless the single rod is supplemented by another electrode.",
     nec_article: "250.53(A)(2)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["grounding", "ground rod", "resistance", "electrode"],
     lookup_path: {
-      index_keywords: ["Ground rods, resistance", "Grounding electrode, resistance"],
-      index_entry: "Ground rods — resistance, supplemental electrode → 250.53(A)(2)",
+      index_keywords: [
+        "Ground rods, resistance",
+        "Grounding electrode, resistance",
+      ],
+      index_entry:
+        "Ground rods — resistance, supplemental electrode → 250.53(A)(2)",
       article_or_table: "250.53(A)(2)",
-      what_to_look_for: "Read (A)(2) — if single rod resistance exceeds 25 ohms, a second electrode is required"
-    }
+      what_to_look_for:
+        "Read (A)(2) — if single rod resistance exceeds 25 ohms, a second electrode is required",
+    },
   },
 
   // ─── MOTORS ─────────────────────────────────────────────────────────────────
   {
     id: "430-002",
-    question: "What is the full-load current for a 10 HP, 230-volt, single-phase AC motor?",
+    question:
+      "What is the full-load current for a 10 HP, 230-volt, single-phase AC motor?",
     choices: ["40 amps", "50 amps", "56 amps", "64 amps"],
     correct_answer: "50 amps",
-    explanation: "Table 430.248 lists the full-load current for a 10 HP, 230V single-phase motor as 50 amperes.",
+    explanation:
+      "Table 430.248 lists the full-load current for a 10 HP, 230V single-phase motor as 50 amperes.",
     nec_article: "Table 430.248",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["motors", "full-load current", "single-phase", "10 HP"],
     lookup_path: {
       index_keywords: ["Motors, full-load current", "Single-phase motors, FLC"],
-      index_entry: "Motors — full-load currents, single-phase AC → Table 430.248",
+      index_entry:
+        "Motors — full-load currents, single-phase AC → Table 430.248",
       article_or_table: "Table 430.248",
-      what_to_look_for: "Find '10 HP' row → read '230V' column → FLC = 50A"
-    }
+      what_to_look_for: "Find '10 HP' row → read '230V' column → FLC = 50A",
+    },
   },
   {
     id: "430-003",
-    question: "What is the minimum conductor ampacity required for a single motor branch circuit?",
-    choices: ["100% of motor FLC", "115% of motor FLC", "125% of motor FLC", "150% of motor FLC"],
+    question:
+      "What is the minimum conductor ampacity required for a single motor branch circuit?",
+    choices: [
+      "100% of motor FLC",
+      "115% of motor FLC",
+      "125% of motor FLC",
+      "150% of motor FLC",
+    ],
     correct_answer: "125% of motor FLC",
-    explanation: "NEC 430.22(A) requires motor branch-circuit conductors to have an ampacity of not less than 125% of the motor's full-load current rating.",
+    explanation:
+      "NEC 430.22(A) requires motor branch-circuit conductors to have an ampacity of not less than 125% of the motor's full-load current rating.",
     nec_article: "430.22(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["motors", "conductors", "branch circuit", "ampacity"],
     lookup_path: {
-      index_keywords: ["Motors, branch-circuit conductors", "Motor conductors, size"],
+      index_keywords: [
+        "Motors, branch-circuit conductors",
+        "Motor conductors, size",
+      ],
       index_entry: "Motors — branch-circuit conductors, single motor → 430.22",
       article_or_table: "430.22(A)",
-      what_to_look_for: "Read (A) — 'not less than 125 percent of the motor full-load current rating'"
-    }
+      what_to_look_for:
+        "Read (A) — 'not less than 125 percent of the motor full-load current rating'",
+    },
   },
   {
     id: "430-004",
-    question: "What is the maximum setting for an inverse time circuit breaker protecting a 3-phase, 460V, 25 HP squirrel-cage induction motor?",
+    question:
+      "What is the maximum setting for an inverse time circuit breaker protecting a 3-phase, 460V, 25 HP squirrel-cage induction motor?",
     choices: ["150%", "175%", "200%", "250%"],
     correct_answer: "250%",
-    explanation: "Table 430.52(C)(1) allows inverse time circuit breakers to be set at a maximum of 250% of motor FLC for squirrel-cage induction motors.",
+    explanation:
+      "Table 430.52(C)(1) allows inverse time circuit breakers to be set at a maximum of 250% of motor FLC for squirrel-cage induction motors.",
     nec_article: "Table 430.52(C)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["motors", "circuit breaker", "overcurrent", "3-phase"],
     lookup_path: {
-      index_keywords: ["Motors, overcurrent protection", "Circuit breakers, motor protection"],
-      index_entry: "Motors — branch-circuit short-circuit protection → 430.52 → Table 430.52(C)(1)",
+      index_keywords: [
+        "Motors, overcurrent protection",
+        "Circuit breakers, motor protection",
+      ],
+      index_entry:
+        "Motors — branch-circuit short-circuit protection → 430.52 → Table 430.52(C)(1)",
       article_or_table: "Table 430.52(C)(1)",
-      what_to_look_for: "Find 'Inverse time circuit breaker' row → read '% of Full-Load Current' column → 250%"
-    }
+      what_to_look_for:
+        "Find 'Inverse time circuit breaker' row → read '% of Full-Load Current' column → 250%",
+    },
   },
 
   // ─── DWELLING UNITS ─────────────────────────────────────────────────────────
   {
     id: "210-002",
-    question: "What is the minimum required height for a wall receptacle outlet in a dwelling unit?",
-    choices: ["No minimum height specified", "12 inches from floor", "18 inches from floor", "24 inches from floor"],
+    question:
+      "What is the minimum required height for a wall receptacle outlet in a dwelling unit?",
+    choices: [
+      "No minimum height specified",
+      "12 inches from floor",
+      "18 inches from floor",
+      "24 inches from floor",
+    ],
     correct_answer: "No minimum height specified",
-    explanation: "The NEC does not specify a minimum height for receptacle outlets in dwelling units. NEC 210.52 specifies spacing requirements but not mounting height.",
+    explanation:
+      "The NEC does not specify a minimum height for receptacle outlets in dwelling units. NEC 210.52 specifies spacing requirements but not mounting height.",
     nec_article: "210.52",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["dwelling", "receptacles", "height", "210.52"],
     lookup_path: {
-      index_keywords: ["Receptacles, dwelling units", "Dwelling units, receptacle outlets"],
+      index_keywords: [
+        "Receptacles, dwelling units",
+        "Dwelling units, receptacle outlets",
+      ],
       index_entry: "Receptacles — dwelling units, required → 210.52",
       article_or_table: "210.52",
-      what_to_look_for: "Read 210.52 — spacing requirements are specified but no minimum floor height is stated"
-    }
+      what_to_look_for:
+        "Read 210.52 — spacing requirements are specified but no minimum floor height is stated",
+    },
   },
   {
     id: "210-003",
-    question: "In a dwelling unit, what is the maximum spacing between receptacle outlets along a wall in a general living area?",
+    question:
+      "In a dwelling unit, what is the maximum spacing between receptacle outlets along a wall in a general living area?",
     choices: ["6 feet", "10 feet", "12 feet", "15 feet"],
     correct_answer: "12 feet",
-    explanation: "NEC 210.52(A)(1) requires that no point along the floor line in any wall space be more than 6 feet from a receptacle outlet, which means outlets must be spaced no more than 12 feet apart.",
+    explanation:
+      "NEC 210.52(A)(1) requires that no point along the floor line in any wall space be more than 6 feet from a receptacle outlet, which means outlets must be spaced no more than 12 feet apart.",
     nec_article: "210.52(A)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["dwelling", "receptacles", "spacing", "living area"],
     lookup_path: {
-      index_keywords: ["Receptacles, spacing", "Dwelling units, receptacle spacing"],
+      index_keywords: [
+        "Receptacles, spacing",
+        "Dwelling units, receptacle spacing",
+      ],
       index_entry: "Receptacles — dwelling units, spacing → 210.52(A)(1)",
       article_or_table: "210.52(A)(1)",
-      what_to_look_for: "Read (A)(1) — 'no point along the floor line shall be more than 6 ft from a receptacle' = max 12 ft between outlets"
-    }
+      what_to_look_for:
+        "Read (A)(1) — 'no point along the floor line shall be more than 6 ft from a receptacle' = max 12 ft between outlets",
+    },
   },
   {
     id: "210-004",
-    question: "How many 20-ampere circuits are required for the laundry area of a dwelling unit?",
+    question:
+      "How many 20-ampere circuits are required for the laundry area of a dwelling unit?",
     choices: ["None required", "One", "Two", "Three"],
     correct_answer: "One",
-    explanation: "NEC 210.11(C)(2) requires at least one 20-ampere branch circuit for the laundry receptacle outlet(s) in a dwelling unit.",
+    explanation:
+      "NEC 210.11(C)(2) requires at least one 20-ampere branch circuit for the laundry receptacle outlet(s) in a dwelling unit.",
     nec_article: "210.11(C)(2)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
@@ -472,258 +658,372 @@ export const questionBank: QuestionCard[] = [
       index_keywords: ["Laundry branch circuit", "Dwelling units, laundry"],
       index_entry: "Laundry — branch circuit, dwelling units → 210.11(C)(2)",
       article_or_table: "210.11(C)(2)",
-      what_to_look_for: "Read (C)(2) — 'at least one additional 20-ampere branch circuit shall be provided for laundry receptacle outlets'"
-    }
+      what_to_look_for:
+        "Read (C)(2) — 'at least one additional 20-ampere branch circuit shall be provided for laundry receptacle outlets'",
+    },
   },
   {
     id: "210-005",
-    question: "GFCI protection is required for receptacles installed within how many feet of the outside edge of a dwelling unit bathroom sink?",
-    choices: ["3 feet", "6 feet", "All bathroom receptacles regardless of distance", "Only those within 12 inches"],
+    question:
+      "GFCI protection is required for receptacles installed within how many feet of the outside edge of a dwelling unit bathroom sink?",
+    choices: [
+      "3 feet",
+      "6 feet",
+      "All bathroom receptacles regardless of distance",
+      "Only those within 12 inches",
+    ],
     correct_answer: "All bathroom receptacles regardless of distance",
-    explanation: "NEC 210.8(A)(1) requires GFCI protection for all receptacles installed in bathrooms of dwelling units, regardless of distance from the sink.",
+    explanation:
+      "NEC 210.8(A)(1) requires GFCI protection for all receptacles installed in bathrooms of dwelling units, regardless of distance from the sink.",
     nec_article: "210.8(A)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["GFCI", "bathroom", "dwelling", "receptacles"],
     lookup_path: {
-      index_keywords: ["GFCI protection, bathrooms", "Ground-fault circuit-interrupter, bathrooms"],
-      index_entry: "Ground-fault circuit-interrupter protection — dwelling units, bathrooms → 210.8(A)(1)",
+      index_keywords: [
+        "GFCI protection, bathrooms",
+        "Ground-fault circuit-interrupter, bathrooms",
+      ],
+      index_entry:
+        "Ground-fault circuit-interrupter protection — dwelling units, bathrooms → 210.8(A)(1)",
       article_or_table: "210.8(A)(1)",
-      what_to_look_for: "Read (A)(1) — 'all 125-volt through 250-volt receptacles installed in bathrooms' — no distance limitation"
-    }
+      what_to_look_for:
+        "Read (A)(1) — 'all 125-volt through 250-volt receptacles installed in bathrooms' — no distance limitation",
+    },
   },
 
   // ─── SERVICE ENTRANCE ────────────────────────────────────────────────────────
   {
     id: "230-002",
-    question: "What is the minimum clearance above a residential driveway for overhead service-drop conductors not exceeding 600 volts?",
+    question:
+      "What is the minimum clearance above a residential driveway for overhead service-drop conductors not exceeding 600 volts?",
     choices: ["10 feet", "12 feet", "15 feet", "18 feet"],
     correct_answer: "12 feet",
-    explanation: "NEC 230.24(B)(1) requires a minimum clearance of 12 feet above residential driveways for service-drop conductors rated 600 volts or less.",
+    explanation:
+      "NEC 230.24(B)(1) requires a minimum clearance of 12 feet above residential driveways for service-drop conductors rated 600 volts or less.",
     nec_article: "230.24(B)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["service entrance", "service drop", "clearance", "driveway"],
     lookup_path: {
-      index_keywords: ["Service drop, clearances", "Overhead conductors, clearances", "Driveway clearance"],
-      index_entry: "Service-drop conductors — clearances, above ground → 230.24(B)",
+      index_keywords: [
+        "Service drop, clearances",
+        "Overhead conductors, clearances",
+        "Driveway clearance",
+      ],
+      index_entry:
+        "Service-drop conductors — clearances, above ground → 230.24(B)",
       article_or_table: "230.24(B)(1)",
-      what_to_look_for: "Find (B)(1) — residential driveways → 12 ft minimum clearance"
-    }
+      what_to_look_for:
+        "Find (B)(1) — residential driveways → 12 ft minimum clearance",
+    },
   },
   {
     id: "230-003",
-    question: "What is the minimum size copper service-entrance conductor permitted for a 200-ampere residential service?",
+    question:
+      "What is the minimum size copper service-entrance conductor permitted for a 200-ampere residential service?",
     choices: ["2/0 AWG", "3/0 AWG", "4/0 AWG", "250 kcmil"],
     correct_answer: "2/0 AWG",
-    explanation: "Table 310.16 shows that 2/0 AWG copper THWN-2 has an ampacity of 195A at 75°C. However, for a 200A service, 2/0 AWG copper is the minimum per 230.42 when using 90°C rated conductors at 75°C terminal rating.",
+    explanation:
+      "Table 310.16 shows that 2/0 AWG copper THWN-2 has an ampacity of 195A at 75°C. However, for a 200A service, 2/0 AWG copper is the minimum per 230.42 when using 90°C rated conductors at 75°C terminal rating.",
     nec_article: "230.42",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["service entrance", "conductor size", "200 amp", "residential"],
     lookup_path: {
-      index_keywords: ["Service-entrance conductors, size", "Service conductors, minimum size"],
-      index_entry: "Service-entrance conductors — minimum size → 230.42 → Table 310.16",
+      index_keywords: [
+        "Service-entrance conductors, size",
+        "Service conductors, minimum size",
+      ],
+      index_entry:
+        "Service-entrance conductors — minimum size → 230.42 → Table 310.16",
       article_or_table: "Table 310.16",
-      what_to_look_for: "Find '2/0 AWG' row → read '75°C copper' column → 175A; check 90°C column → 195A — use 75°C terminal rating per 110.14(C)"
-    }
+      what_to_look_for:
+        "Find '2/0 AWG' row → read '75°C copper' column → 175A; check 90°C column → 195A — use 75°C terminal rating per 110.14(C)",
+    },
   },
 
   // ─── TRANSFORMERS ────────────────────────────────────────────────────────────
   {
     id: "450-002",
-    question: "What is the maximum overcurrent protection for the primary of a transformer with a primary current of less than 2 amperes?",
+    question:
+      "What is the maximum overcurrent protection for the primary of a transformer with a primary current of less than 2 amperes?",
     choices: ["125%", "167%", "300%", "No protection required"],
     correct_answer: "300%",
-    explanation: "NEC 450.3(B) allows primary overcurrent protection up to 300% of rated primary current when the primary current is less than 2 amperes.",
+    explanation:
+      "NEC 450.3(B) allows primary overcurrent protection up to 300% of rated primary current when the primary current is less than 2 amperes.",
     nec_article: "Table 450.3(B)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["transformers", "overcurrent", "primary protection", "low current"],
     lookup_path: {
-      index_keywords: ["Transformers, overcurrent protection", "Overcurrent protection, transformers"],
-      index_entry: "Transformers — overcurrent protection, 600V or less → 450.3(B) → Table 450.3(B)",
+      index_keywords: [
+        "Transformers, overcurrent protection",
+        "Overcurrent protection, transformers",
+      ],
+      index_entry:
+        "Transformers — overcurrent protection, 600V or less → 450.3(B) → Table 450.3(B)",
       article_or_table: "Table 450.3(B)",
-      what_to_look_for: "Find row for 'Primary < 2A, no secondary protection' → maximum = 300%"
-    }
+      what_to_look_for:
+        "Find row for 'Primary < 2A, no secondary protection' → maximum = 300%",
+    },
   },
   {
     id: "450-003",
-    question: "What is the minimum working clearance required in front of a transformer rated over 600 volts?",
+    question:
+      "What is the minimum working clearance required in front of a transformer rated over 600 volts?",
     choices: ["3 feet", "4 feet", "6 feet", "Depends on voltage class"],
     correct_answer: "Depends on voltage class",
-    explanation: "NEC 110.34(A) specifies working clearances for equipment over 600V based on voltage class and condition of installation — ranging from 3 feet to 10 feet depending on voltage and exposure.",
+    explanation:
+      "NEC 110.34(A) specifies working clearances for equipment over 600V based on voltage class and condition of installation — ranging from 3 feet to 10 feet depending on voltage and exposure.",
     nec_article: "110.34(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["transformers", "working clearance", "high voltage", "110.34"],
     lookup_path: {
-      index_keywords: ["Working clearances, over 600V", "Clearances, electrical equipment"],
-      index_entry: "Working clearances — over 600 volts → 110.34(A) → Table 110.34(A)",
+      index_keywords: [
+        "Working clearances, over 600V",
+        "Clearances, electrical equipment",
+      ],
+      index_entry:
+        "Working clearances — over 600 volts → 110.34(A) → Table 110.34(A)",
       article_or_table: "Table 110.34(A)",
-      what_to_look_for: "Find voltage range row and installation condition column → read minimum clearance distance"
-    }
+      what_to_look_for:
+        "Find voltage range row and installation condition column → read minimum clearance distance",
+    },
   },
 
   // ─── HAZARDOUS LOCATIONS ─────────────────────────────────────────────────────
   {
     id: "500-002",
-    question: "A Class I, Division 2 location is one where ignitable concentrations of flammable gases:",
+    question:
+      "A Class I, Division 2 location is one where ignitable concentrations of flammable gases:",
     choices: [
       "Exist continuously under normal operating conditions",
       "Are handled, processed, or used but are normally in closed containers",
       "Are present only during abnormal conditions such as container failure",
-      "Do not exist"
+      "Do not exist",
     ],
-    correct_answer: "Are present only during abnormal conditions such as container failure",
-    explanation: "NEC 500.5(B)(2) defines Class I, Division 2 as a location where ignitable concentrations of flammable gases are handled but are normally confined, and could become hazardous only through accidental rupture or breakdown.",
+    correct_answer:
+      "Are present only during abnormal conditions such as container failure",
+    explanation:
+      "NEC 500.5(B)(2) defines Class I, Division 2 as a location where ignitable concentrations of flammable gases are handled but are normally confined, and could become hazardous only through accidental rupture or breakdown.",
     nec_article: "500.5(B)(2)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["hazardous locations", "Class I", "Division 2", "flammable gases"],
     lookup_path: {
-      index_keywords: ["Class I locations, Division 2", "Hazardous locations, Division 2"],
-      index_entry: "Hazardous (classified) locations — Class I, Division 2 → 500.5(B)(2)",
+      index_keywords: [
+        "Class I locations, Division 2",
+        "Hazardous locations, Division 2",
+      ],
+      index_entry:
+        "Hazardous (classified) locations — Class I, Division 2 → 500.5(B)(2)",
       article_or_table: "500.5(B)(2)",
-      what_to_look_for: "Read (B)(2) — abnormal conditions only; normally confined in closed containers or systems"
-    }
+      what_to_look_for:
+        "Read (B)(2) — abnormal conditions only; normally confined in closed containers or systems",
+    },
   },
   {
     id: "500-003",
     question: "Class II locations involve which type of hazardous material?",
-    choices: ["Flammable gases or vapors", "Combustible dust", "Ignitable fibers", "Flammable liquids"],
+    choices: [
+      "Flammable gases or vapors",
+      "Combustible dust",
+      "Ignitable fibers",
+      "Flammable liquids",
+    ],
     correct_answer: "Combustible dust",
-    explanation: "NEC 500.5(C) defines Class II locations as those that are hazardous because of the presence of combustible dust.",
+    explanation:
+      "NEC 500.5(C) defines Class II locations as those that are hazardous because of the presence of combustible dust.",
     nec_article: "500.5(C)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["hazardous locations", "Class II", "combustible dust"],
     lookup_path: {
-      index_keywords: ["Class II locations", "Combustible dust, hazardous locations"],
+      index_keywords: [
+        "Class II locations",
+        "Combustible dust, hazardous locations",
+      ],
       index_entry: "Hazardous (classified) locations — Class II → 500.5(C)",
       article_or_table: "500.5(C)",
-      what_to_look_for: "Read (C) — 'Class II locations are those that are hazardous because of the presence of combustible dust'"
-    }
+      what_to_look_for:
+        "Read (C) — 'Class II locations are those that are hazardous because of the presence of combustible dust'",
+    },
   },
 
   // ─── GFCI / AFCI ─────────────────────────────────────────────────────────────
   {
     id: "210-006",
-    question: "AFCI protection is required for branch circuits supplying outlets in which rooms of a dwelling unit?",
+    question:
+      "AFCI protection is required for branch circuits supplying outlets in which rooms of a dwelling unit?",
     choices: [
       "Kitchen and bathrooms only",
       "All 120-volt, 15- and 20-ampere branch circuits in all rooms",
       "Bedrooms only",
-      "Garage and outdoors only"
+      "Garage and outdoors only",
     ],
-    correct_answer: "All 120-volt, 15- and 20-ampere branch circuits in all rooms",
-    explanation: "NEC 210.12(A) requires AFCI protection for all 120-volt, 15- and 20-ampere branch circuits supplying outlets or devices installed in dwelling units.",
+    correct_answer:
+      "All 120-volt, 15- and 20-ampere branch circuits in all rooms",
+    explanation:
+      "NEC 210.12(A) requires AFCI protection for all 120-volt, 15- and 20-ampere branch circuits supplying outlets or devices installed in dwelling units.",
     nec_article: "210.12(A)",
     nec_versions: ["2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["AFCI", "arc-fault", "dwelling", "branch circuits"],
     lookup_path: {
-      index_keywords: ["Arc-fault circuit-interrupter protection", "AFCI, dwelling units"],
-      index_entry: "Arc-fault circuit-interrupter protection — dwelling units → 210.12(A)",
+      index_keywords: [
+        "Arc-fault circuit-interrupter protection",
+        "AFCI, dwelling units",
+      ],
+      index_entry:
+        "Arc-fault circuit-interrupter protection — dwelling units → 210.12(A)",
       article_or_table: "210.12(A)",
-      what_to_look_for: "Read (A) — 'all 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets or devices'"
-    }
+      what_to_look_for:
+        "Read (A) — 'all 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets or devices'",
+    },
   },
   {
     id: "210-007",
-    question: "GFCI protection is required for 125-volt receptacles installed outdoors at a dwelling unit at grade level and accessible to the public?",
-    choices: ["Only if within 20 feet of a water source", "Yes, all such receptacles", "Only in wet locations", "No, only indoor receptacles require GFCI"],
+    question:
+      "GFCI protection is required for 125-volt receptacles installed outdoors at a dwelling unit at grade level and accessible to the public?",
+    choices: [
+      "Only if within 20 feet of a water source",
+      "Yes, all such receptacles",
+      "Only in wet locations",
+      "No, only indoor receptacles require GFCI",
+    ],
     correct_answer: "Yes, all such receptacles",
-    explanation: "NEC 210.8(A)(3) requires GFCI protection for all 125-volt through 250-volt receptacles installed outdoors at dwelling units where the receptacles are accessible to persons from grade level.",
+    explanation:
+      "NEC 210.8(A)(3) requires GFCI protection for all 125-volt through 250-volt receptacles installed outdoors at dwelling units where the receptacles are accessible to persons from grade level.",
     nec_article: "210.8(A)(3)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["GFCI", "outdoor", "dwelling", "receptacles"],
     lookup_path: {
-      index_keywords: ["GFCI protection, outdoors", "Outdoor receptacles, GFCI"],
-      index_entry: "Ground-fault circuit-interrupter protection — dwelling units, outdoors → 210.8(A)(3)",
+      index_keywords: [
+        "GFCI protection, outdoors",
+        "Outdoor receptacles, GFCI",
+      ],
+      index_entry:
+        "Ground-fault circuit-interrupter protection — dwelling units, outdoors → 210.8(A)(3)",
       article_or_table: "210.8(A)(3)",
-      what_to_look_for: "Read (A)(3) — 'outdoors' with 'access from grade level' = GFCI required for all such receptacles"
-    }
+      what_to_look_for:
+        "Read (A)(3) — 'outdoors' with 'access from grade level' = GFCI required for all such receptacles",
+    },
   },
   {
     id: "210-008",
-    question: "GFCI protection is required for receptacles installed in a commercial kitchen within how many feet of a sink?",
-    choices: ["3 feet", "6 feet", "10 feet", "All kitchen receptacles regardless of distance"],
+    question:
+      "GFCI protection is required for receptacles installed in a commercial kitchen within how many feet of a sink?",
+    choices: [
+      "3 feet",
+      "6 feet",
+      "10 feet",
+      "All kitchen receptacles regardless of distance",
+    ],
     correct_answer: "6 feet",
-    explanation: "NEC 210.8(B)(2) requires GFCI protection for receptacles installed within 6 feet of the outside edge of a sink in commercial kitchens and similar areas.",
+    explanation:
+      "NEC 210.8(B)(2) requires GFCI protection for receptacles installed within 6 feet of the outside edge of a sink in commercial kitchens and similar areas.",
     nec_article: "210.8(B)(2)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["GFCI", "commercial kitchen", "sink", "receptacles"],
     lookup_path: {
-      index_keywords: ["GFCI protection, commercial", "Kitchen receptacles, GFCI"],
-      index_entry: "Ground-fault circuit-interrupter protection — other than dwelling units → 210.8(B)(2)",
+      index_keywords: [
+        "GFCI protection, commercial",
+        "Kitchen receptacles, GFCI",
+      ],
+      index_entry:
+        "Ground-fault circuit-interrupter protection — other than dwelling units → 210.8(B)(2)",
       article_or_table: "210.8(B)(2)",
-      what_to_look_for: "Read (B)(2) — 'within 6 feet of the outside edge of a sink'"
-    }
+      what_to_look_for:
+        "Read (B)(2) — 'within 6 feet of the outside edge of a sink'",
+    },
   },
 
   // ─── OVERCURRENT PROTECTION ──────────────────────────────────────────────────
   {
     id: "240-002",
-    question: "What is the maximum overcurrent protection permitted for a 10 AWG copper conductor with 60°C insulation?",
+    question:
+      "What is the maximum overcurrent protection permitted for a 10 AWG copper conductor with 60°C insulation?",
     choices: ["20 amperes", "30 amperes", "40 amperes", "50 amperes"],
     correct_answer: "30 amperes",
-    explanation: "Table 310.16 lists 30 amperes as the ampacity of 10 AWG copper at 60°C. Per 240.4(D), 10 AWG copper conductors shall not be protected by overcurrent devices rated more than 30 amperes.",
+    explanation:
+      "Table 310.16 lists 30 amperes as the ampacity of 10 AWG copper at 60°C. Per 240.4(D), 10 AWG copper conductors shall not be protected by overcurrent devices rated more than 30 amperes.",
     nec_article: "240.4(D)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["overcurrent protection", "10 AWG", "conductor protection", "240.4"],
     lookup_path: {
-      index_keywords: ["Overcurrent protection, small conductors", "Conductors, overcurrent protection"],
+      index_keywords: [
+        "Overcurrent protection, small conductors",
+        "Conductors, overcurrent protection",
+      ],
       index_entry: "Overcurrent protection — small conductors → 240.4(D)",
       article_or_table: "240.4(D)",
-      what_to_look_for: "Read (D) — 10 AWG copper = 30A maximum overcurrent device"
-    }
+      what_to_look_for:
+        "Read (D) — 10 AWG copper = 30A maximum overcurrent device",
+    },
   },
   {
     id: "240-003",
-    question: "Where a fuse or circuit breaker rating does not correspond to a standard size, the next higher standard rating is permitted provided the overcurrent device does not exceed:",
+    question:
+      "Where a fuse or circuit breaker rating does not correspond to a standard size, the next higher standard rating is permitted provided the overcurrent device does not exceed:",
     choices: ["100 amperes", "200 amperes", "400 amperes", "800 amperes"],
     correct_answer: "800 amperes",
-    explanation: "NEC 240.4(B) permits the next higher standard overcurrent device rating above the conductor ampacity, provided the device rating does not exceed 800 amperes.",
+    explanation:
+      "NEC 240.4(B) permits the next higher standard overcurrent device rating above the conductor ampacity, provided the device rating does not exceed 800 amperes.",
     nec_article: "240.4(B)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["overcurrent protection", "next higher rating", "240.4(B)"],
     lookup_path: {
-      index_keywords: ["Overcurrent protection, next higher rating", "Circuit breakers, next higher size"],
-      index_entry: "Overcurrent protection — next higher standard device rating → 240.4(B)",
+      index_keywords: [
+        "Overcurrent protection, next higher rating",
+        "Circuit breakers, next higher size",
+      ],
+      index_entry:
+        "Overcurrent protection — next higher standard device rating → 240.4(B)",
       article_or_table: "240.4(B)",
-      what_to_look_for: "Read (B) — next higher standard rating permitted only if device does not exceed 800A"
-    }
+      what_to_look_for:
+        "Read (B) — next higher standard rating permitted only if device does not exceed 800A",
+    },
   },
 
   // ─── CONDUIT FILL ────────────────────────────────────────────────────────────
   {
     id: "358-001",
-    question: "What is the maximum percent fill for a conduit containing 3 or more conductors?",
+    question:
+      "What is the maximum percent fill for a conduit containing 3 or more conductors?",
     choices: ["31%", "40%", "53%", "60%"],
     correct_answer: "40%",
-    explanation: "Chapter 9, Table 1 limits conduit fill to 40% of the cross-sectional area of the conduit when 3 or more conductors are installed.",
+    explanation:
+      "Chapter 9, Table 1 limits conduit fill to 40% of the cross-sectional area of the conduit when 3 or more conductors are installed.",
     nec_article: "Chapter 9, Table 1",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["conduit fill", "raceway", "conductors", "Chapter 9"],
     lookup_path: {
-      index_keywords: ["Conduit fill", "Raceway fill", "Conductors, conduit fill"],
+      index_keywords: [
+        "Conduit fill",
+        "Raceway fill",
+        "Conductors, conduit fill",
+      ],
       index_entry: "Conduit fill — percent fill allowed → Chapter 9, Table 1",
       article_or_table: "Chapter 9, Table 1",
-      what_to_look_for: "Find '3 or more conductors' row → read '% of Cross-Sectional Area' column → 40%"
-    }
+      what_to_look_for:
+        "Find '3 or more conductors' row → read '% of Cross-Sectional Area' column → 40%",
+    },
   },
   {
     id: "358-002",
-    question: "What is the maximum percent fill for a conduit containing only 1 conductor?",
+    question:
+      "What is the maximum percent fill for a conduit containing only 1 conductor?",
     choices: ["31%", "40%", "53%", "60%"],
     correct_answer: "53%",
-    explanation: "Chapter 9, Table 1 allows a single conductor to fill up to 53% of the conduit cross-sectional area.",
+    explanation:
+      "Chapter 9, Table 1 allows a single conductor to fill up to 53% of the conduit cross-sectional area.",
     nec_article: "Chapter 9, Table 1",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
@@ -732,15 +1032,18 @@ export const questionBank: QuestionCard[] = [
       index_keywords: ["Conduit fill, single conductor", "Raceway fill"],
       index_entry: "Conduit fill — 1 conductor → Chapter 9, Table 1",
       article_or_table: "Chapter 9, Table 1",
-      what_to_look_for: "Find '1 conductor' row → read '% of Cross-Sectional Area' column → 53%"
-    }
+      what_to_look_for:
+        "Find '1 conductor' row → read '% of Cross-Sectional Area' column → 53%",
+    },
   },
   {
     id: "358-003",
-    question: "What is the trade size of the smallest EMT conduit permitted to contain three 12 AWG THHN conductors?",
+    question:
+      "What is the trade size of the smallest EMT conduit permitted to contain three 12 AWG THHN conductors?",
     choices: ["1/2 inch", "3/4 inch", "1 inch", "1-1/4 inch"],
     correct_answer: "1/2 inch",
-    explanation: "Annex C, Table C.1 shows that 1/2 inch EMT can contain up to 9 conductors of 12 AWG THHN, so three conductors fit within the 40% fill limit.",
+    explanation:
+      "Annex C, Table C.1 shows that 1/2 inch EMT can contain up to 9 conductors of 12 AWG THHN, so three conductors fit within the 40% fill limit.",
     nec_article: "Annex C, Table C.1",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
@@ -749,189 +1052,269 @@ export const questionBank: QuestionCard[] = [
       index_keywords: ["EMT conduit fill", "Conduit fill, THHN", "Annex C"],
       index_entry: "Conduit fill — EMT, THHN conductors → Annex C, Table C.1",
       article_or_table: "Annex C, Table C.1",
-      what_to_look_for: "Find '12 AWG THHN' row → read '1/2 inch EMT' column → max conductors = 9; three conductors fit"
-    }
+      what_to_look_for:
+        "Find '12 AWG THHN' row → read '1/2 inch EMT' column → max conductors = 9; three conductors fit",
+    },
   },
 
   // ─── WORKING CLEARANCES ──────────────────────────────────────────────────────
   {
     id: "110-001",
-    question: "What is the minimum working clearance in front of a 120/240-volt panelboard installed in a dwelling unit (Condition 1)?",
+    question:
+      "What is the minimum working clearance in front of a 120/240-volt panelboard installed in a dwelling unit (Condition 1)?",
     choices: ["2 feet", "2.5 feet", "3 feet", "3.5 feet"],
     correct_answer: "3 feet",
-    explanation: "Table 110.26(A)(1) requires a minimum working clearance of 3 feet in front of electrical equipment rated 0–150 volts to ground under Condition 1 (exposed live parts on one side, no live or grounded parts on the other).",
+    explanation:
+      "Table 110.26(A)(1) requires a minimum working clearance of 3 feet in front of electrical equipment rated 0–150 volts to ground under Condition 1 (exposed live parts on one side, no live or grounded parts on the other).",
     nec_article: "Table 110.26(A)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["working clearances", "panelboard", "110.26", "dwelling"],
     lookup_path: {
-      index_keywords: ["Working clearances, electrical equipment", "Clearances, panelboard"],
-      index_entry: "Working clearances — electrical equipment → 110.26(A)(1) → Table 110.26(A)(1)",
+      index_keywords: [
+        "Working clearances, electrical equipment",
+        "Clearances, panelboard",
+      ],
+      index_entry:
+        "Working clearances — electrical equipment → 110.26(A)(1) → Table 110.26(A)(1)",
       article_or_table: "Table 110.26(A)(1)",
-      what_to_look_for: "Find '0–150V to ground' row → 'Condition 1' column → 3 ft minimum"
-    }
+      what_to_look_for:
+        "Find '0–150V to ground' row → 'Condition 1' column → 3 ft minimum",
+    },
   },
   {
     id: "110-002",
-    question: "What is the minimum headroom required for working spaces about electrical equipment rated 600 volts or less?",
+    question:
+      "What is the minimum headroom required for working spaces about electrical equipment rated 600 volts or less?",
     choices: ["5.5 feet", "6 feet", "6.5 feet", "7 feet"],
     correct_answer: "6.5 feet",
-    explanation: "NEC 110.26(A)(3) requires a minimum headroom of 6.5 feet (2.0 m) for working spaces about electrical equipment rated 600 volts or less.",
+    explanation:
+      "NEC 110.26(A)(3) requires a minimum headroom of 6.5 feet (2.0 m) for working spaces about electrical equipment rated 600 volts or less.",
     nec_article: "110.26(A)(3)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["working clearances", "headroom", "110.26"],
     lookup_path: {
-      index_keywords: ["Headroom, electrical equipment", "Working clearances, headroom"],
+      index_keywords: [
+        "Headroom, electrical equipment",
+        "Working clearances, headroom",
+      ],
       index_entry: "Working clearances — headroom → 110.26(A)(3)",
       article_or_table: "110.26(A)(3)",
-      what_to_look_for: "Read (A)(3) — 'minimum headroom of 6½ ft (2.0 m)'"
-    }
+      what_to_look_for: "Read (A)(3) — 'minimum headroom of 6½ ft (2.0 m)'",
+    },
   },
   {
     id: "110-003",
-    question: "What is the minimum width of the working space in front of electrical equipment rated 600 volts or less?",
-    choices: ["24 inches", "30 inches", "36 inches", "The width of the equipment or 30 inches, whichever is greater"],
-    correct_answer: "The width of the equipment or 30 inches, whichever is greater",
-    explanation: "NEC 110.26(A)(2) requires the working space width to be the width of the equipment or 30 inches, whichever is greater.",
+    question:
+      "What is the minimum width of the working space in front of electrical equipment rated 600 volts or less?",
+    choices: [
+      "24 inches",
+      "30 inches",
+      "36 inches",
+      "The width of the equipment or 30 inches, whichever is greater",
+    ],
+    correct_answer:
+      "The width of the equipment or 30 inches, whichever is greater",
+    explanation:
+      "NEC 110.26(A)(2) requires the working space width to be the width of the equipment or 30 inches, whichever is greater.",
     nec_article: "110.26(A)(2)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["working clearances", "width", "110.26"],
     lookup_path: {
-      index_keywords: ["Working clearances, width", "Electrical equipment, working space"],
+      index_keywords: [
+        "Working clearances, width",
+        "Electrical equipment, working space",
+      ],
       index_entry: "Working clearances — width of working space → 110.26(A)(2)",
       article_or_table: "110.26(A)(2)",
-      what_to_look_for: "Read (A)(2) — 'the width of the equipment or 30 in., whichever is greater'"
-    }
+      what_to_look_for:
+        "Read (A)(2) — 'the width of the equipment or 30 in., whichever is greater'",
+    },
   },
 
   // ─── LOAD CALCULATIONS ───────────────────────────────────────────────────────
   {
     id: "220-001",
-    question: "What is the general lighting load in volt-amperes per square foot for a dwelling unit?",
+    question:
+      "What is the general lighting load in volt-amperes per square foot for a dwelling unit?",
     choices: ["1 VA/sq ft", "2 VA/sq ft", "3 VA/sq ft", "3.5 VA/sq ft"],
     correct_answer: "3 VA/sq ft",
-    explanation: "Table 220.12 specifies a general lighting load of 3 volt-amperes per square foot for dwelling units.",
+    explanation:
+      "Table 220.12 specifies a general lighting load of 3 volt-amperes per square foot for dwelling units.",
     nec_article: "Table 220.12",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["load calculations", "dwelling", "general lighting", "VA per sq ft"],
     lookup_path: {
-      index_keywords: ["General lighting loads", "Load calculations, dwelling", "Volt-amperes per square foot"],
+      index_keywords: [
+        "General lighting loads",
+        "Load calculations, dwelling",
+        "Volt-amperes per square foot",
+      ],
       index_entry: "General lighting loads — by occupancy → Table 220.12",
       article_or_table: "Table 220.12",
-      what_to_look_for: "Find 'Dwelling units' row → read 'Unit Load (VA/ft²)' column → 3 VA/ft²"
-    }
+      what_to_look_for:
+        "Find 'Dwelling units' row → read 'Unit Load (VA/ft²)' column → 3 VA/ft²",
+    },
   },
   {
     id: "220-002",
-    question: "What demand factor applies to the first 3,000 VA of lighting load in a dwelling unit load calculation?",
+    question:
+      "What demand factor applies to the first 3,000 VA of lighting load in a dwelling unit load calculation?",
     choices: ["50%", "75%", "100%", "35%"],
     correct_answer: "100%",
-    explanation: "Table 220.42 applies a 100% demand factor to the first 3,000 VA of lighting load in a dwelling unit.",
+    explanation:
+      "Table 220.42 applies a 100% demand factor to the first 3,000 VA of lighting load in a dwelling unit.",
     nec_article: "Table 220.42",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["load calculations", "demand factor", "lighting", "dwelling"],
     lookup_path: {
-      index_keywords: ["Demand factors, lighting", "Lighting load, demand factors"],
-      index_entry: "Lighting load — demand factors, dwelling units → Table 220.42",
+      index_keywords: [
+        "Demand factors, lighting",
+        "Lighting load, demand factors",
+      ],
+      index_entry:
+        "Lighting load — demand factors, dwelling units → Table 220.42",
       article_or_table: "Table 220.42",
-      what_to_look_for: "Find 'First 3,000 VA' row → read 'Demand Factor' column → 100%"
-    }
+      what_to_look_for:
+        "Find 'First 3,000 VA' row → read 'Demand Factor' column → 100%",
+    },
   },
   {
     id: "220-003",
-    question: "What is the standard volt-ampere load assigned to each small-appliance and laundry branch circuit in a dwelling unit load calculation?",
+    question:
+      "What is the standard volt-ampere load assigned to each small-appliance and laundry branch circuit in a dwelling unit load calculation?",
     choices: ["1,000 VA", "1,500 VA", "2,000 VA", "3,000 VA"],
     correct_answer: "1,500 VA",
-    explanation: "NEC 220.52(A) and (B) assign 1,500 VA for each 20-ampere small-appliance branch circuit and each laundry branch circuit in a dwelling unit load calculation.",
+    explanation:
+      "NEC 220.52(A) and (B) assign 1,500 VA for each 20-ampere small-appliance branch circuit and each laundry branch circuit in a dwelling unit load calculation.",
     nec_article: "220.52(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["load calculations", "small appliance", "laundry", "1500 VA"],
     lookup_path: {
-      index_keywords: ["Small-appliance load", "Load calculations, small appliance"],
-      index_entry: "Small-appliance branch circuits — load calculation → 220.52(A)",
+      index_keywords: [
+        "Small-appliance load",
+        "Load calculations, small appliance",
+      ],
+      index_entry:
+        "Small-appliance branch circuits — load calculation → 220.52(A)",
       article_or_table: "220.52(A)",
-      what_to_look_for: "Read (A) — 'a load of not less than 1500 volt-amperes for each 2-wire small-appliance branch circuit'"
-    }
+      what_to_look_for:
+        "Read (A) — 'a load of not less than 1500 volt-amperes for each 2-wire small-appliance branch circuit'",
+    },
   },
   {
     id: "220-004",
-    question: "When calculating the demand load for electric ranges rated over 12 kW in a dwelling unit, which NEC table is used?",
+    question:
+      "When calculating the demand load for electric ranges rated over 12 kW in a dwelling unit, which NEC table is used?",
     choices: ["Table 220.42", "Table 220.55", "Table 220.56", "Table 220.12"],
     correct_answer: "Table 220.55",
-    explanation: "Table 220.55 provides demand factors and maximum demand for household electric ranges, wall-mounted ovens, and counter-mounted cooking units rated over 1¾ kW.",
+    explanation:
+      "Table 220.55 provides demand factors and maximum demand for household electric ranges, wall-mounted ovens, and counter-mounted cooking units rated over 1¾ kW.",
     nec_article: "Table 220.55",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
-    tags: ["load calculations", "electric range", "demand factor", "cooking equipment"],
+    tags: [
+      "load calculations",
+      "electric range",
+      "demand factor",
+      "cooking equipment",
+    ],
     lookup_path: {
-      index_keywords: ["Electric ranges, demand factors", "Cooking equipment, load calculation"],
+      index_keywords: [
+        "Electric ranges, demand factors",
+        "Cooking equipment, load calculation",
+      ],
       index_entry: "Ranges — household, demand loads → 220.55 → Table 220.55",
       article_or_table: "Table 220.55",
-      what_to_look_for: "Find number of appliances column → read demand load or apply Column C for ranges over 12 kW"
-    }
+      what_to_look_for:
+        "Find number of appliances column → read demand load or apply Column C for ranges over 12 kW",
+    },
   },
 
   // ─── PANELBOARDS ─────────────────────────────────────────────────────────────
   {
     id: "408-001",
-    question: "What is the maximum number of overcurrent devices permitted in a lighting and appliance branch-circuit panelboard?",
+    question:
+      "What is the maximum number of overcurrent devices permitted in a lighting and appliance branch-circuit panelboard?",
     choices: ["24", "30", "42", "No limit"],
     correct_answer: "42",
-    explanation: "NEC 408.54 limits the number of overcurrent devices in a lighting and appliance branch-circuit panelboard to 42.",
+    explanation:
+      "NEC 408.54 limits the number of overcurrent devices in a lighting and appliance branch-circuit panelboard to 42.",
     nec_article: "408.54",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["panelboards", "overcurrent devices", "408.54", "42 circuit"],
     lookup_path: {
-      index_keywords: ["Panelboards, overcurrent devices", "Circuit breakers, panelboard limit"],
+      index_keywords: [
+        "Panelboards, overcurrent devices",
+        "Circuit breakers, panelboard limit",
+      ],
       index_entry: "Panelboards — overcurrent devices, maximum number → 408.54",
       article_or_table: "408.54",
-      what_to_look_for: "Read 408.54 — 'not more than 42 overcurrent devices' in a lighting and appliance branch-circuit panelboard"
-    }
+      what_to_look_for:
+        "Read 408.54 — 'not more than 42 overcurrent devices' in a lighting and appliance branch-circuit panelboard",
+    },
   },
   {
     id: "408-002",
-    question: "Panelboards must be mounted in cabinets, cutout boxes, or enclosures designed for the purpose and must be dead-front. What additional requirement applies to panelboard enclosures?",
+    question:
+      "Panelboards must be mounted in cabinets, cutout boxes, or enclosures designed for the purpose and must be dead-front. What additional requirement applies to panelboard enclosures?",
     choices: [
       "They must be painted gray",
       "They must be grounded",
       "They must be mounted at eye level",
-      "They must be UL listed only"
+      "They must be UL listed only",
     ],
     correct_answer: "They must be grounded",
-    explanation: "NEC 408.40 requires that panelboard enclosures be grounded in accordance with Article 250 and the grounding terminal bar must be bonded to the enclosure.",
+    explanation:
+      "NEC 408.40 requires that panelboard enclosures be grounded in accordance with Article 250 and the grounding terminal bar must be bonded to the enclosure.",
     nec_article: "408.40",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["panelboards", "grounding", "enclosure", "408.40"],
     lookup_path: {
-      index_keywords: ["Panelboards, grounding", "Panelboard enclosures, grounding"],
+      index_keywords: [
+        "Panelboards, grounding",
+        "Panelboard enclosures, grounding",
+      ],
       index_entry: "Panelboards — grounding → 408.40",
       article_or_table: "408.40",
-      what_to_look_for: "Read 408.40 — enclosure must be grounded per Article 250; grounding terminal bonded to enclosure"
-    }
+      what_to_look_for:
+        "Read 408.40 — enclosure must be grounded per Article 250; grounding terminal bonded to enclosure",
+    },
   },
   {
     id: "408-003",
-    question: "What is required on every circuit breaker or fuse in a panelboard?",
-    choices: ["A red handle", "A legible directory", "A ground fault indicator", "A surge protector"],
+    question:
+      "What is required on every circuit breaker or fuse in a panelboard?",
+    choices: [
+      "A red handle",
+      "A legible directory",
+      "A ground fault indicator",
+      "A surge protector",
+    ],
     correct_answer: "A legible directory",
-    explanation: "NEC 408.4(A) requires that every circuit breaker and fuse be legibly identified as to its purpose or use, and a circuit directory must be provided on the face or inside the door of the panelboard.",
+    explanation:
+      "NEC 408.4(A) requires that every circuit breaker and fuse be legibly identified as to its purpose or use, and a circuit directory must be provided on the face or inside the door of the panelboard.",
     nec_article: "408.4(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["panelboards", "circuit directory", "labeling", "408.4"],
     lookup_path: {
-      index_keywords: ["Panelboards, circuit directory", "Circuit identification, panelboard"],
+      index_keywords: [
+        "Panelboards, circuit directory",
+        "Circuit identification, panelboard",
+      ],
       index_entry: "Panelboards — circuit identification → 408.4(A)",
       article_or_table: "408.4(A)",
-      what_to_look_for: "Read (A) — 'legibly identified as to its purpose or use' and directory on face or inside door"
-    }
+      what_to_look_for:
+        "Read (A) — 'legibly identified as to its purpose or use' and directory on face or inside door",
+    },
   },
 
   // ─── GENERATORS ──────────────────────────────────────────────────────────────
@@ -942,80 +1325,114 @@ export const questionBank: QuestionCard[] = [
       "An external fuse only",
       "Inherent design, circuit breakers, fuses, or other acceptable overcurrent protective means",
       "A manual disconnect only",
-      "No protection required for generators under 5 kW"
+      "No protection required for generators under 5 kW",
     ],
-    correct_answer: "Inherent design, circuit breakers, fuses, or other acceptable overcurrent protective means",
-    explanation: "NEC 445.12(A) requires generators to be protected against overloads by inherent design, circuit breakers, fuses, or other acceptable overcurrent protective means.",
+    correct_answer:
+      "Inherent design, circuit breakers, fuses, or other acceptable overcurrent protective means",
+    explanation:
+      "NEC 445.12(A) requires generators to be protected against overloads by inherent design, circuit breakers, fuses, or other acceptable overcurrent protective means.",
     nec_article: "445.12(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["generators", "overcurrent protection", "445.12"],
     lookup_path: {
-      index_keywords: ["Generators, overcurrent protection", "Generator protection"],
+      index_keywords: [
+        "Generators, overcurrent protection",
+        "Generator protection",
+      ],
       index_entry: "Generators — overcurrent protection → 445.12",
       article_or_table: "445.12(A)",
-      what_to_look_for: "Read (A) — inherent design, circuit breakers, fuses, or other acceptable means"
-    }
+      what_to_look_for:
+        "Read (A) — inherent design, circuit breakers, fuses, or other acceptable means",
+    },
   },
   {
     id: "445-002",
-    question: "What is the minimum conductor ampacity required for a generator with a nameplate current rating?",
-    choices: ["100% of nameplate current", "115% of nameplate current", "125% of nameplate current", "150% of nameplate current"],
+    question:
+      "What is the minimum conductor ampacity required for a generator with a nameplate current rating?",
+    choices: [
+      "100% of nameplate current",
+      "115% of nameplate current",
+      "125% of nameplate current",
+      "150% of nameplate current",
+    ],
     correct_answer: "115% of nameplate current",
-    explanation: "NEC 445.13(A) requires generator output circuit conductors to have an ampacity of not less than 115% of the nameplate current rating of the generator.",
+    explanation:
+      "NEC 445.13(A) requires generator output circuit conductors to have an ampacity of not less than 115% of the nameplate current rating of the generator.",
     nec_article: "445.13(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["generators", "conductor ampacity", "445.13", "nameplate"],
     lookup_path: {
-      index_keywords: ["Generators, conductor ampacity", "Generator output conductors"],
+      index_keywords: [
+        "Generators, conductor ampacity",
+        "Generator output conductors",
+      ],
       index_entry: "Generators — ampacity of conductors → 445.13(A)",
       article_or_table: "445.13(A)",
-      what_to_look_for: "Read (A) — 'not less than 115 percent of the nameplate current rating'"
-    }
+      what_to_look_for:
+        "Read (A) — 'not less than 115 percent of the nameplate current rating'",
+    },
   },
   {
     id: "445-003",
-    question: "A standby generator used as a separately derived system must have its neutral bonded to the generator frame and grounded per which article?",
+    question:
+      "A standby generator used as a separately derived system must have its neutral bonded to the generator frame and grounded per which article?",
     choices: ["Article 230", "Article 250", "Article 445", "Article 700"],
     correct_answer: "Article 250",
-    explanation: "NEC 445.18 requires that a generator used as a separately derived system be grounded and bonded in accordance with Article 250.",
+    explanation:
+      "NEC 445.18 requires that a generator used as a separately derived system be grounded and bonded in accordance with Article 250.",
     nec_article: "445.18",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["generators", "separately derived system", "grounding", "bonding"],
     lookup_path: {
-      index_keywords: ["Generators, separately derived system", "Separately derived systems, grounding"],
-      index_entry: "Generators — separately derived systems → 445.18 → Article 250",
+      index_keywords: [
+        "Generators, separately derived system",
+        "Separately derived systems, grounding",
+      ],
+      index_entry:
+        "Generators — separately derived systems → 445.18 → Article 250",
       article_or_table: "445.18",
-      what_to_look_for: "Read 445.18 — references Article 250 for grounding and bonding requirements"
-    }
+      what_to_look_for:
+        "Read 445.18 — references Article 250 for grounding and bonding requirements",
+    },
   },
 
   // ─── ADDITIONAL MIXED TOPICS ─────────────────────────────────────────────────
   {
     id: "300-001",
-    question: "What is the minimum burial depth for rigid metal conduit (RMC) installed under a residential driveway?",
+    question:
+      "What is the minimum burial depth for rigid metal conduit (RMC) installed under a residential driveway?",
     choices: ["6 inches", "12 inches", "18 inches", "24 inches"],
     correct_answer: "6 inches",
-    explanation: "Table 300.5 requires a minimum cover of 6 inches for rigid metal conduit installed under a residential driveway.",
+    explanation:
+      "Table 300.5 requires a minimum cover of 6 inches for rigid metal conduit installed under a residential driveway.",
     nec_article: "Table 300.5",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["burial depth", "RMC", "driveway", "underground"],
     lookup_path: {
-      index_keywords: ["Underground wiring, burial depth", "Conduit, burial depth", "Cover requirements"],
-      index_entry: "Underground installations — minimum cover → 300.5 → Table 300.5",
+      index_keywords: [
+        "Underground wiring, burial depth",
+        "Conduit, burial depth",
+        "Cover requirements",
+      ],
+      index_entry:
+        "Underground installations — minimum cover → 300.5 → Table 300.5",
       article_or_table: "Table 300.5",
-      what_to_look_for: "Find 'Rigid metal conduit' column → 'Under a residential driveway' row → 6 inches"
-    }
+      what_to_look_for:
+        "Find 'Rigid metal conduit' column → 'Under a residential driveway' row → 6 inches",
+    },
   },
   {
     id: "300-002",
-    question: "What is the minimum burial depth for a direct-buried cable (UF cable) installed under a residential driveway?",
+    question:
+      "What is the minimum burial depth for a direct-buried cable (UF cable) installed under a residential driveway?",
     choices: ["12 inches", "18 inches", "24 inches", "6 inches"],
     correct_answer: "18 inches",
-    explanation: "Table 300.5 requires a minimum cover of 18 inches for direct-buried cables installed under residential driveways.",
+    explanation:
+      "Table 300.5 requires a minimum cover of 18 inches for direct-buried cables installed under residential driveways.",
     nec_article: "Table 300.5",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
@@ -1024,179 +1441,253 @@ export const questionBank: QuestionCard[] = [
       index_keywords: ["Direct-buried cables, depth", "UF cable, burial depth"],
       index_entry: "Underground installations — minimum cover → Table 300.5",
       article_or_table: "Table 300.5",
-      what_to_look_for: "Find 'Direct-buried cables' column → 'Under a residential driveway' row → 18 inches"
-    }
+      what_to_look_for:
+        "Find 'Direct-buried cables' column → 'Under a residential driveway' row → 18 inches",
+    },
   },
   {
     id: "334-001",
-    question: "NM cable (Romex) is NOT permitted to be installed in which of the following locations?",
+    question:
+      "NM cable (Romex) is NOT permitted to be installed in which of the following locations?",
     choices: [
       "Inside a wood-frame wall of a dwelling unit",
       "In a commercial building of Type III construction",
       "In a building exceeding three floors above grade",
-      "In an attic of a one-family dwelling"
+      "In an attic of a one-family dwelling",
     ],
     correct_answer: "In a building exceeding three floors above grade",
-    explanation: "NEC 334.10(A)(1) limits the use of NM cable to one- and two-family dwellings and their attached garages and storage areas, and to multifamily dwellings not exceeding three floors above grade.",
+    explanation:
+      "NEC 334.10(A)(1) limits the use of NM cable to one- and two-family dwellings and their attached garages and storage areas, and to multifamily dwellings not exceeding three floors above grade.",
     nec_article: "334.10(A)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["NM cable", "Romex", "wiring methods", "334.10"],
     lookup_path: {
-      index_keywords: ["NM cable, permitted uses", "Nonmetallic-sheathed cable, uses permitted"],
+      index_keywords: [
+        "NM cable, permitted uses",
+        "Nonmetallic-sheathed cable, uses permitted",
+      ],
       index_entry: "Nonmetallic-sheathed cable — uses permitted → 334.10",
       article_or_table: "334.10(A)(1)",
-      what_to_look_for: "Read (A)(1) — limited to structures not exceeding three floors above grade"
-    }
+      what_to_look_for:
+        "Read (A)(1) — limited to structures not exceeding three floors above grade",
+    },
   },
   {
     id: "410-002",
-    question: "What is the minimum distance a recessed incandescent luminaire must be from thermal insulation unless listed for contact with insulation?",
+    question:
+      "What is the minimum distance a recessed incandescent luminaire must be from thermal insulation unless listed for contact with insulation?",
     choices: ["1 inch", "2 inches", "3 inches", "6 inches"],
     correct_answer: "3 inches",
-    explanation: "NEC 410.116(A)(1) requires recessed luminaires that are not identified for contact with insulation to be installed with a minimum clearance of 3 inches from thermal insulation.",
+    explanation:
+      "NEC 410.116(A)(1) requires recessed luminaires that are not identified for contact with insulation to be installed with a minimum clearance of 3 inches from thermal insulation.",
     nec_article: "410.116(A)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["luminaires", "recessed", "insulation clearance", "410.116"],
     lookup_path: {
-      index_keywords: ["Recessed luminaires, insulation clearance", "Luminaires, thermal insulation"],
-      index_entry: "Recessed luminaires — clearance from insulation → 410.116(A)(1)",
+      index_keywords: [
+        "Recessed luminaires, insulation clearance",
+        "Luminaires, thermal insulation",
+      ],
+      index_entry:
+        "Recessed luminaires — clearance from insulation → 410.116(A)(1)",
       article_or_table: "410.116(A)(1)",
-      what_to_look_for: "Read (A)(1) — 'not less than 3 in. from thermal insulation' unless listed for contact"
-    }
+      what_to_look_for:
+        "Read (A)(1) — 'not less than 3 in. from thermal insulation' unless listed for contact",
+    },
   },
   {
     id: "406-001",
-    question: "Tamper-resistant receptacles are required in which locations in a dwelling unit?",
+    question:
+      "Tamper-resistant receptacles are required in which locations in a dwelling unit?",
     choices: [
       "Only in children's bedrooms",
       "All 125-volt, 15- and 20-ampere receptacles in all areas of a dwelling unit",
       "Only in kitchens and bathrooms",
-      "Only in rooms accessible to children under 6"
+      "Only in rooms accessible to children under 6",
     ],
-    correct_answer: "All 125-volt, 15- and 20-ampere receptacles in all areas of a dwelling unit",
-    explanation: "NEC 406.12(A) requires tamper-resistant receptacles for all 125-volt, 15- and 20-ampere receptacles in all areas of a dwelling unit.",
+    correct_answer:
+      "All 125-volt, 15- and 20-ampere receptacles in all areas of a dwelling unit",
+    explanation:
+      "NEC 406.12(A) requires tamper-resistant receptacles for all 125-volt, 15- and 20-ampere receptacles in all areas of a dwelling unit.",
     nec_article: "406.12(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["tamper-resistant", "receptacles", "dwelling", "406.12"],
     lookup_path: {
-      index_keywords: ["Tamper-resistant receptacles", "Receptacles, tamper-resistant"],
+      index_keywords: [
+        "Tamper-resistant receptacles",
+        "Receptacles, tamper-resistant",
+      ],
       index_entry: "Tamper-resistant receptacles — dwelling units → 406.12(A)",
       article_or_table: "406.12(A)",
-      what_to_look_for: "Read (A) — 'all 125-volt, 15- and 20-ampere receptacles in all areas of a dwelling unit'"
-    }
+      what_to_look_for:
+        "Read (A) — 'all 125-volt, 15- and 20-ampere receptacles in all areas of a dwelling unit'",
+    },
   },
   {
     id: "700-001",
-    question: "Emergency lighting systems must be capable of providing illumination for a minimum of how long upon failure of normal power?",
+    question:
+      "Emergency lighting systems must be capable of providing illumination for a minimum of how long upon failure of normal power?",
     choices: ["30 minutes", "60 minutes", "90 minutes", "120 minutes"],
     correct_answer: "90 minutes",
-    explanation: "NEC 700.12 requires emergency lighting systems to provide illumination for a minimum of 90 minutes upon failure of the normal power supply.",
+    explanation:
+      "NEC 700.12 requires emergency lighting systems to provide illumination for a minimum of 90 minutes upon failure of the normal power supply.",
     nec_article: "700.12",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["emergency systems", "emergency lighting", "700.12", "90 minutes"],
     lookup_path: {
-      index_keywords: ["Emergency lighting, duration", "Emergency systems, battery backup"],
+      index_keywords: [
+        "Emergency lighting, duration",
+        "Emergency systems, battery backup",
+      ],
       index_entry: "Emergency systems — illumination duration → 700.12",
       article_or_table: "700.12",
-      what_to_look_for: "Read 700.12 — 'capable of providing the required illumination for a minimum of 90 minutes'"
-    }
+      what_to_look_for:
+        "Read 700.12 — 'capable of providing the required illumination for a minimum of 90 minutes'",
+    },
   },
   {
     id: "517-001",
-    question: "In a hospital operating room, what is the maximum voltage permitted between any two exposed conductive surfaces in a patient care vicinity?",
-    choices: ["5 millivolts", "10 millivolts", "40 millivolts", "100 millivolts"],
+    question:
+      "In a hospital operating room, what is the maximum voltage permitted between any two exposed conductive surfaces in a patient care vicinity?",
+    choices: [
+      "5 millivolts",
+      "10 millivolts",
+      "40 millivolts",
+      "100 millivolts",
+    ],
     correct_answer: "40 millivolts",
-    explanation: "NEC 517.13(A) requires that the voltage between any two exposed conductive surfaces in a patient care vicinity not exceed 40 millivolts.",
+    explanation:
+      "NEC 517.13(A) requires that the voltage between any two exposed conductive surfaces in a patient care vicinity not exceed 40 millivolts.",
     nec_article: "517.13(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["healthcare", "hospital", "patient care", "517.13"],
     lookup_path: {
-      index_keywords: ["Patient care vicinity, voltage", "Healthcare facilities, grounding"],
-      index_entry: "Healthcare facilities — patient care vicinity, voltage → 517.13(A)",
+      index_keywords: [
+        "Patient care vicinity, voltage",
+        "Healthcare facilities, grounding",
+      ],
+      index_entry:
+        "Healthcare facilities — patient care vicinity, voltage → 517.13(A)",
       article_or_table: "517.13(A)",
-      what_to_look_for: "Read (A) — 'not exceed 40 millivolts' between any two exposed conductive surfaces"
-    }
+      what_to_look_for:
+        "Read (A) — 'not exceed 40 millivolts' between any two exposed conductive surfaces",
+    },
   },
   {
     id: "250-005",
-    question: "What is the minimum size copper bonding jumper required to bond a metal water piping system in a building with a 200-ampere service?",
+    question:
+      "What is the minimum size copper bonding jumper required to bond a metal water piping system in a building with a 200-ampere service?",
     choices: ["6 AWG", "4 AWG", "2 AWG", "1/0 AWG"],
     correct_answer: "4 AWG",
-    explanation: "Table 250.102(C)(1) requires a minimum 4 AWG copper bonding jumper for metal water piping systems when the service-entrance conductors are 3/0 AWG through 350 kcmil copper.",
+    explanation:
+      "Table 250.102(C)(1) requires a minimum 4 AWG copper bonding jumper for metal water piping systems when the service-entrance conductors are 3/0 AWG through 350 kcmil copper.",
     nec_article: "Table 250.102(C)(1)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["grounding", "bonding", "water pipe", "bonding jumper"],
     lookup_path: {
-      index_keywords: ["Bonding jumpers, metal water pipe", "Water piping, bonding"],
-      index_entry: "Bonding — metal water piping → 250.104(A) → Table 250.102(C)(1)",
+      index_keywords: [
+        "Bonding jumpers, metal water pipe",
+        "Water piping, bonding",
+      ],
+      index_entry:
+        "Bonding — metal water piping → 250.104(A) → Table 250.102(C)(1)",
       article_or_table: "Table 250.102(C)(1)",
-      what_to_look_for: "Find service conductor size range matching 200A service → read bonding jumper size column → 4 AWG copper"
-    }
+      what_to_look_for:
+        "Find service conductor size range matching 200A service → read bonding jumper size column → 4 AWG copper",
+    },
   },
   {
     id: "358-004",
-    question: "What is the maximum number of bends (total degrees) permitted in a single run of conduit between pull points?",
+    question:
+      "What is the maximum number of bends (total degrees) permitted in a single run of conduit between pull points?",
     choices: ["180 degrees", "270 degrees", "360 degrees", "No limit"],
     correct_answer: "360 degrees",
-    explanation: "NEC 358.26 (EMT) and similar articles for other conduit types limit the total bends between pull points or boxes to 360 degrees (the equivalent of four 90-degree bends).",
+    explanation:
+      "NEC 358.26 (EMT) and similar articles for other conduit types limit the total bends between pull points or boxes to 360 degrees (the equivalent of four 90-degree bends).",
     nec_article: "358.26",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["conduit", "bends", "EMT", "358.26"],
     lookup_path: {
-      index_keywords: ["Conduit bends, maximum", "EMT, bends", "Bends, conduit"],
-      index_entry: "Electrical metallic tubing — bends, number in one run → 358.26",
+      index_keywords: [
+        "Conduit bends, maximum",
+        "EMT, bends",
+        "Bends, conduit",
+      ],
+      index_entry:
+        "Electrical metallic tubing — bends, number in one run → 358.26",
       article_or_table: "358.26",
-      what_to_look_for: "Read 358.26 — 'not more than the equivalent of four quarter bends (360 degrees total)'"
-    }
+      what_to_look_for:
+        "Read 358.26 — 'not more than the equivalent of four quarter bends (360 degrees total)'",
+    },
   },
   {
     id: "210-009",
-    question: "What is the maximum continuous load permitted on a 20-ampere branch circuit?",
+    question:
+      "What is the maximum continuous load permitted on a 20-ampere branch circuit?",
     choices: ["16 amperes", "20 amperes", "24 amperes", "25 amperes"],
     correct_answer: "16 amperes",
-    explanation: "NEC 210.20(A) limits the continuous load on a branch circuit to 80% of the branch circuit rating, so a 20-ampere circuit is limited to 16 amperes of continuous load.",
+    explanation:
+      "NEC 210.20(A) limits the continuous load on a branch circuit to 80% of the branch circuit rating, so a 20-ampere circuit is limited to 16 amperes of continuous load.",
     nec_article: "210.20(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "journeyman",
     tags: ["branch circuit", "continuous load", "80%", "210.20"],
     lookup_path: {
-      index_keywords: ["Continuous loads, branch circuit", "Branch circuits, continuous load"],
+      index_keywords: [
+        "Continuous loads, branch circuit",
+        "Branch circuits, continuous load",
+      ],
       index_entry: "Branch circuits — continuous loads → 210.20(A)",
       article_or_table: "210.20(A)",
-      what_to_look_for: "Read (A) — 'not exceed 80 percent of the branch-circuit ampere rating' for continuous loads"
-    }
+      what_to_look_for:
+        "Read (A) — 'not exceed 80 percent of the branch-circuit ampere rating' for continuous loads",
+    },
   },
   {
     id: "550-001",
-    question: "What is the minimum size service-entrance conductor permitted for a mobile home with a calculated load of 16,000 VA at 120/240 volts?",
+    question:
+      "What is the minimum size service-entrance conductor permitted for a mobile home with a calculated load of 16,000 VA at 120/240 volts?",
     choices: ["4 AWG", "2 AWG", "1/0 AWG", "2/0 AWG"],
     correct_answer: "2 AWG",
-    explanation: "A 16,000 VA load at 240V = 66.7A. Per Table 310.16, 2 AWG copper at 75°C = 95A, which is adequate. NEC 550.18(A) also sets minimums for mobile home feeder conductors.",
+    explanation:
+      "A 16,000 VA load at 240V = 66.7A. Per Table 310.16, 2 AWG copper at 75°C = 95A, which is adequate. NEC 550.18(A) also sets minimums for mobile home feeder conductors.",
     nec_article: "550.18(A)",
     nec_versions: ["2017", "2020", "2023", "2026"],
     difficulty: "master",
     tags: ["mobile homes", "service entrance", "load calculation", "550.18"],
     lookup_path: {
-      index_keywords: ["Mobile homes, service conductors", "Mobile homes, feeder"],
-      index_entry: "Mobile homes — service equipment, feeder conductors → 550.18(A)",
+      index_keywords: [
+        "Mobile homes, service conductors",
+        "Mobile homes, feeder",
+      ],
+      index_entry:
+        "Mobile homes — service equipment, feeder conductors → 550.18(A)",
       article_or_table: "550.18(A)",
-      what_to_look_for: "Calculate load ÷ 240V = amperes → find conductor size in Table 310.16 at 75°C column"
-    }
+      what_to_look_for:
+        "Calculate load ÷ 240V = amperes → find conductor size in Table 310.16 at 75°C column",
+    },
   },
-
 ];
 
-export function getRandomQuestions(count: number, difficulty?: QuestionCard["difficulty"], version?: string): QuestionCard[] {
-  let pool = difficulty ? questionBank.filter(q => q.difficulty === difficulty) : [...questionBank];
+export function getRandomQuestions(
+  count: number,
+  difficulty?: QuestionCard["difficulty"],
+  version?: string
+): QuestionCard[] {
+  let pool = difficulty
+    ? questionBank.filter(q => q.difficulty === difficulty)
+    : [...questionBank];
   if (version && version !== "all") {
-    pool = pool.filter(q => q.nec_versions.includes(version as "2017" | "2020" | "2023" | "2026"));
+    pool = pool.filter(q =>
+      q.nec_versions.includes(version as "2017" | "2020" | "2023" | "2026")
+    );
   }
   const shuffled = pool.sort(() => Math.random() - 0.5);
   return shuffled.slice(0, Math.min(count, shuffled.length));
@@ -1205,11 +1696,12 @@ export function getRandomQuestions(count: number, difficulty?: QuestionCard["dif
 // Helper: search questions
 export function searchQuestions(query: string): QuestionCard[] {
   const q = query.toLowerCase();
-  return questionBank.filter(card =>
-    card.question.toLowerCase().includes(q) ||
-    card.nec_article.toLowerCase().includes(q) ||
-    card.tags.some(t => t.toLowerCase().includes(q)) ||
-    card.lookup_path.index_keywords.some(k => k.toLowerCase().includes(q)) ||
-    card.explanation.toLowerCase().includes(q)
+  return questionBank.filter(
+    card =>
+      card.question.toLowerCase().includes(q) ||
+      card.nec_article.toLowerCase().includes(q) ||
+      card.tags.some(t => t.toLowerCase().includes(q)) ||
+      card.lookup_path.index_keywords.some(k => k.toLowerCase().includes(q)) ||
+      card.explanation.toLowerCase().includes(q)
   );
 }
diff --git a/client/src/hooks/useInAppBrowser.ts b/client/src/hooks/useInAppBrowser.ts
index d2ee6a4..cf2cca8 100644
--- a/client/src/hooks/useInAppBrowser.ts
+++ b/client/src/hooks/useInAppBrowser.ts
@@ -62,11 +62,22 @@ export function getInAppBrowserLabel(b: InAppBrowser): string {
 
 /** True when running on an iOS device (Safari is the escape browser). */
 export function isIOS(ua?: string): boolean {
-  const agent = (ua ?? (typeof navigator !== "undefined" ? navigator.userAgent : "")).toLowerCase();
-  return /iphone|ipad|ipod/.test(agent) || (/macintosh/.test(agent) && typeof navigator !== "undefined" && navigator.maxTouchPoints > 1);
+  const agent = (
+    ua ?? (typeof navigator !== "undefined" ? navigator.userAgent : "")
+  ).toLowerCase();
+  return (
+    /iphone|ipad|ipod/.test(agent) ||
+    (/macintosh/.test(agent) &&
+      typeof navigator !== "undefined" &&
+      navigator.maxTouchPoints > 1)
+  );
 }
 
-export function useInAppBrowser(): { browser: InAppBrowser; isInApp: boolean; ios: boolean } {
+export function useInAppBrowser(): {
+  browser: InAppBrowser;
+  isInApp: boolean;
+  ios: boolean;
+} {
   const [browser, setBrowser] = useState<InAppBrowser>(null);
   const [ios, setIos] = useState(false);
 
diff --git a/client/src/index.css b/client/src/index.css
index 0b41ed2..5a8a570 100644
--- a/client/src/index.css
+++ b/client/src/index.css
@@ -88,9 +88,9 @@
      ThemeContext adds `.dark`; also drives all shadcn `dark:` utilities. */
   --background: oklch(0 0 0);
   --foreground: oklch(0.92 0.01 80);
-  --card: oklch(0.10 0.005 250);
+  --card: oklch(0.1 0.005 250);
   --card-foreground: oklch(0.92 0.01 80);
-  --popover: oklch(0.10 0.005 250);
+  --popover: oklch(0.1 0.005 250);
   --popover-foreground: oklch(0.92 0.01 80);
   --primary: oklch(0.75 0.18 70);
   --primary-foreground: oklch(0.1 0.01 70);
@@ -177,7 +177,9 @@
   }
 
   .dark .panel-card {
-    box-shadow: inset 0 1px 0 oklch(0.3 0.01 250), 0 4px 12px oklch(0 0 0 / 40%);
+    box-shadow:
+      inset 0 1px 0 oklch(0.3 0.01 250),
+      0 4px 12px oklch(0 0 0 / 40%);
   }
 
   .indicator-pulse {
@@ -185,8 +187,13 @@
   }
 
   @keyframes pulse-amber {
-    0%, 100% { opacity: 1; }
-    50% { opacity: 0.5; }
+    0%,
+    100% {
+      opacity: 1;
+    }
+    50% {
+      opacity: 0.5;
+    }
   }
 
   .stencil-label {
diff --git a/client/src/main.tsx b/client/src/main.tsx
index 8adf6f5..056b491 100644
--- a/client/src/main.tsx
+++ b/client/src/main.tsx
@@ -1,5 +1,5 @@
 import { trpc } from "@/lib/trpc";
-import { UNAUTHED_ERR_MSG } from '@shared/const';
+import { UNAUTHED_ERR_MSG } from "@shared/const";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 import { httpBatchLink, TRPCClientError } from "@trpc/client";
 import { createRoot } from "react-dom/client";
diff --git a/client/src/pages/CoPilot.tsx b/client/src/pages/CoPilot.tsx
index 1ccd628..1a758f4 100644
--- a/client/src/pages/CoPilot.tsx
+++ b/client/src/pages/CoPilot.tsx
@@ -48,7 +48,9 @@ export default function CoPilot() {
   const [question, setQuestion] = useState("");
   const [necVersion, setNecVersion] = useState<NecVersion>("2026");
   const [result, setResult] = useState<AnalysisResult | null>(null);
-  const [selectedDrilldownLevel, setSelectedDrilldownLevel] = useState<number | null>(null);
+  const [selectedDrilldownLevel, setSelectedDrilldownLevel] = useState<
+    number | null
+  >(null);
   const [clientId] = useState(() => getClientId());
   const [limitReached, setLimitReached] = useState(false);
   const textareaRef = useRef<HTMLTextAreaElement>(null);
@@ -58,13 +60,13 @@ export default function CoPilot() {
   const { data: usage } = trpc.copilot.usageStatus.useQuery({ clientId });
 
   const analyze = trpc.copilot.analyze.useMutation({
-    onSuccess: (data) => {
+    onSuccess: data => {
       setResult(data);
       setSelectedDrilldownLevel(null);
       utils.copilot.usageStatus.invalidate({ clientId });
       window.scrollTo({ top: 0, behavior: "smooth" });
     },
-    onError: (err) => {
+    onError: err => {
       if (err.message?.includes("LIMIT_REACHED")) {
         setLimitReached(true);
         return;
@@ -114,10 +116,12 @@ export default function CoPilot() {
             <div className="w-12 h-12 rounded-full bg-primary/15 flex items-center justify-center mx-auto mb-4">
               <Lock className="w-6 h-6 text-primary" />
             </div>
-            <h3 className="text-lg font-bold text-foreground mb-2">You're out of free questions today</h3>
+            <h3 className="text-lg font-bold text-foreground mb-2">
+              You're out of free questions today
+            </h3>
             <p className="text-sm text-muted-foreground mb-5">
-              You get {usage?.limit ?? 3} free Co-Pilot questions per day. Upgrade to Pro for unlimited
-              access to every NEC lookup.
+              You get {usage?.limit ?? 3} free Co-Pilot questions per day.
+              Upgrade to Pro for unlimited access to every NEC lookup.
             </p>
             <button
               onClick={() => navigate("/pricing")}
@@ -136,11 +140,13 @@ export default function CoPilot() {
       )}
       {/* Page heading + NEC version selector */}
       <div className="px-5 pt-6 pb-2 flex items-center justify-between gap-3">
-        <h1 className="text-2xl font-bold text-primary tracking-tight">Code Co-Pilot</h1>
+        <h1 className="text-2xl font-bold text-primary tracking-tight">
+          Code Co-Pilot
+        </h1>
         <div className="flex items-center gap-2">
           <span className="text-sm text-muted-foreground">NEC</span>
           <div className="flex gap-1">
-            {NEC_VERSIONS.map((v) => (
+            {NEC_VERSIONS.map(v => (
               <button
                 key={v}
                 onClick={() => setNecVersion(v)}
@@ -166,12 +172,14 @@ export default function CoPilot() {
               <div className="bg-card border border-border rounded-lg p-5">
                 <div className="flex items-center gap-2 mb-3">
                   <Search className="w-4 h-4 text-primary" />
-                  <span className="text-xs font-semibold text-muted-foreground uppercase">INPUT FEED</span>
+                  <span className="text-xs font-semibold text-muted-foreground uppercase">
+                    INPUT FEED
+                  </span>
                 </div>
                 <textarea
                   ref={textareaRef}
                   value={question}
-                  onChange={(e) => setQuestion(e.target.value)}
+                  onChange={e => setQuestion(e.target.value)}
                   onKeyDown={handleKeyDown}
                   placeholder="Paste your exam question here..."
                   className="w-full bg-transparent text-foreground placeholder-muted-foreground resize-none focus:outline-none text-sm leading-relaxed"
@@ -200,15 +208,22 @@ export default function CoPilot() {
                 <div className="mt-3 text-center text-xs text-muted-foreground">
                   {usage.remaining > 0 ? (
                     <span>
-                      {usage.remaining} of {usage.limit} free questions left today ·{" "}
-                      <button onClick={() => navigate("/pricing")} className="text-primary hover:underline">
+                      {usage.remaining} of {usage.limit} free questions left
+                      today ·{" "}
+                      <button
+                        onClick={() => navigate("/pricing")}
+                        className="text-primary hover:underline"
+                      >
                         Go unlimited
                       </button>
                     </span>
                   ) : (
                     <span>
                       Daily free limit reached ·{" "}
-                      <button onClick={() => navigate("/pricing")} className="text-primary hover:underline">
+                      <button
+                        onClick={() => navigate("/pricing")}
+                        className="text-primary hover:underline"
+                      >
                         Upgrade to Pro
                       </button>
                     </span>
@@ -216,14 +231,18 @@ export default function CoPilot() {
                 </div>
               )}
               {usage?.unlimited && (
-                <div className="mt-3 text-center text-xs text-primary">Pro · Unlimited questions</div>
+                <div className="mt-3 text-center text-xs text-primary">
+                  Pro · Unlimited questions
+                </div>
               )}
             </div>
 
             {/* Suggested Keywords */}
             {suggestions.length > 0 && (
               <div className="max-w-2xl mx-auto mb-8">
-                <p className="text-xs font-semibold text-muted-foreground uppercase mb-3">SUGGESTED KEYWORDS</p>
+                <p className="text-xs font-semibold text-muted-foreground uppercase mb-3">
+                  SUGGESTED KEYWORDS
+                </p>
                 <div className="flex flex-wrap gap-2">
                   {suggestions.map((s, i) => (
                     <button
@@ -243,7 +262,9 @@ export default function CoPilot() {
               <div className="w-16 h-16 bg-card rounded-full flex items-center justify-center mx-auto mb-4">
                 <MapPin className="w-8 h-8 text-primary" />
               </div>
-              <p className="text-muted-foreground italic">READY FOR NAVIGATION INPUT</p>
+              <p className="text-muted-foreground italic">
+                READY FOR NAVIGATION INPUT
+              </p>
             </div>
           </>
         ) : (
@@ -254,7 +275,9 @@ export default function CoPilot() {
               <div className="bg-card border border-border rounded-lg p-6 mb-6">
                 <div className="flex items-center gap-2 mb-4">
                   <BookOpen className="w-4 h-4 text-primary" />
-                  <span className="text-xs font-semibold text-muted-foreground uppercase">NEC Index Lookup Path</span>
+                  <span className="text-xs font-semibold text-muted-foreground uppercase">
+                    NEC Index Lookup Path
+                  </span>
                 </div>
 
                 {result.indexDrilldown.length > 0 ? (
@@ -264,7 +287,9 @@ export default function CoPilot() {
                         <button
                           onClick={() =>
                             setSelectedDrilldownLevel(
-                              selectedDrilldownLevel === level.level ? null : level.level
+                              selectedDrilldownLevel === level.level
+                                ? null
+                                : level.level
                             )
                           }
                           className={`w-full text-left px-4 py-3 rounded-lg border transition-all flex items-center justify-between ${
@@ -278,11 +303,15 @@ export default function CoPilot() {
                               Step {level.level}
                             </div>
                             <div className="font-semibold">{level.entry}</div>
-                            <div className="text-xs mt-1 opacity-70">{level.description}</div>
+                            <div className="text-xs mt-1 opacity-70">
+                              {level.description}
+                            </div>
                           </div>
                           <ChevronRight
                             className={`w-4 h-4 transition-transform ${
-                              selectedDrilldownLevel === level.level ? "rotate-90" : ""
+                              selectedDrilldownLevel === level.level
+                                ? "rotate-90"
+                                : ""
                             }`}
                           />
                         </button>
@@ -301,9 +330,13 @@ export default function CoPilot() {
               <div className="bg-card border border-border rounded-lg p-6 mb-6">
                 <div className="flex items-center gap-2 mb-4">
                   <FileText className="w-4 h-4 text-primary" />
-                  <span className="text-xs font-semibold text-muted-foreground uppercase">Article Citation</span>
+                  <span className="text-xs font-semibold text-muted-foreground uppercase">
+                    Article Citation
+                  </span>
+                </div>
+                <div className="text-2xl font-bold text-primary mb-2">
+                  {result.article}
                 </div>
-                <div className="text-2xl font-bold text-primary mb-2">{result.article}</div>
                 <div className="text-foreground/80">{result.articleTitle}</div>
               </div>
 
@@ -311,9 +344,13 @@ export default function CoPilot() {
               <div className="bg-card border border-border rounded-lg p-6 mb-6">
                 <div className="flex items-center gap-2 mb-4">
                   <Lightbulb className="w-4 h-4 text-primary" />
-                  <span className="text-xs font-semibold text-muted-foreground uppercase">Answer</span>
+                  <span className="text-xs font-semibold text-muted-foreground uppercase">
+                    Answer
+                  </span>
                 </div>
-                <p className="text-foreground/90 leading-relaxed">{result.answer}</p>
+                <p className="text-foreground/90 leading-relaxed">
+                  {result.answer}
+                </p>
               </div>
 
               {/* Exam Tip */}
@@ -321,9 +358,13 @@ export default function CoPilot() {
                 <div className="bg-card border border-border rounded-lg p-6 mb-6">
                   <div className="flex items-center gap-2 mb-4">
                     <Zap className="w-4 h-4 text-primary" />
-                    <span className="text-xs font-semibold text-muted-foreground uppercase">Exam Tip</span>
+                    <span className="text-xs font-semibold text-muted-foreground uppercase">
+                      Exam Tip
+                    </span>
                   </div>
-                  <p className="text-foreground/90 leading-relaxed italic">{result.examTip}</p>
+                  <p className="text-foreground/90 leading-relaxed italic">
+                    {result.examTip}
+                  </p>
                 </div>
               )}
 
@@ -341,7 +382,6 @@ export default function CoPilot() {
           </>
         )}
       </div>
-
     </AppLayout>
   );
 }
diff --git a/client/src/pages/ComponentShowcase.tsx b/client/src/pages/ComponentShowcase.tsx
index b7725c2..c619b03 100644
--- a/client/src/pages/ComponentShowcase.tsx
+++ b/client/src/pages/ComponentShowcase.tsx
@@ -1028,7 +1028,8 @@ export default function ComponentsShowcase() {
                       <DialogHeader>
                         <DialogTitle>Test Input</DialogTitle>
                         <DialogDescription>
-                          Enter some text below. Press Enter to submit (IME composition supported).
+                          Enter some text below. Press Enter to submit (IME
+                          composition supported).
                         </DialogDescription>
                       </DialogHeader>
                       <div className="space-y-4 py-4">
@@ -1038,7 +1039,7 @@ export default function ComponentsShowcase() {
                             id="dialog-input"
                             placeholder="Type something..."
                             value={dialogInput}
-                            onChange={(e) => setDialogInput(e.target.value)}
+                            onChange={e => setDialogInput(e.target.value)}
                             onKeyDown={handleDialogKeyDown}
                             autoFocus
                           />
@@ -1399,11 +1400,13 @@ export default function ComponentsShowcase() {
                 <div className="space-y-4">
                   <div className="text-sm text-muted-foreground">
                     <p>
-                      A ready-to-use chat interface component that integrates with the LLM system.
-                      Features markdown rendering, auto-scrolling, and loading states.
+                      A ready-to-use chat interface component that integrates
+                      with the LLM system. Features markdown rendering,
+                      auto-scrolling, and loading states.
                     </p>
                     <p className="mt-2">
-                      This is a demo with simulated responses. In a real app, you'd connect it to a tRPC mutation.
+                      This is a demo with simulated responses. In a real app,
+                      you'd connect it to a tRPC mutation.
                     </p>
                   </div>
                   <AIChatBox
diff --git a/client/src/pages/Dashboard.tsx b/client/src/pages/Dashboard.tsx
index b374c77..044e660 100644
--- a/client/src/pages/Dashboard.tsx
+++ b/client/src/pages/Dashboard.tsx
@@ -5,14 +5,7 @@
  */
 import AppLayout from "@/components/AppLayout";
 import { Link } from "wouter";
-import {
-  Timer,
-  Zap,
-  Search,
-  Bot,
-  ArrowRight,
-  BookOpen,
-} from "lucide-react";
+import { Timer, Zap, Search, Bot, ArrowRight, BookOpen } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { useAuth } from "@/_core/hooks/useAuth";
 import { getLoginUrl } from "@/const";
@@ -66,7 +59,9 @@ export default function Dashboard() {
           </p>
 
           <h1 className="text-5xl sm:text-6xl lg:text-7xl font-bold text-white leading-[1.05] tracking-tight">
-            Find any NEC<br />answer fast.
+            Find any NEC
+            <br />
+            answer fast.
           </h1>
 
           <p className="mt-5 text-xl sm:text-2xl font-mono text-amber-400 tracking-tight">
@@ -74,8 +69,8 @@ export default function Dashboard() {
           </p>
 
           <p className="mt-5 text-white/75 text-base sm:text-lg max-w-xl mx-auto leading-relaxed">
-            The exact method journeyman and master electricians use —
-            on the exam and on the job.
+            The exact method journeyman and master electricians use — on the
+            exam and on the job.
           </p>
 
           {/* Single primary CTA */}
@@ -126,18 +121,41 @@ export default function Dashboard() {
           <div className="grid grid-cols-2 lg:grid-cols-4 gap-6">
             {(
               [
-                { step: "01", label: "Question", note: "Read what's actually being asked." },
-                { step: "02", label: "Index Keyword", note: "Spot the word to look up." },
-                { step: "03", label: "Article / Table", note: "Navigate straight to it." },
-                { step: "04", label: "Answer", note: "Pull the answer from the book." },
+                {
+                  step: "01",
+                  label: "Question",
+                  note: "Read what's actually being asked.",
+                },
+                {
+                  step: "02",
+                  label: "Index Keyword",
+                  note: "Spot the word to look up.",
+                },
+                {
+                  step: "03",
+                  label: "Article / Table",
+                  note: "Navigate straight to it.",
+                },
+                {
+                  step: "04",
+                  label: "Answer",
+                  note: "Pull the answer from the book.",
+                },
               ] as const
             ).map(({ step, label, note }) => (
-              <div key={step} className="flex flex-col items-center text-center gap-2">
+              <div
+                key={step}
+                className="flex flex-col items-center text-center gap-2"
+              >
                 <span className="text-4xl font-bold text-amber-500/20 font-mono leading-none">
                   {step}
                 </span>
-                <h3 className="font-semibold text-foreground text-sm">{label}</h3>
-                <p className="text-xs text-muted-foreground leading-relaxed">{note}</p>
+                <h3 className="font-semibold text-foreground text-sm">
+                  {label}
+                </h3>
+                <p className="text-xs text-muted-foreground leading-relaxed">
+                  {note}
+                </p>
               </div>
             ))}
           </div>
@@ -155,13 +173,17 @@ export default function Dashboard() {
                   <Bot className="w-7 h-7 text-amber-600" />
                 </div>
                 <div className="flex-1">
-                  <h2 className="text-xl font-bold text-foreground">AI Co-Pilot</h2>
+                  <h2 className="text-xl font-bold text-foreground">
+                    AI Co-Pilot
+                  </h2>
                   <p className="text-muted-foreground mt-1 text-sm leading-relaxed max-w-lg">
-                    Paste any NEC question. The Co-Pilot walks you through the index keyword,
-                    the article, and the answer — so you learn to find it yourself next time.
+                    Paste any NEC question. The Co-Pilot walks you through the
+                    index keyword, the article, and the answer — so you learn to
+                    find it yourself next time.
                   </p>
                   <p className="text-xs text-amber-600 font-mono mt-2 font-semibold">
-                    3 FREE questions/day · Unlimited with Lifetime Access ($39.99)
+                    3 FREE questions/day · Unlimited with Lifetime Access
+                    ($39.99)
                   </p>
                 </div>
                 <ArrowRight className="w-5 h-5 text-amber-500 group-hover:translate-x-1 transition-transform flex-shrink-0" />
@@ -192,8 +214,12 @@ export default function Dashboard() {
                       LIFETIME
                     </span>
                   </div>
-                  <h3 className="font-semibold text-foreground text-base">{title}</h3>
-                  <p className="text-sm text-muted-foreground mt-1 leading-relaxed">{subtitle}</p>
+                  <h3 className="font-semibold text-foreground text-base">
+                    {title}
+                  </h3>
+                  <p className="text-sm text-muted-foreground mt-1 leading-relaxed">
+                    {subtitle}
+                  </p>
                   <div className="mt-4 flex items-center gap-1 text-xs text-amber-600 font-medium group-hover:gap-2 transition-all">
                     <span>Get access</span>
                     <ArrowRight className="w-3.5 h-3.5" />
@@ -208,7 +234,9 @@ export default function Dashboard() {
                 Get Lifetime Access — $39.99
               </Button>
             </Link>
-            <p className="text-xs text-muted-foreground mt-2">One-time payment. No subscription. Ever.</p>
+            <p className="text-xs text-muted-foreground mt-2">
+              One-time payment. No subscription. Ever.
+            </p>
           </div>
         </div>
       </section>
@@ -218,7 +246,9 @@ export default function Dashboard() {
         <div className="max-w-5xl mx-auto px-6 py-10 flex flex-col sm:flex-row items-start gap-4">
           <BookOpen className="w-5 h-5 text-amber-500 flex-shrink-0 mt-0.5" />
           <div>
-            <p className="text-sm font-medium text-foreground">Don't own the code book yet?</p>
+            <p className="text-sm font-medium text-foreground">
+              Don't own the code book yet?
+            </p>
             <p className="text-sm text-muted-foreground mt-0.5">
               NFPA offers free read-only access to NFPA 70 (NEC) online.{" "}
               <a
@@ -235,7 +265,8 @@ export default function Dashboard() {
         </div>
         <div className="max-w-5xl mx-auto px-6 pb-10 border-t border-border pt-6">
           <p className="text-xs text-muted-foreground">
-            Unofficial study tool — not affiliated with NFPA. Always verify answers with your code book.
+            Unofficial study tool — not affiliated with NFPA. Always verify
+            answers with your code book.
           </p>
         </div>
       </section>
diff --git a/client/src/pages/ExamMode.tsx b/client/src/pages/ExamMode.tsx
index 00ce0a3..16a5529 100644
--- a/client/src/pages/ExamMode.tsx
+++ b/client/src/pages/ExamMode.tsx
@@ -35,7 +35,10 @@ function ExamContent() {
     if (state !== "active" || timeLeft <= 0) return;
     const interval = setInterval(() => {
       setTimeLeft(t => {
-        if (t <= 1) { setState("review"); return 0; }
+        if (t <= 1) {
+          setState("review");
+          return 0;
+        }
         return t - 1;
       });
     }, 1000);
@@ -55,8 +58,10 @@ function ExamContent() {
     }
   };
 
-  const score = questions.reduce((acc, q) =>
-    acc + (answers[q.id] === q.correct_answer ? 1 : 0), 0);
+  const score = questions.reduce(
+    (acc, q) => acc + (answers[q.id] === q.correct_answer ? 1 : 0),
+    0
+  );
 
   const formatTime = (seconds: number) => {
     const m = Math.floor(seconds / 60);
@@ -70,9 +75,12 @@ function ExamContent() {
         <BackButton fallback="/" label="Back to Panel" className="-ml-3" />
         <div>
           <p className="stencil-label mb-2">EXAM MODE</p>
-          <h2 className="text-2xl font-bold text-foreground">Timed Practice Exam</h2>
+          <h2 className="text-2xl font-bold text-foreground">
+            Timed Practice Exam
+          </h2>
           <p className="text-muted-foreground mt-2 text-sm">
-            Simulate exam conditions. Timer starts immediately. Each question shows rationale and NEC reference after you answer.
+            Simulate exam conditions. Timer starts immediately. Each question
+            shows rationale and NEC reference after you answer.
           </p>
         </div>
         <div className="space-y-3">
@@ -89,8 +97,12 @@ function ExamContent() {
               <div className="flex items-center gap-3">
                 <Timer className="w-4 h-4 text-primary" />
                 <div className="text-left">
-                  <p className="font-mono text-sm font-bold text-foreground">{label}</p>
-                  <p className="stencil-label">{count} questions • {time}</p>
+                  <p className="font-mono text-sm font-bold text-foreground">
+                    {label}
+                  </p>
+                  <p className="stencil-label">
+                    {count} questions • {time}
+                  </p>
                 </div>
               </div>
               <span className="font-mono text-xs text-primary">START →</span>
@@ -108,11 +120,17 @@ function ExamContent() {
       <div className="p-6 lg:p-8 max-w-2xl mx-auto space-y-6">
         <div className="panel-card p-6 rounded-sm text-center">
           <p className="stencil-label mb-3">EXAM COMPLETE</p>
-          <p className={`text-5xl font-mono font-bold ${passed ? "text-green-400" : "text-destructive"}`}>
+          <p
+            className={`text-5xl font-mono font-bold ${passed ? "text-green-400" : "text-destructive"}`}
+          >
             {percentage}%
           </p>
-          <p className="text-muted-foreground mt-2 font-mono text-sm">{score} / {questions.length} correct</p>
-          <p className={`mt-2 font-mono text-xs uppercase tracking-wider ${passed ? "text-green-400" : "text-destructive"}`}>
+          <p className="text-muted-foreground mt-2 font-mono text-sm">
+            {score} / {questions.length} correct
+          </p>
+          <p
+            className={`mt-2 font-mono text-xs uppercase tracking-wider ${passed ? "text-green-400" : "text-destructive"}`}
+          >
             {passed ? "PASS" : "NEEDS REVIEW"}
           </p>
         </div>
@@ -123,17 +141,31 @@ function ExamContent() {
             return (
               <div key={q.id} className="panel-card p-4 rounded-sm">
                 <div className="flex items-start gap-3">
-                  {correct
-                    ? <CheckCircle className="w-4 h-4 text-green-400 mt-0.5 flex-shrink-0" />
-                    : <XCircle className="w-4 h-4 text-destructive mt-0.5 flex-shrink-0" />}
+                  {correct ? (
+                    <CheckCircle className="w-4 h-4 text-green-400 mt-0.5 flex-shrink-0" />
+                  ) : (
+                    <XCircle className="w-4 h-4 text-destructive mt-0.5 flex-shrink-0" />
+                  )}
                   <div className="flex-1">
-                    <p className="text-sm text-foreground font-medium">{i + 1}. {q.question}</p>
-                    {!correct && <p className="text-xs text-destructive mt-1 font-mono">Your answer: {ua || "No answer"}</p>}
-                    <p className="text-xs text-green-400 mt-1 font-mono">Correct: {q.correct_answer}</p>
-                    <p className="text-xs text-muted-foreground mt-2">{q.explanation}</p>
+                    <p className="text-sm text-foreground font-medium">
+                      {i + 1}. {q.question}
+                    </p>
+                    {!correct && (
+                      <p className="text-xs text-destructive mt-1 font-mono">
+                        Your answer: {ua || "No answer"}
+                      </p>
+                    )}
+                    <p className="text-xs text-green-400 mt-1 font-mono">
+                      Correct: {q.correct_answer}
+                    </p>
+                    <p className="text-xs text-muted-foreground mt-2">
+                      {q.explanation}
+                    </p>
                     <div className="flex items-center gap-2 mt-2">
                       <BookOpen className="w-3 h-3 text-primary" />
-                      <span className="font-mono text-xs text-primary">{q.nec_article}</span>
+                      <span className="font-mono text-xs text-primary">
+                        {q.nec_article}
+                      </span>
                     </div>
                   </div>
                 </div>
@@ -146,7 +178,9 @@ function ExamContent() {
           className="w-full panel-card p-4 rounded-sm flex items-center justify-center gap-2 hover:border-primary/40 transition-all"
         >
           <RotateCcw className="w-4 h-4 text-primary" />
-          <span className="font-mono text-sm font-bold text-foreground">NEW EXAM</span>
+          <span className="font-mono text-sm font-bold text-foreground">
+            NEW EXAM
+          </span>
         </button>
       </div>
     );
@@ -162,14 +196,25 @@ function ExamContent() {
       <div className="flex items-center justify-between panel-card p-3 rounded-sm">
         <div className="flex items-center gap-2">
           <Timer className="w-4 h-4 text-primary indicator-pulse" />
-          <span className="font-mono text-sm font-bold text-foreground">{formatTime(timeLeft)}</span>
+          <span className="font-mono text-sm font-bold text-foreground">
+            {formatTime(timeLeft)}
+          </span>
         </div>
-        <span className="font-mono text-xs text-muted-foreground">{currentIndex + 1} / {questions.length}</span>
+        <span className="font-mono text-xs text-muted-foreground">
+          {currentIndex + 1} / {questions.length}
+        </span>
         <div className="flex gap-1">
           {questions.map((q, i) => (
-            <div key={q.id} className={`w-2 h-2 rounded-full ${
-              i === currentIndex ? "bg-primary" : answers[q.id] ? "bg-green-400/60" : "bg-muted"
-            }`} />
+            <div
+              key={q.id}
+              className={`w-2 h-2 rounded-full ${
+                i === currentIndex
+                  ? "bg-primary"
+                  : answers[q.id]
+                    ? "bg-green-400/60"
+                    : "bg-muted"
+              }`}
+            />
           ))}
         </div>
       </div>
@@ -177,11 +222,19 @@ function ExamContent() {
       <div className="panel-card p-6 rounded-sm">
         <div className="flex items-center gap-2 mb-4">
           <span className="stencil-label">QUESTION {currentIndex + 1}</span>
-          <span className={`ml-auto px-2 py-0.5 rounded-sm text-[10px] font-mono font-bold uppercase tracking-wider ${
-            currentQ.difficulty === "master" ? "bg-primary/20 text-primary" : "bg-secondary text-muted-foreground"
-          }`}>{currentQ.difficulty}</span>
+          <span
+            className={`ml-auto px-2 py-0.5 rounded-sm text-[10px] font-mono font-bold uppercase tracking-wider ${
+              currentQ.difficulty === "master"
+                ? "bg-primary/20 text-primary"
+                : "bg-secondary text-muted-foreground"
+            }`}
+          >
+            {currentQ.difficulty}
+          </span>
         </div>
-        <p className="text-foreground font-medium leading-relaxed">{currentQ.question}</p>
+        <p className="text-foreground font-medium leading-relaxed">
+          {currentQ.question}
+        </p>
       </div>
 
       <div className="space-y-2">
@@ -193,24 +246,43 @@ function ExamContent() {
           return (
             <button
               key={choice}
-              onClick={() => { if (!hasAnswered) { selectAnswer(currentQ.id, choice); setShowRationale(true); } }}
+              onClick={() => {
+                if (!hasAnswered) {
+                  selectAnswer(currentQ.id, choice);
+                  setShowRationale(true);
+                }
+              }}
               disabled={hasAnswered}
               className={`w-full panel-card p-4 rounded-sm flex items-center gap-3 transition-all text-left ${
-                showResult && isCorrect ? "border-green-400/60 bg-green-400/5"
-                : showResult && selected && !isCorrect ? "border-destructive/60 bg-destructive/5"
-                : selected ? "border-primary/60 bg-primary/5"
-                : "hover:border-primary/30"
+                showResult && isCorrect
+                  ? "border-green-400/60 bg-green-400/5"
+                  : showResult && selected && !isCorrect
+                    ? "border-destructive/60 bg-destructive/5"
+                    : selected
+                      ? "border-primary/60 bg-primary/5"
+                      : "hover:border-primary/30"
               }`}
             >
-              <span className={`w-7 h-7 rounded-sm flex items-center justify-center font-mono text-xs font-bold ${
-                showResult && isCorrect ? "bg-green-400/20 text-green-400"
-                : showResult && selected && !isCorrect ? "bg-destructive/20 text-destructive"
-                : selected ? "bg-primary/20 text-primary"
-                : "bg-secondary text-muted-foreground"
-              }`}>{letter}</span>
+              <span
+                className={`w-7 h-7 rounded-sm flex items-center justify-center font-mono text-xs font-bold ${
+                  showResult && isCorrect
+                    ? "bg-green-400/20 text-green-400"
+                    : showResult && selected && !isCorrect
+                      ? "bg-destructive/20 text-destructive"
+                      : selected
+                        ? "bg-primary/20 text-primary"
+                        : "bg-secondary text-muted-foreground"
+                }`}
+              >
+                {letter}
+              </span>
               <span className="text-sm text-foreground">{choice}</span>
-              {showResult && isCorrect && <CheckCircle className="w-4 h-4 text-green-400 ml-auto" />}
-              {showResult && selected && !isCorrect && <XCircle className="w-4 h-4 text-destructive ml-auto" />}
+              {showResult && isCorrect && (
+                <CheckCircle className="w-4 h-4 text-green-400 ml-auto" />
+              )}
+              {showResult && selected && !isCorrect && (
+                <XCircle className="w-4 h-4 text-destructive ml-auto" />
+              )}
             </button>
           );
         })}
@@ -222,10 +294,16 @@ function ExamContent() {
           <div className="panel-card p-4 rounded-sm border-l-2 border-l-primary">
             <div className="flex items-center gap-2 mb-2">
               <BookOpen className="w-3.5 h-3.5 text-primary" />
-              <span className="font-mono text-xs font-bold text-primary">{currentQ.nec_article}</span>
+              <span className="font-mono text-xs font-bold text-primary">
+                {currentQ.nec_article}
+              </span>
             </div>
-            <p className="text-sm text-muted-foreground leading-relaxed">{currentQ.explanation}</p>
-            <p className="mt-3 text-xs text-muted-foreground italic">Open your code book to verify this reference.</p>
+            <p className="text-sm text-muted-foreground leading-relaxed">
+              {currentQ.explanation}
+            </p>
+            <p className="mt-3 text-xs text-muted-foreground italic">
+              Open your code book to verify this reference.
+            </p>
           </div>
         </div>
       )}
@@ -235,7 +313,9 @@ function ExamContent() {
           onClick={nextQuestion}
           className="w-full bg-primary text-primary-foreground py-3 rounded-sm font-mono text-sm font-bold uppercase tracking-wider hover:brightness-110 transition-all"
         >
-          {currentIndex < questions.length - 1 ? "NEXT QUESTION →" : "FINISH EXAM"}
+          {currentIndex < questions.length - 1
+            ? "NEXT QUESTION →"
+            : "FINISH EXAM"}
         </button>
       )}
     </div>
diff --git a/client/src/pages/Home.tsx b/client/src/pages/Home.tsx
index 8b4b79b..c8f09e5 100644
--- a/client/src/pages/Home.tsx
+++ b/client/src/pages/Home.tsx
@@ -2,7 +2,7 @@ import { useAuth } from "@/_core/hooks/useAuth";
 import { Button } from "@/components/ui/button";
 import { Loader2 } from "lucide-react";
 import { getLoginUrl } from "@/const";
-import { Streamdown } from 'streamdown';
+import { Streamdown } from "streamdown";
 
 /**
  * All content in this page are only for example, replace with your own feature implementation
diff --git a/client/src/pages/Onboarding.tsx b/client/src/pages/Onboarding.tsx
index bb19cf4..1604d27 100644
--- a/client/src/pages/Onboarding.tsx
+++ b/client/src/pages/Onboarding.tsx
@@ -103,7 +103,7 @@ function HighlightedText({
   return (
     <span>
       {parts.map((part, i) =>
-        highlights.some((h) => h.toLowerCase() === part.toLowerCase()) ? (
+        highlights.some(h => h.toLowerCase() === part.toLowerCase()) ? (
           <mark
             key={i}
             className="bg-amber-400/25 text-amber-300 px-0.5 rounded font-semibold not-italic"
@@ -141,10 +141,16 @@ function Step1() {
       {/* Sample question card */}
       <div className="rounded-lg border border-border bg-card p-5 space-y-4">
         <div className="flex items-center gap-2">
-          <Badge variant="outline" className="text-amber-400 border-amber-400/40 font-mono text-xs">
+          <Badge
+            variant="outline"
+            className="text-amber-400 border-amber-400/40 font-mono text-xs"
+          >
             SAMPLE QUESTION
           </Badge>
-          <Badge variant="outline" className="text-muted-foreground font-mono text-xs">
+          <Badge
+            variant="outline"
+            className="text-muted-foreground font-mono text-xs"
+          >
             Motor / Branch Circuit
           </Badge>
         </div>
@@ -244,8 +250,8 @@ function Step2() {
                 isTerm
                   ? "text-amber-400 font-bold cursor-pointer hover:bg-amber-400/10 px-1 rounded"
                   : isSubEntry
-                  ? "text-muted-foreground pl-4"
-                  : "text-foreground/70"
+                    ? "text-muted-foreground pl-4"
+                    : "text-foreground/70"
               }`}
               onClick={isTerm ? () => setSelected(line) : undefined}
             >
@@ -295,11 +301,9 @@ function Step3() {
         </h2>
         <p className="text-muted-foreground">
           You have your article number:{" "}
-          <span className="text-yellow-400 font-mono font-bold">
-            210.19(A)
-          </span>
-          . Now flip to it. Articles are numbered sequentially — use the
-          running header at the top of each page to navigate fast.
+          <span className="text-yellow-400 font-mono font-bold">210.19(A)</span>
+          . Now flip to it. Articles are numbered sequentially — use the running
+          header at the top of each page to navigate fast.
         </p>
       </div>
 
@@ -309,9 +313,7 @@ function Step3() {
           <span className="font-mono text-xs text-muted-foreground uppercase tracking-widest">
             NEC 2026 — Article 210 · Branch Circuits
           </span>
-          <span className="font-mono text-xs text-yellow-400">
-            Page ~70
-          </span>
+          <span className="font-mono text-xs text-yellow-400">Page ~70</span>
         </div>
         <div className="p-5 space-y-3 font-mono text-sm">
           <p className="text-foreground font-bold text-base">
@@ -361,7 +363,9 @@ function Step3() {
             )}
           </div>
           <div className="rounded border border-border p-3 opacity-40">
-            <span className="text-muted-foreground">(B) Household Ranges and Cooking Appliances</span>
+            <span className="text-muted-foreground">
+              (B) Household Ranges and Cooking Appliances
+            </span>
           </div>
           <div className="rounded border border-border p-3 opacity-40">
             <span className="text-muted-foreground">(C) Household Dryers</span>
@@ -396,9 +400,9 @@ function Step4({ onComplete }: { onComplete: () => void }) {
           Select the Answer. Cite the Article.
         </h2>
         <p className="text-muted-foreground">
-          You've navigated to the article. You've found the rule. Now select
-          the answer — and always write the article number next to it. That's
-          your proof.
+          You've navigated to the article. You've found the rule. Now select the
+          answer — and always write the article number next to it. That's your
+          proof.
         </p>
       </div>
 
@@ -412,7 +416,7 @@ function Step4({ onComplete }: { onComplete: () => void }) {
 
       {/* Answer choices */}
       <div className="grid grid-cols-2 gap-3">
-        {choices.map((choice) => {
+        {choices.map(choice => {
           const isSelected = selected === choice;
           const isCorrect = choice === correct;
           const showResult = selected !== null;
@@ -426,8 +430,8 @@ function Step4({ onComplete }: { onComplete: () => void }) {
                   ? isCorrect
                     ? "border-green-400 bg-green-400/15 text-green-400"
                     : isSelected
-                    ? "border-red-400 bg-red-400/15 text-red-400"
-                    : "border-border text-muted-foreground opacity-50"
+                      ? "border-red-400 bg-red-400/15 text-red-400"
+                      : "border-border text-muted-foreground opacity-50"
                   : "border-border hover:border-amber-400/50 hover:bg-amber-400/5 text-foreground cursor-pointer"
               }`}
             >
@@ -450,7 +454,10 @@ function Step4({ onComplete }: { onComplete: () => void }) {
             {SAMPLE_QUESTION.answerExplanation}
           </p>
           <div className="flex items-center gap-2">
-            <Badge variant="outline" className="text-yellow-400 border-yellow-400/40 font-mono text-xs">
+            <Badge
+              variant="outline"
+              className="text-yellow-400 border-yellow-400/40 font-mono text-xs"
+            >
               Citation: Article 210.19(A)(1)
             </Badge>
           </div>
@@ -545,8 +552,8 @@ export default function Onboarding() {
                     isActive
                       ? `${step.bgColor} ${step.color} border ${step.borderColor}`
                       : isDone
-                      ? "text-green-400 opacity-70"
-                      : "text-muted-foreground opacity-40"
+                        ? "text-green-400 opacity-70"
+                        : "text-muted-foreground opacity-40"
                   }`}
                 >
                   <StepIcon className="w-3 h-3 shrink-0" />
@@ -577,7 +584,7 @@ export default function Onboarding() {
                 Step {currentStep} of 4
               </p>
               <Button
-                onClick={() => setCurrentStep((s) => s + 1)}
+                onClick={() => setCurrentStep(s => s + 1)}
                 className="bg-amber-500 hover:bg-amber-400 text-black font-bold"
               >
                 Next Step
diff --git a/client/src/pages/PaymentCancel.tsx b/client/src/pages/PaymentCancel.tsx
index 6cb552c..4b7804b 100644
--- a/client/src/pages/PaymentCancel.tsx
+++ b/client/src/pages/PaymentCancel.tsx
@@ -15,7 +15,9 @@ export default function PaymentCancel() {
           </div>
           <div>
             <p className="stencil-label mb-2">CHECKOUT CANCELED</p>
-            <h1 className="text-2xl font-bold text-foreground mb-3">No charge made.</h1>
+            <h1 className="text-2xl font-bold text-foreground mb-3">
+              No charge made.
+            </h1>
             <p className="text-muted-foreground">
               You can upgrade anytime. Your free access is still active.
             </p>
diff --git a/client/src/pages/PaymentSuccess.tsx b/client/src/pages/PaymentSuccess.tsx
index f008f03..a6e7898 100644
--- a/client/src/pages/PaymentSuccess.tsx
+++ b/client/src/pages/PaymentSuccess.tsx
@@ -23,9 +23,12 @@ export default function PaymentSuccess() {
           </div>
           <div>
             <p className="stencil-label mb-2">PAYMENT CONFIRMED</p>
-            <h1 className="text-2xl font-bold text-foreground mb-3">You're in.</h1>
+            <h1 className="text-2xl font-bold text-foreground mb-3">
+              You're in.
+            </h1>
             <p className="text-muted-foreground">
-              Your Pro access is active. All 65+ NEC training cards and Exam Mode are unlocked.
+              Your Pro access is active. All 65+ NEC training cards and Exam
+              Mode are unlocked.
             </p>
           </div>
           <div className="flex flex-col gap-3">
diff --git a/client/src/pages/Pricing.tsx b/client/src/pages/Pricing.tsx
index a145cd0..38bd8e8 100644
--- a/client/src/pages/Pricing.tsx
+++ b/client/src/pages/Pricing.tsx
@@ -21,19 +21,22 @@ export default function Pricing() {
   const [loadingPlan, setLoadingPlan] = useState<string | null>(null);
 
   const { data: plans = [] } = trpc.plans.list.useQuery();
-  const { data: subStatus } = trpc.stripe.subscriptionStatus.useQuery(undefined, {
-    enabled: isAuthenticated,
-  });
+  const { data: subStatus } = trpc.stripe.subscriptionStatus.useQuery(
+    undefined,
+    {
+      enabled: isAuthenticated,
+    }
+  );
 
   const createCheckout = trpc.stripe.createCheckoutSession.useMutation({
-    onSuccess: (data) => {
+    onSuccess: data => {
       if (data.url) {
         toast.info("Redirecting to checkout...");
         window.open(data.url, "_blank");
       }
       setLoadingPlan(null);
     },
-    onError: (err) => {
+    onError: err => {
       toast.error(err.message || "Checkout failed. Please try again.");
       setLoadingPlan(null);
     },
@@ -49,12 +52,16 @@ export default function Pricing() {
   };
 
   const isCurrentPlan = (planId: string) => {
-    if (planId === "free" && (!subStatus?.status || subStatus.status === "none")) return true;
+    if (
+      planId === "free" &&
+      (!subStatus?.status || subStatus.status === "none")
+    )
+      return true;
     return subStatus?.plan === planId && subStatus.status === "active";
   };
 
-  const freePlan = plans.find((p) => p.id === "free");
-  const lifetimePlan = plans.find((p) => p.id === "lifetime");
+  const freePlan = plans.find(p => p.id === "free");
+  const lifetimePlan = plans.find(p => p.id === "lifetime");
 
   return (
     <AppLayout>
@@ -70,8 +77,8 @@ export default function Pricing() {
             Stop guessing. Start finding.
           </h1>
           <p className="text-muted-foreground text-lg max-w-xl mx-auto">
-            Code Compass teaches you to find any NEC answer in under 60 seconds —
-            the same skill journeyman and master electricians use on the job.
+            Code Compass teaches you to find any NEC answer in under 60 seconds
+            — the same skill journeyman and master electricians use on the job.
           </p>
         </div>
 
@@ -89,7 +96,9 @@ export default function Pricing() {
 
               <div className="mb-4">
                 <span className="text-4xl font-bold text-foreground">$0</span>
-                <span className="text-muted-foreground text-sm ml-2">forever</span>
+                <span className="text-muted-foreground text-sm ml-2">
+                  forever
+                </span>
               </div>
 
               <p className="text-sm text-muted-foreground mb-6">
@@ -97,7 +106,7 @@ export default function Pricing() {
               </p>
 
               <ul className="space-y-2 mb-8 flex-1">
-                {freePlan.features.map((f) => (
+                {freePlan.features.map(f => (
                   <li key={f} className="flex items-start gap-2 text-sm">
                     <Check className="w-4 h-4 text-muted-foreground flex-shrink-0 mt-0.5" />
                     <span className="text-foreground/80">{f}</span>
@@ -106,7 +115,11 @@ export default function Pricing() {
               </ul>
 
               {isCurrentPlan("free") ? (
-                <Button variant="outline" disabled className="w-full font-mono text-xs tracking-wider">
+                <Button
+                  variant="outline"
+                  disabled
+                  className="w-full font-mono text-xs tracking-wider"
+                >
                   CURRENT PLAN
                 </Button>
               ) : (
@@ -138,17 +151,23 @@ export default function Pricing() {
               </div>
 
               <div className="mb-1">
-                <span className="text-4xl font-bold text-foreground">$39.99</span>
-                <span className="text-muted-foreground text-sm ml-2">one-time</span>
+                <span className="text-4xl font-bold text-foreground">
+                  $39.99
+                </span>
+                <span className="text-muted-foreground text-sm ml-2">
+                  one-time
+                </span>
               </div>
-              <p className="text-xs text-primary font-mono mb-4">NO RECURRING FEES. EVER.</p>
+              <p className="text-xs text-primary font-mono mb-4">
+                NO RECURRING FEES. EVER.
+              </p>
 
               <p className="text-sm text-muted-foreground mb-6">
                 {lifetimePlan.description}
               </p>
 
               <ul className="space-y-2 mb-8 flex-1">
-                {lifetimePlan.features.map((f) => (
+                {lifetimePlan.features.map(f => (
                   <li key={f} className="flex items-start gap-2 text-sm">
                     <Check className="w-4 h-4 text-primary flex-shrink-0 mt-0.5" />
                     <span className="text-foreground/80">{f}</span>
@@ -157,7 +176,11 @@ export default function Pricing() {
               </ul>
 
               {isCurrentPlan("lifetime") ? (
-                <Button variant="outline" disabled className="w-full font-mono text-xs tracking-wider">
+                <Button
+                  variant="outline"
+                  disabled
+                  className="w-full font-mono text-xs tracking-wider"
+                >
                   YOU HAVE LIFETIME ACCESS
                 </Button>
               ) : (
@@ -166,7 +189,9 @@ export default function Pricing() {
                   disabled={loadingPlan === "lifetime"}
                   onClick={() => handleCheckout("lifetime")}
                 >
-                  {loadingPlan === "lifetime" ? "LOADING..." : "GET LIFETIME ACCESS — $39.99"}
+                  {loadingPlan === "lifetime"
+                    ? "LOADING..."
+                    : "GET LIFETIME ACCESS — $39.99"}
                 </Button>
               )}
             </div>
@@ -176,14 +201,18 @@ export default function Pricing() {
         {/* Trust signal */}
         <div className="max-w-3xl mx-auto mb-8 flex items-center justify-center gap-2 text-sm text-muted-foreground">
           <Zap className="w-4 h-4 text-primary" />
-          <span>Instant access after payment. No subscription. Cancel nothing.</span>
+          <span>
+            Instant access after payment. No subscription. Cancel nothing.
+          </span>
         </div>
 
         {/* Free NEC Access Banner */}
         <div className="max-w-3xl mx-auto mb-8 p-4 border border-border rounded-sm bg-card flex items-start gap-3">
           <BookOpen className="w-5 h-5 text-primary flex-shrink-0 mt-0.5" />
           <div>
-            <p className="text-sm font-medium text-foreground mb-1">Free NEC Access via NFPA</p>
+            <p className="text-sm font-medium text-foreground mb-1">
+              Free NEC Access via NFPA
+            </p>
             <p className="text-xs text-muted-foreground">
               NFPA provides free online read-only access to NFPA 70 (NEC).{" "}
               <a
@@ -204,8 +233,9 @@ export default function Pricing() {
         {import.meta.env.DEV && (
           <div className="max-w-3xl mx-auto mb-10 p-3 border border-border rounded-sm bg-card">
             <p className="text-xs text-muted-foreground text-center font-mono">
-              TEST MODE — Use card <span className="text-primary">4242 4242 4242 4242</span> · any future date · any CVC.
-              Live payments activate after Stripe KYC.
+              TEST MODE — Use card{" "}
+              <span className="text-primary">4242 4242 4242 4242</span> · any
+              future date · any CVC. Live payments activate after Stripe KYC.
             </p>
           </div>
         )}
@@ -237,7 +267,10 @@ export default function Pricing() {
               a: "If it does not help you find NEC answers faster, email support within 30 days for a full refund. No questions asked.",
             },
           ].map(({ q, a }) => (
-            <div key={q} className="border border-border rounded-sm p-4 bg-card">
+            <div
+              key={q}
+              className="border border-border rounded-sm p-4 bg-card"
+            >
               <p className="font-medium text-foreground text-sm mb-1">{q}</p>
               <p className="text-sm text-muted-foreground">{a}</p>
             </div>
diff --git a/client/src/pages/QuizMode.tsx b/client/src/pages/QuizMode.tsx
index ee5538f..0ec0aed 100644
--- a/client/src/pages/QuizMode.tsx
+++ b/client/src/pages/QuizMode.tsx
@@ -6,7 +6,14 @@ import { useState, useCallback } from "react";
 import AppLayout from "@/components/AppLayout";
 import { PaywallGate } from "@/components/PaywallGate";
 import { getRandomQuestions, type QuestionCard } from "@/data/questionBank";
-import { Zap, CheckCircle, XCircle, BookOpen, RotateCcw, ArrowRight } from "lucide-react";
+import {
+  Zap,
+  CheckCircle,
+  XCircle,
+  BookOpen,
+  RotateCcw,
+  ArrowRight,
+} from "lucide-react";
 import BackButton from "@/components/BackButton";
 import LookupGuide from "@/components/LookupGuide";
 
@@ -19,14 +26,17 @@ function QuizContent() {
   const [answers, setAnswers] = useState<Record<string, string>>({});
   const [revealed, setRevealed] = useState(false);
 
-  const startQuiz = useCallback((count: number, difficulty?: QuestionCard["difficulty"]) => {
-    const q = getRandomQuestions(count, difficulty);
-    setQuestions(q);
-    setAnswers({});
-    setCurrentIndex(0);
-    setRevealed(false);
-    setState("active");
-  }, []);
+  const startQuiz = useCallback(
+    (count: number, difficulty?: QuestionCard["difficulty"]) => {
+      const q = getRandomQuestions(count, difficulty);
+      setQuestions(q);
+      setAnswers({});
+      setCurrentIndex(0);
+      setRevealed(false);
+      setState("active");
+    },
+    []
+  );
 
   const selectAnswer = (questionId: string, answer: string) => {
     if (revealed) return;
@@ -43,7 +53,10 @@ function QuizContent() {
     }
   };
 
-  const score = questions.reduce((acc, q) => acc + (answers[q.id] === q.correct_answer ? 1 : 0), 0);
+  const score = questions.reduce(
+    (acc, q) => acc + (answers[q.id] === q.correct_answer ? 1 : 0),
+    0
+  );
 
   if (state === "setup") {
     return (
@@ -51,9 +64,12 @@ function QuizContent() {
         <BackButton fallback="/" label="Back to Panel" className="-ml-3" />
         <div>
           <p className="stencil-label mb-2">QUICK DRILL</p>
-          <h2 className="text-2xl font-bold text-foreground">Rapid-Fire Practice</h2>
+          <h2 className="text-2xl font-bold text-foreground">
+            Rapid-Fire Practice
+          </h2>
           <p className="text-muted-foreground mt-2 text-sm">
-            No timer. Instant feedback. Perfect for building muscle memory on NEC lookups.
+            No timer. Instant feedback. Perfect for building muscle memory on
+            NEC lookups.
           </p>
         </div>
         <div>
@@ -65,7 +81,9 @@ function QuizContent() {
                 onClick={() => startQuiz(count)}
                 className="panel-card p-4 rounded-sm text-center hover:border-primary/40 transition-all"
               >
-                <p className="text-2xl font-mono font-bold text-primary">{count}</p>
+                <p className="text-2xl font-mono font-bold text-primary">
+                  {count}
+                </p>
                 <p className="stencil-label mt-1">QUESTIONS</p>
               </button>
             ))}
@@ -81,7 +99,9 @@ function QuizContent() {
                 className="panel-card p-4 rounded-sm text-center hover:border-primary/40 transition-all"
               >
                 <Zap className="w-4 h-4 text-primary mx-auto mb-2" />
-                <p className="font-mono text-sm font-bold text-foreground uppercase">{diff}</p>
+                <p className="font-mono text-sm font-bold text-foreground uppercase">
+                  {diff}
+                </p>
                 <p className="stencil-label mt-1">5 QUESTIONS</p>
               </button>
             ))}
@@ -98,8 +118,12 @@ function QuizContent() {
         <div className="panel-card p-8 rounded-sm text-center">
           <Zap className="w-8 h-8 text-primary mx-auto mb-4" />
           <p className="stencil-label mb-2">DRILL COMPLETE</p>
-          <p className="text-4xl font-mono font-bold text-foreground">{score}/{questions.length}</p>
-          <p className="text-muted-foreground font-mono text-sm mt-2">{percentage}% accuracy</p>
+          <p className="text-4xl font-mono font-bold text-foreground">
+            {score}/{questions.length}
+          </p>
+          <p className="text-muted-foreground font-mono text-sm mt-2">
+            {percentage}% accuracy
+          </p>
           <div className="mt-6 flex gap-3 justify-center">
             <button
               onClick={() => startQuiz(questions.length)}
@@ -116,22 +140,35 @@ function QuizContent() {
             </button>
           </div>
         </div>
-        {questions.filter(q => answers[q.id] !== q.correct_answer).length > 0 && (
+        {questions.filter(q => answers[q.id] !== q.correct_answer).length >
+          0 && (
           <div>
             <p className="stencil-label mb-3">REVIEW MISSED</p>
             <div className="space-y-2">
-              {questions.filter(q => answers[q.id] !== q.correct_answer).map(q => (
-                <div key={q.id} className="panel-card p-4 rounded-sm">
-                  <p className="text-sm text-foreground font-medium mb-2">{q.question}</p>
-                  <p className="text-xs text-green-400 font-mono">✓ {q.correct_answer}</p>
-                  <div className="flex items-center gap-2 mt-2 flex-wrap">
-                    <BookOpen className="w-3 h-3 text-primary" />
-                    <span className="font-mono text-xs text-primary">{q.nec_article}</span>
-                    <span className="text-xs text-muted-foreground">· index:</span>
-                    <span className="text-xs text-foreground">{q.lookup_path.index_keywords[0]}</span>
+              {questions
+                .filter(q => answers[q.id] !== q.correct_answer)
+                .map(q => (
+                  <div key={q.id} className="panel-card p-4 rounded-sm">
+                    <p className="text-sm text-foreground font-medium mb-2">
+                      {q.question}
+                    </p>
+                    <p className="text-xs text-green-400 font-mono">
+                      ✓ {q.correct_answer}
+                    </p>
+                    <div className="flex items-center gap-2 mt-2 flex-wrap">
+                      <BookOpen className="w-3 h-3 text-primary" />
+                      <span className="font-mono text-xs text-primary">
+                        {q.nec_article}
+                      </span>
+                      <span className="text-xs text-muted-foreground">
+                        · index:
+                      </span>
+                      <span className="text-xs text-foreground">
+                        {q.lookup_path.index_keywords[0]}
+                      </span>
+                    </div>
                   </div>
-                </div>
-              ))}
+                ))}
             </div>
           </div>
         )}
@@ -146,23 +183,37 @@ function QuizContent() {
   return (
     <div className="p-6 lg:p-8 max-w-2xl mx-auto space-y-6">
       <div className="flex items-center justify-between">
-        <span className="stencil-label">DRILL {currentIndex + 1} OF {questions.length}</span>
-        <span className="font-mono text-xs text-green-400">{score} correct</span>
+        <span className="stencil-label">
+          DRILL {currentIndex + 1} OF {questions.length}
+        </span>
+        <span className="font-mono text-xs text-green-400">
+          {score} correct
+        </span>
       </div>
       <div className="w-full h-1 bg-secondary rounded-full overflow-hidden">
         <div
           className="h-full bg-primary transition-all duration-300"
-          style={{ width: `${((currentIndex) / questions.length) * 100}%` }}
+          style={{ width: `${(currentIndex / questions.length) * 100}%` }}
         />
       </div>
       <div className="panel-card p-6 rounded-sm">
         <div className="flex items-center gap-2 mb-3">
-          <span className={`px-2 py-0.5 rounded-sm text-[10px] font-mono font-bold uppercase tracking-wider ${
-            currentQ.difficulty === "master" ? "bg-primary/20 text-primary" : "bg-secondary text-muted-foreground"
-          }`}>{currentQ.difficulty}</span>
-          <span className="font-mono text-xs text-muted-foreground">{currentQ.nec_article}</span>
+          <span
+            className={`px-2 py-0.5 rounded-sm text-[10px] font-mono font-bold uppercase tracking-wider ${
+              currentQ.difficulty === "master"
+                ? "bg-primary/20 text-primary"
+                : "bg-secondary text-muted-foreground"
+            }`}
+          >
+            {currentQ.difficulty}
+          </span>
+          <span className="font-mono text-xs text-muted-foreground">
+            {currentQ.nec_article}
+          </span>
         </div>
-        <p className="text-foreground font-medium leading-relaxed">{currentQ.question}</p>
+        <p className="text-foreground font-medium leading-relaxed">
+          {currentQ.question}
+        </p>
       </div>
       <div className="space-y-2">
         {currentQ.choices.map((choice, i) => {
@@ -175,19 +226,31 @@ function QuizContent() {
               onClick={() => selectAnswer(currentQ.id, choice)}
               disabled={revealed}
               className={`w-full panel-card p-4 rounded-sm flex items-center gap-3 transition-all text-left ${
-                revealed && isCorrect ? "border-green-400/60 bg-green-400/5"
-                : revealed && selected && !isCorrect ? "border-destructive/60 bg-destructive/5"
-                : "hover:border-primary/30"
+                revealed && isCorrect
+                  ? "border-green-400/60 bg-green-400/5"
+                  : revealed && selected && !isCorrect
+                    ? "border-destructive/60 bg-destructive/5"
+                    : "hover:border-primary/30"
               }`}
             >
-              <span className={`w-7 h-7 rounded-sm flex items-center justify-center font-mono text-xs font-bold ${
-                revealed && isCorrect ? "bg-green-400/20 text-green-400"
-                : revealed && selected && !isCorrect ? "bg-destructive/20 text-destructive"
-                : "bg-secondary text-muted-foreground"
-              }`}>{letter}</span>
+              <span
+                className={`w-7 h-7 rounded-sm flex items-center justify-center font-mono text-xs font-bold ${
+                  revealed && isCorrect
+                    ? "bg-green-400/20 text-green-400"
+                    : revealed && selected && !isCorrect
+                      ? "bg-destructive/20 text-destructive"
+                      : "bg-secondary text-muted-foreground"
+                }`}
+              >
+                {letter}
+              </span>
               <span className="text-sm text-foreground flex-1">{choice}</span>
-              {revealed && isCorrect && <CheckCircle className="w-4 h-4 text-green-400" />}
-              {revealed && selected && !isCorrect && <XCircle className="w-4 h-4 text-destructive" />}
+              {revealed && isCorrect && (
+                <CheckCircle className="w-4 h-4 text-green-400" />
+              )}
+              {revealed && selected && !isCorrect && (
+                <XCircle className="w-4 h-4 text-destructive" />
+              )}
             </button>
           );
         })}
@@ -196,7 +259,9 @@ function QuizContent() {
         <>
           <LookupGuide lookup={currentQ.lookup_path} />
           <div className="panel-card p-4 rounded-sm border-l-2 border-l-primary">
-            <p className="text-sm text-muted-foreground leading-relaxed">{currentQ.explanation}</p>
+            <p className="text-sm text-muted-foreground leading-relaxed">
+              {currentQ.explanation}
+            </p>
             <p className="mt-2 text-xs text-muted-foreground italic">
               Open your code book to {currentQ.nec_article} to verify.
             </p>
diff --git a/client/src/pages/SearchMode.tsx b/client/src/pages/SearchMode.tsx
index 080fc82..6d4f4e2 100644
--- a/client/src/pages/SearchMode.tsx
+++ b/client/src/pages/SearchMode.tsx
@@ -4,14 +4,20 @@
  */
 import { useState, useMemo } from "react";
 import AppLayout from "@/components/AppLayout";
-import { searchQuestions, questionBank, type QuestionCard } from "@/data/questionBank";
+import {
+  searchQuestions,
+  questionBank,
+  type QuestionCard,
+} from "@/data/questionBank";
 import { Search, BookOpen, Tag, Filter } from "lucide-react";
 import BackButton from "@/components/BackButton";
 import { PaywallGate } from "@/components/PaywallGate";
 
 export default function SearchMode() {
   const [query, setQuery] = useState("");
-  const [filterDifficulty, setFilterDifficulty] = useState<"all" | "journeyman" | "master">("all");
+  const [filterDifficulty, setFilterDifficulty] = useState<
+    "all" | "journeyman" | "master"
+  >("all");
 
   const results = useMemo(() => {
     let items: QuestionCard[];
@@ -35,138 +41,161 @@ export default function SearchMode() {
   return (
     <AppLayout>
       <PaywallGate featureName="Code Lookup">
-      <div className="p-6 lg:p-8 space-y-6">
-        <BackButton fallback="/" label="Back to Panel" className="-ml-3" />
-        {/* Header */}
-        <div>
-          <p className="stencil-label mb-2">CODE LOOKUP</p>
-          <h2 className="text-2xl font-bold text-foreground">Search the NEC</h2>
-          <p className="text-muted-foreground mt-1 text-sm">
-            Search by article number, keyword, or topic. Get plain-English summaries with page references.
-          </p>
-        </div>
+        <div className="p-6 lg:p-8 space-y-6">
+          <BackButton fallback="/" label="Back to Panel" className="-ml-3" />
+          {/* Header */}
+          <div>
+            <p className="stencil-label mb-2">CODE LOOKUP</p>
+            <h2 className="text-2xl font-bold text-foreground">
+              Search the NEC
+            </h2>
+            <p className="text-muted-foreground mt-1 text-sm">
+              Search by article number, keyword, or topic. Get plain-English
+              summaries with page references.
+            </p>
+          </div>
 
-        {/* Search Bar */}
-        <div className="panel-card rounded-sm p-1 flex items-center gap-2">
-          <Search className="w-4 h-4 text-muted-foreground ml-3" />
-          <input
-            type="text"
-            value={query}
-            onChange={e => setQuery(e.target.value)}
-            placeholder="Search by article (e.g. 310.16), keyword (e.g. ampacity), or topic..."
-            className="flex-1 bg-transparent py-3 px-2 text-sm text-foreground placeholder:text-muted-foreground focus:outline-none font-mono"
-          />
-          {query && (
-            <button
-              onClick={() => setQuery("")}
-              className="mr-3 text-xs text-muted-foreground hover:text-foreground font-mono"
-            >
-              CLEAR
-            </button>
-          )}
-        </div>
+          {/* Search Bar */}
+          <div className="panel-card rounded-sm p-1 flex items-center gap-2">
+            <Search className="w-4 h-4 text-muted-foreground ml-3" />
+            <input
+              type="text"
+              value={query}
+              onChange={e => setQuery(e.target.value)}
+              placeholder="Search by article (e.g. 310.16), keyword (e.g. ampacity), or topic..."
+              className="flex-1 bg-transparent py-3 px-2 text-sm text-foreground placeholder:text-muted-foreground focus:outline-none font-mono"
+            />
+            {query && (
+              <button
+                onClick={() => setQuery("")}
+                className="mr-3 text-xs text-muted-foreground hover:text-foreground font-mono"
+              >
+                CLEAR
+              </button>
+            )}
+          </div>
 
-        {/* Filters */}
-        <div className="flex items-center gap-3 flex-wrap">
-          <Filter className="w-3.5 h-3.5 text-muted-foreground" />
-          {(["all", "journeyman", "master"] as const).map(level => (
-            <button
-              key={level}
-              onClick={() => setFilterDifficulty(level)}
-              className={`px-3 py-1.5 rounded-sm font-mono text-xs font-bold uppercase tracking-wider transition-all ${
-                filterDifficulty === level
-                  ? "bg-primary/20 text-primary border border-primary/40"
-                  : "bg-secondary text-muted-foreground hover:text-foreground"
-              }`}
-            >
-              {level}
-            </button>
-          ))}
-          <span className="ml-auto font-mono text-xs text-muted-foreground">
-            {results.length} result{results.length !== 1 ? "s" : ""}
-          </span>
-        </div>
+          {/* Filters */}
+          <div className="flex items-center gap-3 flex-wrap">
+            <Filter className="w-3.5 h-3.5 text-muted-foreground" />
+            {(["all", "journeyman", "master"] as const).map(level => (
+              <button
+                key={level}
+                onClick={() => setFilterDifficulty(level)}
+                className={`px-3 py-1.5 rounded-sm font-mono text-xs font-bold uppercase tracking-wider transition-all ${
+                  filterDifficulty === level
+                    ? "bg-primary/20 text-primary border border-primary/40"
+                    : "bg-secondary text-muted-foreground hover:text-foreground"
+                }`}
+              >
+                {level}
+              </button>
+            ))}
+            <span className="ml-auto font-mono text-xs text-muted-foreground">
+              {results.length} result{results.length !== 1 ? "s" : ""}
+            </span>
+          </div>
 
-        {/* Quick Tags */}
-        <div className="flex flex-wrap gap-2">
-          {allTags.slice(0, 12).map(tag => (
-            <button
-              key={tag}
-              onClick={() => setQuery(tag)}
-              className={`flex items-center gap-1 px-2 py-1 rounded-sm text-xs font-mono transition-all ${
-                query === tag
-                  ? "bg-primary/20 text-primary border border-primary/40"
-                  : "bg-secondary text-muted-foreground hover:text-foreground"
-              }`}
-            >
-              <Tag className="w-2.5 h-2.5" />
-              {tag}
-            </button>
-          ))}
-        </div>
+          {/* Quick Tags */}
+          <div className="flex flex-wrap gap-2">
+            {allTags.slice(0, 12).map(tag => (
+              <button
+                key={tag}
+                onClick={() => setQuery(tag)}
+                className={`flex items-center gap-1 px-2 py-1 rounded-sm text-xs font-mono transition-all ${
+                  query === tag
+                    ? "bg-primary/20 text-primary border border-primary/40"
+                    : "bg-secondary text-muted-foreground hover:text-foreground"
+                }`}
+              >
+                <Tag className="w-2.5 h-2.5" />
+                {tag}
+              </button>
+            ))}
+          </div>
 
-        {/* Results */}
-        <div className="space-y-3">
-          {results.map(q => (
-            <div key={q.id} className="panel-card p-5 rounded-sm hover:border-primary/30 transition-all">
-              <div className="flex items-start justify-between gap-4">
-                <div className="flex-1">
-                  <div className="flex items-center gap-2 mb-2">
-                    <BookOpen className="w-3.5 h-3.5 text-primary" />
-                    <span className="font-mono text-xs font-bold text-primary">{q.nec_article}</span>
-                    <span className={`px-2 py-0.5 rounded-sm text-[10px] font-mono font-bold uppercase tracking-wider ${
-                      q.difficulty === "master" ? "bg-primary/20 text-primary" : "bg-secondary text-muted-foreground"
-                    }`}>
-                      {q.difficulty}
-                    </span>
-                  </div>
-                  <p className="text-sm text-foreground font-medium leading-relaxed mb-2">
-                    {q.question}
-                  </p>
-                  <p className="text-sm text-muted-foreground leading-relaxed">
-                    <span className="text-green-400 font-mono font-bold">→</span> {q.explanation}
-                  </p>
-                  <div className="mt-3 flex items-start gap-2 text-xs">
-                    <span className="font-mono text-muted-foreground uppercase tracking-wide flex-shrink-0">Index:</span>
-                    <div className="flex flex-wrap gap-1.5">
-                      {q.lookup_path.index_keywords.map(kw => (
+          {/* Results */}
+          <div className="space-y-3">
+            {results.map(q => (
+              <div
+                key={q.id}
+                className="panel-card p-5 rounded-sm hover:border-primary/30 transition-all"
+              >
+                <div className="flex items-start justify-between gap-4">
+                  <div className="flex-1">
+                    <div className="flex items-center gap-2 mb-2">
+                      <BookOpen className="w-3.5 h-3.5 text-primary" />
+                      <span className="font-mono text-xs font-bold text-primary">
+                        {q.nec_article}
+                      </span>
+                      <span
+                        className={`px-2 py-0.5 rounded-sm text-[10px] font-mono font-bold uppercase tracking-wider ${
+                          q.difficulty === "master"
+                            ? "bg-primary/20 text-primary"
+                            : "bg-secondary text-muted-foreground"
+                        }`}
+                      >
+                        {q.difficulty}
+                      </span>
+                    </div>
+                    <p className="text-sm text-foreground font-medium leading-relaxed mb-2">
+                      {q.question}
+                    </p>
+                    <p className="text-sm text-muted-foreground leading-relaxed">
+                      <span className="text-green-400 font-mono font-bold">
+                        →
+                      </span>{" "}
+                      {q.explanation}
+                    </p>
+                    <div className="mt-3 flex items-start gap-2 text-xs">
+                      <span className="font-mono text-muted-foreground uppercase tracking-wide flex-shrink-0">
+                        Index:
+                      </span>
+                      <div className="flex flex-wrap gap-1.5">
+                        {q.lookup_path.index_keywords.map(kw => (
+                          <span
+                            key={kw}
+                            className="font-medium text-foreground bg-primary/15 border border-primary/30 rounded-sm px-2 py-0.5"
+                          >
+                            {kw}
+                          </span>
+                        ))}
+                      </div>
+                    </div>
+                    <div className="flex items-center gap-2 mt-3 flex-wrap">
+                      {q.tags.map(tag => (
                         <span
-                          key={kw}
-                          className="font-medium text-foreground bg-primary/15 border border-primary/30 rounded-sm px-2 py-0.5"
+                          key={tag}
+                          className="px-2 py-0.5 bg-secondary rounded-sm text-[10px] font-mono text-muted-foreground"
                         >
-                          {kw}
+                          {tag}
                         </span>
                       ))}
                     </div>
                   </div>
-                  <div className="flex items-center gap-2 mt-3 flex-wrap">
-                    {q.tags.map(tag => (
-                      <span
-                        key={tag}
-                        className="px-2 py-0.5 bg-secondary rounded-sm text-[10px] font-mono text-muted-foreground"
-                      >
-                        {tag}
-                      </span>
-                    ))}
+                  <div className="text-right flex-shrink-0">
+                    <p className="font-mono text-lg font-bold text-primary">
+                      {q.correct_answer}
+                    </p>
+                    <p className="stencil-label mt-1">ANSWER</p>
                   </div>
                 </div>
-                <div className="text-right flex-shrink-0">
-                  <p className="font-mono text-lg font-bold text-primary">{q.correct_answer}</p>
-                  <p className="stencil-label mt-1">ANSWER</p>
-                </div>
               </div>
-            </div>
-          ))}
+            ))}
 
-          {results.length === 0 && (
-            <div className="panel-card p-8 rounded-sm text-center">
-              <Search className="w-8 h-8 text-muted-foreground mx-auto mb-3" />
-              <p className="text-muted-foreground font-mono text-sm">No results found for "{query}"</p>
-              <p className="text-xs text-muted-foreground mt-2">Try a different keyword or article number.</p>
-            </div>
-          )}
+            {results.length === 0 && (
+              <div className="panel-card p-8 rounded-sm text-center">
+                <Search className="w-8 h-8 text-muted-foreground mx-auto mb-3" />
+                <p className="text-muted-foreground font-mono text-sm">
+                  No results found for "{query}"
+                </p>
+                <p className="text-xs text-muted-foreground mt-2">
+                  Try a different keyword or article number.
+                </p>
+              </div>
+            )}
+          </div>
         </div>
-      </div>
       </PaywallGate>
     </AppLayout>
   );
diff --git a/codecompass-beta/src/components/ThemeToggle.tsx b/codecompass-beta/src/components/ThemeToggle.tsx
index e8e73c2..c68d9a4 100644
--- a/codecompass-beta/src/components/ThemeToggle.tsx
+++ b/codecompass-beta/src/components/ThemeToggle.tsx
@@ -30,11 +30,7 @@ export function ThemeToggle() {
       aria-label="Toggle theme"
       className="h-9 w-9"
     >
-      {theme === "dark" ? (
-        <Sun className="h-4 w-4" />
-      ) : (
-        <Moon className="h-4 w-4" />
-      )}
+      {theme === "dark" ? <Sun className="h-4 w-4" /> : <Moon className="h-4 w-4" />}
     </Button>
   );
 }
diff --git a/codecompass-beta/src/lib/l5x-parser.ts b/codecompass-beta/src/lib/l5x-parser.ts
index e78922e..358387b 100644
--- a/codecompass-beta/src/lib/l5x-parser.ts
+++ b/codecompass-beta/src/lib/l5x-parser.ts
@@ -219,7 +219,9 @@ function assignCoordinates(
 export function parseL5X(fileBuffer: Buffer): L5XParseResult {
   // CRITICAL: Buffer size validation (prevent memory exhaustion)
   if (fileBuffer.length > 10 * 1024 * 1024) {
-    throw new Error(`L5X file too large: ${(fileBuffer.length / 1024 / 1024).toFixed(2)} MB exceeds 10 MB limit`);
+    throw new Error(
+      `L5X file too large: ${(fileBuffer.length / 1024 / 1024).toFixed(2)} MB exceeds 10 MB limit`,
+    );
   }
 
   const xmlString = fileBuffer.toString("utf-8");
@@ -315,7 +317,10 @@ export function parseL5X(fileBuffer: Buffer): L5XParseResult {
   return {
     metadata,
     routines,
-    routine: routines.length > 0 ? routines[0] : { name: "No routines found", type: "empty", rungs: [], rung_count: 0 },
+    routine:
+      routines.length > 0
+        ? routines[0]
+        : { name: "No routines found", type: "empty", rungs: [], rung_count: 0 },
     tag_inventory: [...knownTags],
     validation_summary: {
       total_rungs: routines.reduce((s, r) => s + r.rung_count, 0),
diff --git a/codecompass-beta/src/lib/svg-renderer.ts b/codecompass-beta/src/lib/svg-renderer.ts
index f98bc46..7df4093 100644
--- a/codecompass-beta/src/lib/svg-renderer.ts
+++ b/codecompass-beta/src/lib/svg-renderer.ts
@@ -236,7 +236,8 @@ export function renderLadderSVG(rungs: L5XRung[], options: RenderOptions = {}):
   // Enforce hard limit
   const MAX_RUNGS = 500;
   const effectiveMaxRungs = Math.min(maxRungs, MAX_RUNGS);
-  const renderRungs = effectiveMaxRungs > 0 ? rungs.slice(0, effectiveMaxRungs) : rungs.slice(0, MAX_RUNGS);
+  const renderRungs =
+    effectiveMaxRungs > 0 ? rungs.slice(0, effectiveMaxRungs) : rungs.slice(0, MAX_RUNGS);
   const numRungs = renderRungs.length;
 
   if (numRungs === 0) {
diff --git a/codecompass-beta/src/routeTree.gen.ts b/codecompass-beta/src/routeTree.gen.ts
index 1f09b90..c75ec39 100644
--- a/codecompass-beta/src/routeTree.gen.ts
+++ b/codecompass-beta/src/routeTree.gen.ts
@@ -8,453 +8,451 @@
 // You should NOT make any changes in this file as it will be overwritten.
 // Additionally, you should also exclude this file from your linter and/or formatter to prevent it from being checked or modified.
 
-import { Route as rootRouteImport } from './routes/__root'
-import { Route as StudyToolsRouteImport } from './routes/study-tools'
-import { Route as SitemapDotxmlRouteImport } from './routes/sitemap[.]xml'
-import { Route as ProfileRouteImport } from './routes/profile'
-import { Route as PracticeTestRouteImport } from './routes/practice-test'
-import { Route as PlcRouteImport } from './routes/plc'
-import { Route as McpRouteImport } from './routes/mcp'
-import { Route as ExamPrepRouteImport } from './routes/exam-prep'
-import { Route as DataCenterRouteImport } from './routes/data-center'
-import { Route as AuthRouteImport } from './routes/auth'
-import { Route as IndexRouteImport } from './routes/index'
-import { Route as ShareTokenRouteImport } from './routes/share.$token'
-import { Route as DevMotorCalcsRouteImport } from './routes/dev.motor-calcs'
-import { Route as CoursesTradeRouteImport } from './routes/courses.$trade'
-import { Route as CourseCourseIdRouteImport } from './routes/course.$courseId'
-import { Route as ApiParseL5xRouteImport } from './routes/api/parse-l5x'
-import { Route as ApiChatRouteImport } from './routes/api/chat'
-import { Route as Char91DotwellKnownChar93OauthProtectedResourceRouteImport } from './routes/[.well-known]/oauth-protected-resource'
-import { Route as Char91DotmcpChar93ListToolsRouteImport } from './routes/[.mcp]/list-tools'
-import { Route as Char91DotmcpChar93InvokeToolToolRouteImport } from './routes/[.mcp]/invoke-tool/$tool'
-import { Route as DotlovableOauthConsentRouteImport } from './routes/[.]lovable.oauth.consent'
-import { Route as ApiPublicShareTokenRouteImport } from './routes/api/public/share.$token'
+import { Route as rootRouteImport } from "./routes/__root";
+import { Route as StudyToolsRouteImport } from "./routes/study-tools";
+import { Route as SitemapDotxmlRouteImport } from "./routes/sitemap[.]xml";
+import { Route as ProfileRouteImport } from "./routes/profile";
+import { Route as PracticeTestRouteImport } from "./routes/practice-test";
+import { Route as PlcRouteImport } from "./routes/plc";
+import { Route as McpRouteImport } from "./routes/mcp";
+import { Route as ExamPrepRouteImport } from "./routes/exam-prep";
+import { Route as DataCenterRouteImport } from "./routes/data-center";
+import { Route as AuthRouteImport } from "./routes/auth";
+import { Route as IndexRouteImport } from "./routes/index";
+import { Route as ShareTokenRouteImport } from "./routes/share.$token";
+import { Route as DevMotorCalcsRouteImport } from "./routes/dev.motor-calcs";
+import { Route as CoursesTradeRouteImport } from "./routes/courses.$trade";
+import { Route as CourseCourseIdRouteImport } from "./routes/course.$courseId";
+import { Route as ApiParseL5xRouteImport } from "./routes/api/parse-l5x";
+import { Route as ApiChatRouteImport } from "./routes/api/chat";
+import { Route as Char91DotwellKnownChar93OauthProtectedResourceRouteImport } from "./routes/[.well-known]/oauth-protected-resource";
+import { Route as Char91DotmcpChar93ListToolsRouteImport } from "./routes/[.mcp]/list-tools";
+import { Route as Char91DotmcpChar93InvokeToolToolRouteImport } from "./routes/[.mcp]/invoke-tool/$tool";
+import { Route as DotlovableOauthConsentRouteImport } from "./routes/[.]lovable.oauth.consent";
+import { Route as ApiPublicShareTokenRouteImport } from "./routes/api/public/share.$token";
 
 const StudyToolsRoute = StudyToolsRouteImport.update({
-  id: '/study-tools',
-  path: '/study-tools',
+  id: "/study-tools",
+  path: "/study-tools",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const SitemapDotxmlRoute = SitemapDotxmlRouteImport.update({
-  id: '/sitemap.xml',
-  path: '/sitemap.xml',
+  id: "/sitemap.xml",
+  path: "/sitemap.xml",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const ProfileRoute = ProfileRouteImport.update({
-  id: '/profile',
-  path: '/profile',
+  id: "/profile",
+  path: "/profile",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const PracticeTestRoute = PracticeTestRouteImport.update({
-  id: '/practice-test',
-  path: '/practice-test',
+  id: "/practice-test",
+  path: "/practice-test",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const PlcRoute = PlcRouteImport.update({
-  id: '/plc',
-  path: '/plc',
+  id: "/plc",
+  path: "/plc",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const McpRoute = McpRouteImport.update({
-  id: '/mcp',
-  path: '/mcp',
+  id: "/mcp",
+  path: "/mcp",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const ExamPrepRoute = ExamPrepRouteImport.update({
-  id: '/exam-prep',
-  path: '/exam-prep',
+  id: "/exam-prep",
+  path: "/exam-prep",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const DataCenterRoute = DataCenterRouteImport.update({
-  id: '/data-center',
-  path: '/data-center',
+  id: "/data-center",
+  path: "/data-center",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const AuthRoute = AuthRouteImport.update({
-  id: '/auth',
-  path: '/auth',
+  id: "/auth",
+  path: "/auth",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const IndexRoute = IndexRouteImport.update({
-  id: '/',
-  path: '/',
+  id: "/",
+  path: "/",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const ShareTokenRoute = ShareTokenRouteImport.update({
-  id: '/share/$token',
-  path: '/share/$token',
+  id: "/share/$token",
+  path: "/share/$token",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const DevMotorCalcsRoute = DevMotorCalcsRouteImport.update({
-  id: '/dev/motor-calcs',
-  path: '/dev/motor-calcs',
+  id: "/dev/motor-calcs",
+  path: "/dev/motor-calcs",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const CoursesTradeRoute = CoursesTradeRouteImport.update({
-  id: '/courses/$trade',
-  path: '/courses/$trade',
+  id: "/courses/$trade",
+  path: "/courses/$trade",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const CourseCourseIdRoute = CourseCourseIdRouteImport.update({
-  id: '/course/$courseId',
-  path: '/course/$courseId',
+  id: "/course/$courseId",
+  path: "/course/$courseId",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const ApiParseL5xRoute = ApiParseL5xRouteImport.update({
-  id: '/api/parse-l5x',
-  path: '/api/parse-l5x',
+  id: "/api/parse-l5x",
+  path: "/api/parse-l5x",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const ApiChatRoute = ApiChatRouteImport.update({
-  id: '/api/chat',
-  path: '/api/chat',
+  id: "/api/chat",
+  path: "/api/chat",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const Char91DotwellKnownChar93OauthProtectedResourceRoute =
   Char91DotwellKnownChar93OauthProtectedResourceRouteImport.update({
-    id: '/.well-known/oauth-protected-resource',
-    path: '/.well-known/oauth-protected-resource',
+    id: "/.well-known/oauth-protected-resource",
+    path: "/.well-known/oauth-protected-resource",
     getParentRoute: () => rootRouteImport,
-  } as any)
-const Char91DotmcpChar93ListToolsRoute =
-  Char91DotmcpChar93ListToolsRouteImport.update({
-    id: '/.mcp/list-tools',
-    path: '/.mcp/list-tools',
-    getParentRoute: () => rootRouteImport,
-  } as any)
-const Char91DotmcpChar93InvokeToolToolRoute =
-  Char91DotmcpChar93InvokeToolToolRouteImport.update({
-    id: '/.mcp/invoke-tool/$tool',
-    path: '/.mcp/invoke-tool/$tool',
-    getParentRoute: () => rootRouteImport,
-  } as any)
+  } as any);
+const Char91DotmcpChar93ListToolsRoute = Char91DotmcpChar93ListToolsRouteImport.update({
+  id: "/.mcp/list-tools",
+  path: "/.mcp/list-tools",
+  getParentRoute: () => rootRouteImport,
+} as any);
+const Char91DotmcpChar93InvokeToolToolRoute = Char91DotmcpChar93InvokeToolToolRouteImport.update({
+  id: "/.mcp/invoke-tool/$tool",
+  path: "/.mcp/invoke-tool/$tool",
+  getParentRoute: () => rootRouteImport,
+} as any);
 const DotlovableOauthConsentRoute = DotlovableOauthConsentRouteImport.update({
-  id: '/.lovable/oauth/consent',
-  path: '/.lovable/oauth/consent',
+  id: "/.lovable/oauth/consent",
+  path: "/.lovable/oauth/consent",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 const ApiPublicShareTokenRoute = ApiPublicShareTokenRouteImport.update({
-  id: '/api/public/share/$token',
-  path: '/api/public/share/$token',
+  id: "/api/public/share/$token",
+  path: "/api/public/share/$token",
   getParentRoute: () => rootRouteImport,
-} as any)
+} as any);
 
 export interface FileRoutesByFullPath {
-  '/': typeof IndexRoute
-  '/auth': typeof AuthRoute
-  '/data-center': typeof DataCenterRoute
-  '/exam-prep': typeof ExamPrepRoute
-  '/mcp': typeof McpRoute
-  '/plc': typeof PlcRoute
-  '/practice-test': typeof PracticeTestRoute
-  '/profile': typeof ProfileRoute
-  '/sitemap.xml': typeof SitemapDotxmlRoute
-  '/study-tools': typeof StudyToolsRoute
-  '/.mcp/list-tools': typeof Char91DotmcpChar93ListToolsRoute
-  '/.well-known/oauth-protected-resource': typeof Char91DotwellKnownChar93OauthProtectedResourceRoute
-  '/api/chat': typeof ApiChatRoute
-  '/api/parse-l5x': typeof ApiParseL5xRoute
-  '/course/$courseId': typeof CourseCourseIdRoute
-  '/courses/$trade': typeof CoursesTradeRoute
-  '/dev/motor-calcs': typeof DevMotorCalcsRoute
-  '/share/$token': typeof ShareTokenRoute
-  '/.lovable/oauth/consent': typeof DotlovableOauthConsentRoute
-  '/.mcp/invoke-tool/$tool': typeof Char91DotmcpChar93InvokeToolToolRoute
-  '/api/public/share/$token': typeof ApiPublicShareTokenRoute
+  "/": typeof IndexRoute;
+  "/auth": typeof AuthRoute;
+  "/data-center": typeof DataCenterRoute;
+  "/exam-prep": typeof ExamPrepRoute;
+  "/mcp": typeof McpRoute;
+  "/plc": typeof PlcRoute;
+  "/practice-test": typeof PracticeTestRoute;
+  "/profile": typeof ProfileRoute;
+  "/sitemap.xml": typeof SitemapDotxmlRoute;
+  "/study-tools": typeof StudyToolsRoute;
+  "/.mcp/list-tools": typeof Char91DotmcpChar93ListToolsRoute;
+  "/.well-known/oauth-protected-resource": typeof Char91DotwellKnownChar93OauthProtectedResourceRoute;
+  "/api/chat": typeof ApiChatRoute;
+  "/api/parse-l5x": typeof ApiParseL5xRoute;
+  "/course/$courseId": typeof CourseCourseIdRoute;
+  "/courses/$trade": typeof CoursesTradeRoute;
+  "/dev/motor-calcs": typeof DevMotorCalcsRoute;
+  "/share/$token": typeof ShareTokenRoute;
+  "/.lovable/oauth/consent": typeof DotlovableOauthConsentRoute;
+  "/.mcp/invoke-tool/$tool": typeof Char91DotmcpChar93InvokeToolToolRoute;
+  "/api/public/share/$token": typeof ApiPublicShareTokenRoute;
 }
 export interface FileRoutesByTo {
-  '/': typeof IndexRoute
-  '/auth': typeof AuthRoute
-  '/data-center': typeof DataCenterRoute
-  '/exam-prep': typeof ExamPrepRoute
-  '/mcp': typeof McpRoute
-  '/plc': typeof PlcRoute
-  '/practice-test': typeof PracticeTestRoute
-  '/profile': typeof ProfileRoute
-  '/sitemap.xml': typeof SitemapDotxmlRoute
-  '/study-tools': typeof StudyToolsRoute
-  '/.mcp/list-tools': typeof Char91DotmcpChar93ListToolsRoute
-  '/.well-known/oauth-protected-resource': typeof Char91DotwellKnownChar93OauthProtectedResourceRoute
-  '/api/chat': typeof ApiChatRoute
-  '/api/parse-l5x': typeof ApiParseL5xRoute
-  '/course/$courseId': typeof CourseCourseIdRoute
-  '/courses/$trade': typeof CoursesTradeRoute
-  '/dev/motor-calcs': typeof DevMotorCalcsRoute
-  '/share/$token': typeof ShareTokenRoute
-  '/.lovable/oauth/consent': typeof DotlovableOauthConsentRoute
-  '/.mcp/invoke-tool/$tool': typeof Char91DotmcpChar93InvokeToolToolRoute
-  '/api/public/share/$token': typeof ApiPublicShareTokenRoute
+  "/": typeof IndexRoute;
+  "/auth": typeof AuthRoute;
+  "/data-center": typeof DataCenterRoute;
+  "/exam-prep": typeof ExamPrepRoute;
+  "/mcp": typeof McpRoute;
+  "/plc": typeof PlcRoute;
+  "/practice-test": typeof PracticeTestRoute;
+  "/profile": typeof ProfileRoute;
+  "/sitemap.xml": typeof SitemapDotxmlRoute;
+  "/study-tools": typeof StudyToolsRoute;
+  "/.mcp/list-tools": typeof Char91DotmcpChar93ListToolsRoute;
+  "/.well-known/oauth-protected-resource": typeof Char91DotwellKnownChar93OauthProtectedResourceRoute;
+  "/api/chat": typeof ApiChatRoute;
+  "/api/parse-l5x": typeof ApiParseL5xRoute;
+  "/course/$courseId": typeof CourseCourseIdRoute;
+  "/courses/$trade": typeof CoursesTradeRoute;
+  "/dev/motor-calcs": typeof DevMotorCalcsRoute;
+  "/share/$token": typeof ShareTokenRoute;
+  "/.lovable/oauth/consent": typeof DotlovableOauthConsentRoute;
+  "/.mcp/invoke-tool/$tool": typeof Char91DotmcpChar93InvokeToolToolRoute;
+  "/api/public/share/$token": typeof ApiPublicShareTokenRoute;
 }
 export interface FileRoutesById {
-  __root__: typeof rootRouteImport
-  '/': typeof IndexRoute
-  '/auth': typeof AuthRoute
-  '/data-center': typeof DataCenterRoute
-  '/exam-prep': typeof ExamPrepRoute
-  '/mcp': typeof McpRoute
-  '/plc': typeof PlcRoute
-  '/practice-test': typeof PracticeTestRoute
-  '/profile': typeof ProfileRoute
-  '/sitemap.xml': typeof SitemapDotxmlRoute
-  '/study-tools': typeof StudyToolsRoute
-  '/.mcp/list-tools': typeof Char91DotmcpChar93ListToolsRoute
-  '/.well-known/oauth-protected-resource': typeof Char91DotwellKnownChar93OauthProtectedResourceRoute
-  '/api/chat': typeof ApiChatRoute
-  '/api/parse-l5x': typeof ApiParseL5xRoute
-  '/course/$courseId': typeof CourseCourseIdRoute
-  '/courses/$trade': typeof CoursesTradeRoute
-  '/dev/motor-calcs': typeof DevMotorCalcsRoute
-  '/share/$token': typeof ShareTokenRoute
-  '/.lovable/oauth/consent': typeof DotlovableOauthConsentRoute
-  '/.mcp/invoke-tool/$tool': typeof Char91DotmcpChar93InvokeToolToolRoute
-  '/api/public/share/$token': typeof ApiPublicShareTokenRoute
+  __root__: typeof rootRouteImport;
+  "/": typeof IndexRoute;
+  "/auth": typeof AuthRoute;
+  "/data-center": typeof DataCenterRoute;
+  "/exam-prep": typeof ExamPrepRoute;
+  "/mcp": typeof McpRoute;
+  "/plc": typeof PlcRoute;
+  "/practice-test": typeof PracticeTestRoute;
+  "/profile": typeof ProfileRoute;
+  "/sitemap.xml": typeof SitemapDotxmlRoute;
+  "/study-tools": typeof StudyToolsRoute;
+  "/.mcp/list-tools": typeof Char91DotmcpChar93ListToolsRoute;
+  "/.well-known/oauth-protected-resource": typeof Char91DotwellKnownChar93OauthProtectedResourceRoute;
+  "/api/chat": typeof ApiChatRoute;
+  "/api/parse-l5x": typeof ApiParseL5xRoute;
+  "/course/$courseId": typeof CourseCourseIdRoute;
+  "/courses/$trade": typeof CoursesTradeRoute;
+  "/dev/motor-calcs": typeof DevMotorCalcsRoute;
+  "/share/$token": typeof ShareTokenRoute;
+  "/.lovable/oauth/consent": typeof DotlovableOauthConsentRoute;
+  "/.mcp/invoke-tool/$tool": typeof Char91DotmcpChar93InvokeToolToolRoute;
+  "/api/public/share/$token": typeof ApiPublicShareTokenRoute;
 }
 export interface FileRouteTypes {
-  fileRoutesByFullPath: FileRoutesByFullPath
+  fileRoutesByFullPath: FileRoutesByFullPath;
   fullPaths:
-    | '/'
-    | '/auth'
-    | '/data-center'
-    | '/exam-prep'
-    | '/mcp'
-    | '/plc'
-    | '/practice-test'
-    | '/profile'
-    | '/sitemap.xml'
-    | '/study-tools'
-    | '/.mcp/list-tools'
-    | '/.well-known/oauth-protected-resource'
-    | '/api/chat'
-    | '/api/parse-l5x'
-    | '/course/$courseId'
-    | '/courses/$trade'
-    | '/dev/motor-calcs'
-    | '/share/$token'
-    | '/.lovable/oauth/consent'
-    | '/.mcp/invoke-tool/$tool'
-    | '/api/public/share/$token'
-  fileRoutesByTo: FileRoutesByTo
+    | "/"
+    | "/auth"
+    | "/data-center"
+    | "/exam-prep"
+    | "/mcp"
+    | "/plc"
+    | "/practice-test"
+    | "/profile"
+    | "/sitemap.xml"
+    | "/study-tools"
+    | "/.mcp/list-tools"
+    | "/.well-known/oauth-protected-resource"
+    | "/api/chat"
+    | "/api/parse-l5x"
+    | "/course/$courseId"
+    | "/courses/$trade"
+    | "/dev/motor-calcs"
+    | "/share/$token"
+    | "/.lovable/oauth/consent"
+    | "/.mcp/invoke-tool/$tool"
+    | "/api/public/share/$token";
+  fileRoutesByTo: FileRoutesByTo;
   to:
-    | '/'
-    | '/auth'
-    | '/data-center'
-    | '/exam-prep'
-    | '/mcp'
-    | '/plc'
-    | '/practice-test'
-    | '/profile'
-    | '/sitemap.xml'
-    | '/study-tools'
-    | '/.mcp/list-tools'
-    | '/.well-known/oauth-protected-resource'
-    | '/api/chat'
-    | '/api/parse-l5x'
-    | '/course/$courseId'
-    | '/courses/$trade'
-    | '/dev/motor-calcs'
-    | '/share/$token'
-    | '/.lovable/oauth/consent'
-    | '/.mcp/invoke-tool/$tool'
-    | '/api/public/share/$token'
+    | "/"
+    | "/auth"
+    | "/data-center"
+    | "/exam-prep"
+    | "/mcp"
+    | "/plc"
+    | "/practice-test"
+    | "/profile"
+    | "/sitemap.xml"
+    | "/study-tools"
+    | "/.mcp/list-tools"
+    | "/.well-known/oauth-protected-resource"
+    | "/api/chat"
+    | "/api/parse-l5x"
+    | "/course/$courseId"
+    | "/courses/$trade"
+    | "/dev/motor-calcs"
+    | "/share/$token"
+    | "/.lovable/oauth/consent"
+    | "/.mcp/invoke-tool/$tool"
+    | "/api/public/share/$token";
   id:
-    | '__root__'
-    | '/'
-    | '/auth'
-    | '/data-center'
-    | '/exam-prep'
-    | '/mcp'
-    | '/plc'
-    | '/practice-test'
-    | '/profile'
-    | '/sitemap.xml'
-    | '/study-tools'
-    | '/.mcp/list-tools'
-    | '/.well-known/oauth-protected-resource'
-    | '/api/chat'
-    | '/api/parse-l5x'
-    | '/course/$courseId'
-    | '/courses/$trade'
-    | '/dev/motor-calcs'
-    | '/share/$token'
-    | '/.lovable/oauth/consent'
-    | '/.mcp/invoke-tool/$tool'
-    | '/api/public/share/$token'
-  fileRoutesById: FileRoutesById
+    | "__root__"
+    | "/"
+    | "/auth"
+    | "/data-center"
+    | "/exam-prep"
+    | "/mcp"
+    | "/plc"
+    | "/practice-test"
+    | "/profile"
+    | "/sitemap.xml"
+    | "/study-tools"
+    | "/.mcp/list-tools"
+    | "/.well-known/oauth-protected-resource"
+    | "/api/chat"
+    | "/api/parse-l5x"
+    | "/course/$courseId"
+    | "/courses/$trade"
+    | "/dev/motor-calcs"
+    | "/share/$token"
+    | "/.lovable/oauth/consent"
+    | "/.mcp/invoke-tool/$tool"
+    | "/api/public/share/$token";
+  fileRoutesById: FileRoutesById;
 }
 export interface RootRouteChildren {
-  IndexRoute: typeof IndexRoute
-  AuthRoute: typeof AuthRoute
-  DataCenterRoute: typeof DataCenterRoute
-  ExamPrepRoute: typeof ExamPrepRoute
-  McpRoute: typeof McpRoute
-  PlcRoute: typeof PlcRoute
-  PracticeTestRoute: typeof PracticeTestRoute
-  ProfileRoute: typeof ProfileRoute
-  SitemapDotxmlRoute: typeof SitemapDotxmlRoute
-  StudyToolsRoute: typeof StudyToolsRoute
-  Char91DotmcpChar93ListToolsRoute: typeof Char91DotmcpChar93ListToolsRoute
-  Char91DotwellKnownChar93OauthProtectedResourceRoute: typeof Char91DotwellKnownChar93OauthProtectedResourceRoute
-  ApiChatRoute: typeof ApiChatRoute
-  ApiParseL5xRoute: typeof ApiParseL5xRoute
-  CourseCourseIdRoute: typeof CourseCourseIdRoute
-  CoursesTradeRoute: typeof CoursesTradeRoute
-  DevMotorCalcsRoute: typeof DevMotorCalcsRoute
-  ShareTokenRoute: typeof ShareTokenRoute
-  DotlovableOauthConsentRoute: typeof DotlovableOauthConsentRoute
-  Char91DotmcpChar93InvokeToolToolRoute: typeof Char91DotmcpChar93InvokeToolToolRoute
-  ApiPublicShareTokenRoute: typeof ApiPublicShareTokenRoute
+  IndexRoute: typeof IndexRoute;
+  AuthRoute: typeof AuthRoute;
+  DataCenterRoute: typeof DataCenterRoute;
+  ExamPrepRoute: typeof ExamPrepRoute;
+  McpRoute: typeof McpRoute;
+  PlcRoute: typeof PlcRoute;
+  PracticeTestRoute: typeof PracticeTestRoute;
+  ProfileRoute: typeof ProfileRoute;
+  SitemapDotxmlRoute: typeof SitemapDotxmlRoute;
+  StudyToolsRoute: typeof StudyToolsRoute;
+  Char91DotmcpChar93ListToolsRoute: typeof Char91DotmcpChar93ListToolsRoute;
+  Char91DotwellKnownChar93OauthProtectedResourceRoute: typeof Char91DotwellKnownChar93OauthProtectedResourceRoute;
+  ApiChatRoute: typeof ApiChatRoute;
+  ApiParseL5xRoute: typeof ApiParseL5xRoute;
+  CourseCourseIdRoute: typeof CourseCourseIdRoute;
+  CoursesTradeRoute: typeof CoursesTradeRoute;
+  DevMotorCalcsRoute: typeof DevMotorCalcsRoute;
+  ShareTokenRoute: typeof ShareTokenRoute;
+  DotlovableOauthConsentRoute: typeof DotlovableOauthConsentRoute;
+  Char91DotmcpChar93InvokeToolToolRoute: typeof Char91DotmcpChar93InvokeToolToolRoute;
+  ApiPublicShareTokenRoute: typeof ApiPublicShareTokenRoute;
 }
 
-declare module '@tanstack/react-router' {
+declare module "@tanstack/react-router" {
   interface FileRoutesByPath {
-    '/study-tools': {
-      id: '/study-tools'
-      path: '/study-tools'
-      fullPath: '/study-tools'
-      preLoaderRoute: typeof StudyToolsRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/sitemap.xml': {
-      id: '/sitemap.xml'
-      path: '/sitemap.xml'
-      fullPath: '/sitemap.xml'
-      preLoaderRoute: typeof SitemapDotxmlRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/profile': {
-      id: '/profile'
-      path: '/profile'
-      fullPath: '/profile'
-      preLoaderRoute: typeof ProfileRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/practice-test': {
-      id: '/practice-test'
-      path: '/practice-test'
-      fullPath: '/practice-test'
-      preLoaderRoute: typeof PracticeTestRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/plc': {
-      id: '/plc'
-      path: '/plc'
-      fullPath: '/plc'
-      preLoaderRoute: typeof PlcRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/mcp': {
-      id: '/mcp'
-      path: '/mcp'
-      fullPath: '/mcp'
-      preLoaderRoute: typeof McpRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/exam-prep': {
-      id: '/exam-prep'
-      path: '/exam-prep'
-      fullPath: '/exam-prep'
-      preLoaderRoute: typeof ExamPrepRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/data-center': {
-      id: '/data-center'
-      path: '/data-center'
-      fullPath: '/data-center'
-      preLoaderRoute: typeof DataCenterRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/auth': {
-      id: '/auth'
-      path: '/auth'
-      fullPath: '/auth'
-      preLoaderRoute: typeof AuthRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/': {
-      id: '/'
-      path: '/'
-      fullPath: '/'
-      preLoaderRoute: typeof IndexRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/share/$token': {
-      id: '/share/$token'
-      path: '/share/$token'
-      fullPath: '/share/$token'
-      preLoaderRoute: typeof ShareTokenRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/dev/motor-calcs': {
-      id: '/dev/motor-calcs'
-      path: '/dev/motor-calcs'
-      fullPath: '/dev/motor-calcs'
-      preLoaderRoute: typeof DevMotorCalcsRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/courses/$trade': {
-      id: '/courses/$trade'
-      path: '/courses/$trade'
-      fullPath: '/courses/$trade'
-      preLoaderRoute: typeof CoursesTradeRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/course/$courseId': {
-      id: '/course/$courseId'
-      path: '/course/$courseId'
-      fullPath: '/course/$courseId'
-      preLoaderRoute: typeof CourseCourseIdRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/api/parse-l5x': {
-      id: '/api/parse-l5x'
-      path: '/api/parse-l5x'
-      fullPath: '/api/parse-l5x'
-      preLoaderRoute: typeof ApiParseL5xRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/api/chat': {
-      id: '/api/chat'
-      path: '/api/chat'
-      fullPath: '/api/chat'
-      preLoaderRoute: typeof ApiChatRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/.well-known/oauth-protected-resource': {
-      id: '/.well-known/oauth-protected-resource'
-      path: '/.well-known/oauth-protected-resource'
-      fullPath: '/.well-known/oauth-protected-resource'
-      preLoaderRoute: typeof Char91DotwellKnownChar93OauthProtectedResourceRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/.mcp/list-tools': {
-      id: '/.mcp/list-tools'
-      path: '/.mcp/list-tools'
-      fullPath: '/.mcp/list-tools'
-      preLoaderRoute: typeof Char91DotmcpChar93ListToolsRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/.mcp/invoke-tool/$tool': {
-      id: '/.mcp/invoke-tool/$tool'
-      path: '/.mcp/invoke-tool/$tool'
-      fullPath: '/.mcp/invoke-tool/$tool'
-      preLoaderRoute: typeof Char91DotmcpChar93InvokeToolToolRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/.lovable/oauth/consent': {
-      id: '/.lovable/oauth/consent'
-      path: '/.lovable/oauth/consent'
-      fullPath: '/.lovable/oauth/consent'
-      preLoaderRoute: typeof DotlovableOauthConsentRouteImport
-      parentRoute: typeof rootRouteImport
-    }
-    '/api/public/share/$token': {
-      id: '/api/public/share/$token'
-      path: '/api/public/share/$token'
-      fullPath: '/api/public/share/$token'
-      preLoaderRoute: typeof ApiPublicShareTokenRouteImport
-      parentRoute: typeof rootRouteImport
-    }
+    "/study-tools": {
+      id: "/study-tools";
+      path: "/study-tools";
+      fullPath: "/study-tools";
+      preLoaderRoute: typeof StudyToolsRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/sitemap.xml": {
+      id: "/sitemap.xml";
+      path: "/sitemap.xml";
+      fullPath: "/sitemap.xml";
+      preLoaderRoute: typeof SitemapDotxmlRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/profile": {
+      id: "/profile";
+      path: "/profile";
+      fullPath: "/profile";
+      preLoaderRoute: typeof ProfileRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/practice-test": {
+      id: "/practice-test";
+      path: "/practice-test";
+      fullPath: "/practice-test";
+      preLoaderRoute: typeof PracticeTestRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/plc": {
+      id: "/plc";
+      path: "/plc";
+      fullPath: "/plc";
+      preLoaderRoute: typeof PlcRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/mcp": {
+      id: "/mcp";
+      path: "/mcp";
+      fullPath: "/mcp";
+      preLoaderRoute: typeof McpRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/exam-prep": {
+      id: "/exam-prep";
+      path: "/exam-prep";
+      fullPath: "/exam-prep";
+      preLoaderRoute: typeof ExamPrepRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/data-center": {
+      id: "/data-center";
+      path: "/data-center";
+      fullPath: "/data-center";
+      preLoaderRoute: typeof DataCenterRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/auth": {
+      id: "/auth";
+      path: "/auth";
+      fullPath: "/auth";
+      preLoaderRoute: typeof AuthRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/": {
+      id: "/";
+      path: "/";
+      fullPath: "/";
+      preLoaderRoute: typeof IndexRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/share/$token": {
+      id: "/share/$token";
+      path: "/share/$token";
+      fullPath: "/share/$token";
+      preLoaderRoute: typeof ShareTokenRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/dev/motor-calcs": {
+      id: "/dev/motor-calcs";
+      path: "/dev/motor-calcs";
+      fullPath: "/dev/motor-calcs";
+      preLoaderRoute: typeof DevMotorCalcsRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/courses/$trade": {
+      id: "/courses/$trade";
+      path: "/courses/$trade";
+      fullPath: "/courses/$trade";
+      preLoaderRoute: typeof CoursesTradeRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/course/$courseId": {
+      id: "/course/$courseId";
+      path: "/course/$courseId";
+      fullPath: "/course/$courseId";
+      preLoaderRoute: typeof CourseCourseIdRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/api/parse-l5x": {
+      id: "/api/parse-l5x";
+      path: "/api/parse-l5x";
+      fullPath: "/api/parse-l5x";
+      preLoaderRoute: typeof ApiParseL5xRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/api/chat": {
+      id: "/api/chat";
+      path: "/api/chat";
+      fullPath: "/api/chat";
+      preLoaderRoute: typeof ApiChatRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/.well-known/oauth-protected-resource": {
+      id: "/.well-known/oauth-protected-resource";
+      path: "/.well-known/oauth-protected-resource";
+      fullPath: "/.well-known/oauth-protected-resource";
+      preLoaderRoute: typeof Char91DotwellKnownChar93OauthProtectedResourceRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/.mcp/list-tools": {
+      id: "/.mcp/list-tools";
+      path: "/.mcp/list-tools";
+      fullPath: "/.mcp/list-tools";
+      preLoaderRoute: typeof Char91DotmcpChar93ListToolsRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/.mcp/invoke-tool/$tool": {
+      id: "/.mcp/invoke-tool/$tool";
+      path: "/.mcp/invoke-tool/$tool";
+      fullPath: "/.mcp/invoke-tool/$tool";
+      preLoaderRoute: typeof Char91DotmcpChar93InvokeToolToolRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/.lovable/oauth/consent": {
+      id: "/.lovable/oauth/consent";
+      path: "/.lovable/oauth/consent";
+      fullPath: "/.lovable/oauth/consent";
+      preLoaderRoute: typeof DotlovableOauthConsentRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
+    "/api/public/share/$token": {
+      id: "/api/public/share/$token";
+      path: "/api/public/share/$token";
+      fullPath: "/api/public/share/$token";
+      preLoaderRoute: typeof ApiPublicShareTokenRouteImport;
+      parentRoute: typeof rootRouteImport;
+    };
   }
 }
 
@@ -481,17 +479,17 @@ const rootRouteChildren: RootRouteChildren = {
   DotlovableOauthConsentRoute: DotlovableOauthConsentRoute,
   Char91DotmcpChar93InvokeToolToolRoute: Char91DotmcpChar93InvokeToolToolRoute,
   ApiPublicShareTokenRoute: ApiPublicShareTokenRoute,
-}
+};
 export const routeTree = rootRouteImport
   ._addFileChildren(rootRouteChildren)
-  ._addFileTypes<FileRouteTypes>()
+  ._addFileTypes<FileRouteTypes>();
 
-import type { getRouter } from './router.tsx'
-import type { startInstance } from './start.ts'
-declare module '@tanstack/react-start' {
+import type { getRouter } from "./router.tsx";
+import type { startInstance } from "./start.ts";
+declare module "@tanstack/react-start" {
   interface Register {
-    ssr: true
-    router: Awaited<ReturnType<typeof getRouter>>
-    config: Awaited<ReturnType<typeof startInstance.getOptions>>
+    ssr: true;
+    router: Awaited<ReturnType<typeof getRouter>>;
+    config: Awaited<ReturnType<typeof startInstance.getOptions>>;
   }
 }
diff --git a/codecompass-beta/src/routes/[.mcp]/invoke-tool/$tool.ts b/codecompass-beta/src/routes/[.mcp]/invoke-tool/$tool.ts
index 4f9c6a0..e631701 100644
--- a/codecompass-beta/src/routes/[.mcp]/invoke-tool/$tool.ts
+++ b/codecompass-beta/src/routes/[.mcp]/invoke-tool/$tool.ts
@@ -13,7 +13,11 @@ export const Route = createFileRoute("/.mcp/invoke-tool/$tool")({
   server: {
     handlers: {
       // ANY: TanStack returns SPA HTML for methods not in `handlers`; the SDK 405s instead.
-      ANY: createTanStackInvokeToolHandler(mcp, { resourcePath: "/mcp", metadataPath: "/.well-known/oauth-protected-resource", trustForwardedHost: true }),
+      ANY: createTanStackInvokeToolHandler(mcp, {
+        resourcePath: "/mcp",
+        metadataPath: "/.well-known/oauth-protected-resource",
+        trustForwardedHost: true,
+      }),
     },
   },
 });
diff --git a/codecompass-beta/src/routes/[.mcp]/list-tools.ts b/codecompass-beta/src/routes/[.mcp]/list-tools.ts
index ce5de60..5104f6e 100644
--- a/codecompass-beta/src/routes/[.mcp]/list-tools.ts
+++ b/codecompass-beta/src/routes/[.mcp]/list-tools.ts
@@ -13,7 +13,11 @@ export const Route = createFileRoute("/.mcp/list-tools")({
   server: {
     handlers: {
       // ANY: TanStack returns SPA HTML for methods not in `handlers`; the SDK 405s instead.
-      ANY: createTanStackListToolsHandler(mcp, { resourcePath: "/mcp", metadataPath: "/.well-known/oauth-protected-resource", trustForwardedHost: true }),
+      ANY: createTanStackListToolsHandler(mcp, {
+        resourcePath: "/mcp",
+        metadataPath: "/.well-known/oauth-protected-resource",
+        trustForwardedHost: true,
+      }),
     },
   },
 });
diff --git a/codecompass-beta/src/routes/[.well-known]/oauth-protected-resource.ts b/codecompass-beta/src/routes/[.well-known]/oauth-protected-resource.ts
index 87fe0ac..ac78a6d 100644
--- a/codecompass-beta/src/routes/[.well-known]/oauth-protected-resource.ts
+++ b/codecompass-beta/src/routes/[.well-known]/oauth-protected-resource.ts
@@ -12,7 +12,11 @@ import mcp from "../../lib/mcp/index";
 export const Route = createFileRoute("/.well-known/oauth-protected-resource")({
   server: {
     handlers: {
-      ANY: createTanStackOAuthProtectedResourceMetadataHandler(mcp, { resourcePath: "/mcp", metadataPath: "/.well-known/oauth-protected-resource", trustForwardedHost: true }),
+      ANY: createTanStackOAuthProtectedResourceMetadataHandler(mcp, {
+        resourcePath: "/mcp",
+        metadataPath: "/.well-known/oauth-protected-resource",
+        trustForwardedHost: true,
+      }),
     },
   },
 });
diff --git a/codecompass-beta/src/routes/api/parse-l5x.ts b/codecompass-beta/src/routes/api/parse-l5x.ts
index c008fa2..2d1ed9d 100644
--- a/codecompass-beta/src/routes/api/parse-l5x.ts
+++ b/codecompass-beta/src/routes/api/parse-l5x.ts
@@ -62,7 +62,7 @@ export const Route = createFileRoute("/api/parse-l5x")({
           const stack = error instanceof Error ? error.stack : undefined;
           console.error("L5X parse error:", { message: errMsg, stack });
           return new Response(
-            JSON.stringify({ 
+            JSON.stringify({
               error: "Failed to parse L5X file. Invalid format or unsupported schema.",
               details: process.env.NODE_ENV === "development" ? errMsg : undefined,
             }),
diff --git a/codecompass-beta/src/routes/api/stripe-checkout.ts b/codecompass-beta/src/routes/api/stripe-checkout.ts
index 9f9a753..7df09e1 100644
--- a/codecompass-beta/src/routes/api/stripe-checkout.ts
+++ b/codecompass-beta/src/routes/api/stripe-checkout.ts
@@ -7,8 +7,7 @@ import { createFileRoute } from "@tanstack/react-router";
  * Env: STRIPE_SECRET_KEY, STRIPE_LIFETIME_PRICE_ID (optional, defaults to test price)
  */
 
-const LIFETIME_PRICE_ID =
-  process.env.STRIPE_LIFETIME_PRICE_ID ?? "price_1Ten4FRjzbxMHVlJikIz0EJR";
+const LIFETIME_PRICE_ID = process.env.STRIPE_LIFETIME_PRICE_ID ?? "price_1Ten4FRjzbxMHVlJikIz0EJR";
 
 export const Route = createFileRoute("/api/stripe-checkout")({
   server: {
@@ -17,10 +16,10 @@ export const Route = createFileRoute("/api/stripe-checkout")({
         try {
           const stripeKey = process.env.STRIPE_SECRET_KEY;
           if (!stripeKey) {
-            return new Response(
-              JSON.stringify({ error: "Stripe not configured" }),
-              { status: 500, headers: { "content-type": "application/json" } },
-            );
+            return new Response(JSON.stringify({ error: "Stripe not configured" }), {
+              status: 500,
+              headers: { "content-type": "application/json" },
+            });
           }
 
           const body = await request.json().catch(() => ({}));
@@ -28,42 +27,39 @@ export const Route = createFileRoute("/api/stripe-checkout")({
           const customerEmail = body.customerEmail || undefined;
 
           // Use Stripe REST directly — no SDK dependency needed for checkout
-          const sessionRes = await fetch(
-            "https://api.stripe.com/v1/checkout/sessions",
-            {
-              method: "POST",
-              headers: {
-                Authorization: `Bearer ${stripeKey}`,
-                "Content-Type": "application/x-www-form-urlencoded",
-              },
-              body: new URLSearchParams({
-                mode: "payment",
-                "payment_method_types[]": "card",
-                "line_items[0][price]": LIFETIME_PRICE_ID,
-                "line_items[0][quantity]": "1",
-                allow_promotion_codes: "true",
-                success_url: `${origin}/payment-success?session_id={CHECKOUT_SESSION_ID}`,
-                cancel_url: `${origin}/payment-cancel`,
-                ...(customerEmail ? { customer_email: customerEmail } : {}),
-                "metadata[plan_id]": "lifetime",
-              }),
+          const sessionRes = await fetch("https://api.stripe.com/v1/checkout/sessions", {
+            method: "POST",
+            headers: {
+              Authorization: `Bearer ${stripeKey}`,
+              "Content-Type": "application/x-www-form-urlencoded",
             },
-          );
+            body: new URLSearchParams({
+              mode: "payment",
+              "payment_method_types[]": "card",
+              "line_items[0][price]": LIFETIME_PRICE_ID,
+              "line_items[0][quantity]": "1",
+              allow_promotion_codes: "true",
+              success_url: `${origin}/payment-success?session_id={CHECKOUT_SESSION_ID}`,
+              cancel_url: `${origin}/payment-cancel`,
+              ...(customerEmail ? { customer_email: customerEmail } : {}),
+              "metadata[plan_id]": "lifetime",
+            }),
+          });
 
           if (!sessionRes.ok) {
             const err = await sessionRes.text();
             console.error("[Stripe Checkout] API error:", err);
-            return new Response(
-              JSON.stringify({ error: "Stripe API error", detail: err }),
-              { status: 502, headers: { "content-type": "application/json" } },
-            );
+            return new Response(JSON.stringify({ error: "Stripe API error", detail: err }), {
+              status: 502,
+              headers: { "content-type": "application/json" },
+            });
           }
 
           const session = await sessionRes.json();
-          return new Response(
-            JSON.stringify({ url: session.url, id: session.id }),
-            { status: 200, headers: { "content-type": "application/json" } },
-          );
+          return new Response(JSON.stringify({ url: session.url, id: session.id }), {
+            status: 200,
+            headers: { "content-type": "application/json" },
+          });
         } catch (error) {
           const errMsg = error instanceof Error ? error.message : "Unknown error";
           console.error("[Stripe Checkout] Error:", errMsg);
diff --git a/codecompass-beta/src/routes/api/stripe-webhook.ts b/codecompass-beta/src/routes/api/stripe-webhook.ts
index a9ebf00..783d859 100644
--- a/codecompass-beta/src/routes/api/stripe-webhook.ts
+++ b/codecompass-beta/src/routes/api/stripe-webhook.ts
@@ -43,13 +43,10 @@ export const Route = createFileRoute("/api/stripe-webhook")({
             .map((s) => s.replace("v1=", ""));
 
           const payload = `${timestamp}.${rawBody}`;
-          const computed = crypto
-            .createHmac("sha256", webhookSecret)
-            .update(payload)
-            .digest("hex");
+          const computed = crypto.createHmac("sha256", webhookSecret).update(payload).digest("hex");
 
-          const isValid = sigValues.some(
-            (v) => crypto.timingSafeEqual(Buffer.from(v), Buffer.from(computed)),
+          const isValid = sigValues.some((v) =>
+            crypto.timingSafeEqual(Buffer.from(v), Buffer.from(computed)),
           );
 
           if (!isValid) {
@@ -81,23 +78,20 @@ export const Route = createFileRoute("/api/stripe-webhook")({
               const serviceKey = process.env.SUPABASE_SERVICE_ROLE_KEY;
 
               if (supabaseUrl && serviceKey) {
-                await fetch(
-                  `${supabaseUrl}/rest/v1/users?id=eq.${userId}`,
-                  {
-                    method: "PATCH",
-                    headers: {
-                      apikey: serviceKey,
-                      Authorization: `Bearer ${serviceKey}`,
-                      "Content-Type": "application/json",
-                      Prefer: "return=minimal",
-                    },
-                    body: JSON.stringify({
-                      subscription_status: "active",
-                      subscription_plan: "lifetime",
-                      stripe_customer_id: session.customer,
-                    }),
+                await fetch(`${supabaseUrl}/rest/v1/users?id=eq.${userId}`, {
+                  method: "PATCH",
+                  headers: {
+                    apikey: serviceKey,
+                    Authorization: `Bearer ${serviceKey}`,
+                    "Content-Type": "application/json",
+                    Prefer: "return=minimal",
                   },
-                );
+                  body: JSON.stringify({
+                    subscription_status: "active",
+                    subscription_plan: "lifetime",
+                    stripe_customer_id: session.customer,
+                  }),
+                });
                 console.log(`[Webhook] Granted lifetime access to user ${userId}`);
               }
             }
@@ -109,10 +103,10 @@ export const Route = createFileRoute("/api/stripe-webhook")({
         } catch (error) {
           const errMsg = error instanceof Error ? error.message : "Unknown error";
           console.error("[Webhook] Processing error:", errMsg);
-          return new Response(
-            JSON.stringify({ error: "Webhook processing error" }),
-            { status: 500, headers: { "content-type": "application/json" } },
-          );
+          return new Response(JSON.stringify({ error: "Webhook processing error" }), {
+            status: 500,
+            headers: { "content-type": "application/json" },
+          });
         }
       },
     },
diff --git a/codecompass-beta/src/routes/mcp.ts b/codecompass-beta/src/routes/mcp.ts
index a13662d..0436bb4 100644
--- a/codecompass-beta/src/routes/mcp.ts
+++ b/codecompass-beta/src/routes/mcp.ts
@@ -12,7 +12,11 @@ import mcp from "../lib/mcp/index";
 export const Route = createFileRoute("/mcp")({
   server: {
     handlers: {
-      ANY: createTanStackMcpHandler(mcp, { resourcePath: "/mcp", metadataPath: "/.well-known/oauth-protected-resource", trustForwardedHost: true }),
+      ANY: createTanStackMcpHandler(mcp, {
+        resourcePath: "/mcp",
+        metadataPath: "/.well-known/oauth-protected-resource",
+        trustForwardedHost: true,
+      }),
     },
   },
 });
diff --git a/drizzle/meta/0000_snapshot.json b/drizzle/meta/0000_snapshot.json
index cc6efb8..df6c8bb 100644
--- a/drizzle/meta/0000_snapshot.json
+++ b/drizzle/meta/0000_snapshot.json
@@ -81,17 +81,13 @@
       "compositePrimaryKeys": {
         "users_id": {
           "name": "users_id",
-          "columns": [
-            "id"
-          ]
+          "columns": ["id"]
         }
       },
       "uniqueConstraints": {
         "users_openId_unique": {
           "name": "users_openId_unique",
-          "columns": [
-            "openId"
-          ]
+          "columns": ["openId"]
         }
       },
       "checkConstraint": {}
@@ -107,4 +103,4 @@
     "tables": {},
     "indexes": {}
   }
-}
\ No newline at end of file
+}
diff --git a/drizzle/meta/0001_snapshot.json b/drizzle/meta/0001_snapshot.json
index 71d8d90..ca5e2da 100644
--- a/drizzle/meta/0001_snapshot.json
+++ b/drizzle/meta/0001_snapshot.json
@@ -117,17 +117,13 @@
       "compositePrimaryKeys": {
         "users_id": {
           "name": "users_id",
-          "columns": [
-            "id"
-          ]
+          "columns": ["id"]
         }
       },
       "uniqueConstraints": {
         "users_openId_unique": {
           "name": "users_openId_unique",
-          "columns": [
-            "openId"
-          ]
+          "columns": ["openId"]
         }
       },
       "checkConstraint": {}
@@ -143,4 +139,4 @@
     "tables": {},
     "indexes": {}
   }
-}
\ No newline at end of file
+}
diff --git a/drizzle/meta/0002_snapshot.json b/drizzle/meta/0002_snapshot.json
index ea41ffc..1fcdd31 100644
--- a/drizzle/meta/0002_snapshot.json
+++ b/drizzle/meta/0002_snapshot.json
@@ -59,9 +59,7 @@
       "compositePrimaryKeys": {
         "copilot_usage_id": {
           "name": "copilot_usage_id",
-          "columns": [
-            "id"
-          ]
+          "columns": ["id"]
         }
       },
       "uniqueConstraints": {},
@@ -180,17 +178,13 @@
       "compositePrimaryKeys": {
         "users_id": {
           "name": "users_id",
-          "columns": [
-            "id"
-          ]
+          "columns": ["id"]
         }
       },
       "uniqueConstraints": {
         "users_openId_unique": {
           "name": "users_openId_unique",
-          "columns": [
-            "openId"
-          ]
+          "columns": ["openId"]
         }
       },
       "checkConstraint": {}
@@ -206,4 +200,4 @@
     "tables": {},
     "indexes": {}
   }
-}
\ No newline at end of file
+}
diff --git a/drizzle/meta/_journal.json b/drizzle/meta/_journal.json
index 82f2345..87ded69 100644
--- a/drizzle/meta/_journal.json
+++ b/drizzle/meta/_journal.json
@@ -24,4 +24,4 @@
       "breakpoints": true
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/drizzle/schema.ts b/drizzle/schema.ts
index 951bfb5..ca24bca 100644
--- a/drizzle/schema.ts
+++ b/drizzle/schema.ts
@@ -1,4 +1,11 @@
-import { int, mysqlEnum, mysqlTable, text, timestamp, varchar } from "drizzle-orm/mysql-core";
+import {
+  int,
+  mysqlEnum,
+  mysqlTable,
+  text,
+  timestamp,
+  varchar,
+} from "drizzle-orm/mysql-core";
 
 /**
  * Core user table backing auth flow.
@@ -24,7 +31,15 @@ export const users = mysqlTable("users", {
   stripeCustomerId: varchar("stripeCustomerId", { length: 128 }),
   stripeSubscriptionId: varchar("stripeSubscriptionId", { length: 128 }),
   // Cached subscription status for fast access — kept in sync via webhooks
-  subscriptionStatus: mysqlEnum("subscriptionStatus", ["active", "trialing", "past_due", "canceled", "none"]).default("none").notNull(),
+  subscriptionStatus: mysqlEnum("subscriptionStatus", [
+    "active",
+    "trialing",
+    "past_due",
+    "canceled",
+    "none",
+  ])
+    .default("none")
+    .notNull(),
   subscriptionPlan: varchar("subscriptionPlan", { length: 64 }), // e.g. "pro_monthly" | "pro_annual" | "lifetime"
   subscriptionCurrentPeriodEnd: timestamp("subscriptionCurrentPeriodEnd"),
 });
diff --git a/ideas.md b/ideas.md
index aa9fdb2..31d30b0 100644
--- a/ideas.md
+++ b/ideas.md
@@ -7,6 +7,7 @@
 **Design Movement:** Industrial Brutalism meets Control Room UI — inspired by SCADA interfaces, electrical panel labeling, and the tactile feel of breaker boxes.
 
 **Core Principles:**
+
 1. Information density over decoration — every pixel earns its place
 2. Monospaced precision — data feels engineered, not designed
 3. Status-indicator color language — amber = active, green = correct, red = fault
@@ -17,6 +18,7 @@
 **Layout Paradigm:** Fixed left sidebar (navigation as "breaker panel"), main content area as a "work surface" with card-based modules that snap into a grid like DIN-rail components. No scrolling hero sections — immediate utility.
 
 **Signature Elements:**
+
 1. Pulsing amber dot indicators on active modes (like a live panel)
 2. "Wire" connector lines between related UI elements using SVG paths
 3. Stencil-style uppercase labels reminiscent of panel schedules
@@ -37,6 +39,7 @@
 **Design Movement:** Technical Blueprint Aesthetic — inspired by architectural drawings, engineering schematics, and the blue-white contrast of cyanotype prints, modernized with a dark-mode twist.
 
 **Core Principles:**
+
 1. Grid-ruled precision — faint grid lines visible in backgrounds like graph paper
 2. Annotation-style UI — labels feel hand-written on a technical drawing
 3. Layered depth — content sits on "sheets" that cast subtle shadows
@@ -47,6 +50,7 @@
 **Layout Paradigm:** Full-width top navigation bar (like a toolbar), content organized in "blueprint sheets" — large cards with subtle dashed borders. Quiz/Exam modes use a split layout: question on left, answer workspace on right. No wasted vertical space.
 
 **Signature Elements:**
+
 1. Faint crosshatch grid pattern in section backgrounds
 2. "Dimension line" dividers between sections (like architectural measurements)
 3. Circular badge indicators with article numbers (like callout bubbles on a blueprint)
@@ -67,6 +71,7 @@
 **Design Movement:** Cyberpunk HUD (Heads-Up Display) — inspired by video game interfaces, night-shift jobsite lighting, and the glow of multimeter screens in dark spaces.
 
 **Core Principles:**
+
 1. Glowing focal points — key data radiates light against darkness
 2. Scanline texture — subtle horizontal lines create screen depth
 3. Segmented displays — numbers and stats shown in LED-style readouts
@@ -77,6 +82,7 @@
 **Layout Paradigm:** Centered single-column for mobile-first (tradesmen on phones at jobsites). Desktop expands to a cockpit layout — stats in corners, main content centered, persistent bottom toolbar for mode switching. No sidebar — everything accessible within thumb reach.
 
 **Signature Elements:**
+
 1. Glowing border effect on active cards (box-shadow with amber)
 2. Seven-segment LED-style number displays for scores and timers
 3. "Signal strength" bars for difficulty indicators
diff --git a/package.json b/package.json
index 4becc7c..3ab0b0a 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
     "@aws-sdk/client-s3": "^3.693.0",
     "@aws-sdk/s3-request-presigner": "^3.693.0",
     "@google/generative-ai": "^0.24.1",
+    "@vercel/analytics": "^2.0.1",
     "@hookform/resolvers": "^5.2.2",
     "@radix-ui/react-accordion": "^1.2.12",
     "@radix-ui/react-alert-dialog": "^1.1.15",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e600460..9bf32a5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -121,6 +121,9 @@ importers:
       '@trpc/server':
         specifier: ^11.6.0
         version: 11.17.0(typescript@5.9.3)
+      '@vercel/analytics':
+        specifier: ^2.0.1
+        version: 2.0.1(react@19.2.1)
       axios:
         specifier: ^1.12.0
         version: 1.12.2
@@ -2522,6 +2525,35 @@ packages:
   '@ungap/structured-clone@1.3.0':
     resolution: {integrity: sha512-WmoN8qaIAo7WTYWbAZuG8PYEhn5fkz7dZrqTBZ7dtt//lL2Gwms1IcnQ5yHqjDfX8Ft5j4YzDM23f87zBfDe9g==}
 
+  '@vercel/analytics@2.0.1':
+    resolution: {integrity: sha512-MTQG6V9qQrt1tsDeF+2Uoo5aPjqbVPys1xvnIftXSJYG2SrwXRHnqEvVoYID7BTruDz4lCd2Z7rM1BdkUehk2g==}
+    peerDependencies:
+      '@remix-run/react': ^2
+      '@sveltejs/kit': ^1 || ^2
+      next: '>= 13'
+      nuxt: '>= 3'
+      react: ^18 || ^19 || ^19.0.0-rc
+      svelte: '>= 4'
+      vue: ^3
+      vue-router: ^4
+    peerDependenciesMeta:
+      '@remix-run/react':
+        optional: true
+      '@sveltejs/kit':
+        optional: true
+      next:
+        optional: true
+      nuxt:
+        optional: true
+      react:
+        optional: true
+      svelte:
+        optional: true
+      vue:
+        optional: true
+      vue-router:
+        optional: true
+
   '@vercel/build-utils@13.34.0':
     resolution: {integrity: sha512-DhbYXymwjO6N3prqBf7UzQFNpQIcHabe1qbiXxqqfjDJ5Tca9+MMYnU/+uObHrPBfR9FAXMxAwmkIUw59zJ7cw==}
 
@@ -6939,6 +6971,10 @@ snapshots:
 
   '@ungap/structured-clone@1.3.0': {}
 
+  '@vercel/analytics@2.0.1(react@19.2.1)':
+    optionalDependencies:
+      react: 19.2.1
+
   '@vercel/build-utils@13.34.0':
     dependencies:
       '@vercel/python-analysis': 0.11.1
diff --git a/server/_core/dataApi.ts b/server/_core/dataApi.ts
index 7ef81b5..a5d6343 100644
--- a/server/_core/dataApi.ts
+++ b/server/_core/dataApi.ts
@@ -25,8 +25,13 @@ export async function callDataApi(
   }
 
   // Build the full URL by appending the service path to the base URL
-  const baseUrl = ENV.forgeApiUrl.endsWith("/") ? ENV.forgeApiUrl : `${ENV.forgeApiUrl}/`;
-  const fullUrl = new URL("webdevtoken.v1.WebDevService/CallApi", baseUrl).toString();
+  const baseUrl = ENV.forgeApiUrl.endsWith("/")
+    ? ENV.forgeApiUrl
+    : `${ENV.forgeApiUrl}/`;
+  const fullUrl = new URL(
+    "webdevtoken.v1.WebDevService/CallApi",
+    baseUrl
+  ).toString();
 
   const response = await fetch(fullUrl, {
     method: "POST",
diff --git a/server/_core/llm.ts b/server/_core/llm.ts
index 8ea4c4a..b64b9da 100644
--- a/server/_core/llm.ts
+++ b/server/_core/llm.ts
@@ -19,7 +19,12 @@ export type FileContent = {
   type: "file_url";
   file_url: {
     url: string;
-    mime_type?: "audio/mpeg" | "audio/wav" | "application/pdf" | "audio/mp4" | "video/mp4" ;
+    mime_type?:
+      | "audio/mpeg"
+      | "audio/wav"
+      | "application/pdf"
+      | "audio/mp4"
+      | "video/mp4";
   };
 };
 
@@ -296,10 +301,10 @@ export async function invokeLLM(params: InvokeParams): Promise<InvokeResult> {
     payload.tool_choice = normalizedToolChoice;
   }
 
-  payload.max_tokens = 32768
+  payload.max_tokens = 32768;
   payload.thinking = {
-    "budget_tokens": 128
-  }
+    budget_tokens: 128,
+  };
 
   const normalizedResponseFormat = normalizeResponseFormat({
     responseFormat,
diff --git a/server/_core/map.ts b/server/_core/map.ts
index ac2c28c..b571665 100644
--- a/server/_core/map.ts
+++ b/server/_core/map.ts
@@ -1,9 +1,9 @@
 /**
  * Google Maps API Integration for Manus WebDev Templates
- * 
+ *
  * Main function: makeRequest<T>(endpoint, params) - Makes authenticated requests to Google Maps APIs
  * All credentials are automatically injected. Array parameters use | as separator.
- * 
+ *
  * See API examples below the type definitions for usage patterns.
  */
 
@@ -45,7 +45,7 @@ interface RequestOptions {
 
 /**
  * Make authenticated requests to Google Maps APIs
- * 
+ *
  * @param endpoint - The API endpoint (e.g., "/maps/api/geocode/json")
  * @param params - Query parameters for the request
  * @param options - Additional request options
@@ -313,7 +313,3 @@ export type RoadsResult = {
  * Output: Image URL (not JSON) - use directly in <img src={url} />
  * Note: Construct URL manually with getMapsConfig() for auth
  */
-
-
-
-
diff --git a/server/_core/notification.ts b/server/_core/notification.ts
index 889a573..61147ad 100644
--- a/server/_core/notification.ts
+++ b/server/_core/notification.ts
@@ -14,9 +14,7 @@ const isNonEmptyString = (value: unknown): value is string =>
   typeof value === "string" && value.trim().length > 0;
 
 const buildEndpointUrl = (baseUrl: string): string => {
-  const normalizedBase = baseUrl.endsWith("/")
-    ? baseUrl
-    : `${baseUrl}/`;
+  const normalizedBase = baseUrl.endsWith("/") ? baseUrl : `${baseUrl}/`;
   return new URL(
     "webdevtoken.v1.WebDevService/SendNotification",
     normalizedBase
diff --git a/server/_core/oauth.ts b/server/_core/oauth.ts
index fd45373..f216748 100644
--- a/server/_core/oauth.ts
+++ b/server/_core/oauth.ts
@@ -42,7 +42,10 @@ export function registerOAuthRoutes(app: Express) {
       });
 
       const cookieOptions = getSessionCookieOptions(req);
-      res.cookie(COOKIE_NAME, sessionToken, { ...cookieOptions, maxAge: ONE_YEAR_MS });
+      res.cookie(COOKIE_NAME, sessionToken, {
+        ...cookieOptions,
+        maxAge: ONE_YEAR_MS,
+      });
 
       res.redirect(302, "/");
     } catch (error) {
diff --git a/server/_core/storageProxy.ts b/server/_core/storageProxy.ts
index d2e8978..c6ccb24 100644
--- a/server/_core/storageProxy.ts
+++ b/server/_core/storageProxy.ts
@@ -17,7 +17,7 @@ export function registerStorageProxy(app: Express) {
     try {
       const forgeUrl = new URL(
         "v1/storage/presign/get",
-        ENV.forgeApiUrl.replace(/\/+$/, "") + "/",
+        ENV.forgeApiUrl.replace(/\/+$/, "") + "/"
       );
       forgeUrl.searchParams.set("path", key);
 
@@ -27,7 +27,9 @@ export function registerStorageProxy(app: Express) {
 
       if (!forgeResp.ok) {
         const body = await forgeResp.text().catch(() => "");
-        console.error(`[StorageProxy] forge error: ${forgeResp.status} ${body}`);
+        console.error(
+          `[StorageProxy] forge error: ${forgeResp.status} ${body}`
+        );
         res.status(502).send("Storage backend error");
         return;
       }
diff --git a/server/_core/trpc.ts b/server/_core/trpc.ts
index a0bcc05..e3d5bdf 100644
--- a/server/_core/trpc.ts
+++ b/server/_core/trpc.ts
@@ -1,4 +1,4 @@
-import { NOT_ADMIN_ERR_MSG, UNAUTHED_ERR_MSG } from '@shared/const';
+import { NOT_ADMIN_ERR_MSG, UNAUTHED_ERR_MSG } from "@shared/const";
 import { initTRPC, TRPCError } from "@trpc/server";
 import superjson from "superjson";
 import type { TrpcContext } from "./context";
@@ -31,7 +31,7 @@ export const adminProcedure = t.procedure.use(
   t.middleware(async opts => {
     const { ctx, next } = opts;
 
-    if (!ctx.user || ctx.user.role !== 'admin') {
+    if (!ctx.user || ctx.user.role !== "admin") {
       throw new TRPCError({ code: "FORBIDDEN", message: NOT_ADMIN_ERR_MSG });
     }
 
@@ -41,5 +41,5 @@ export const adminProcedure = t.procedure.use(
         user: ctx.user,
       },
     });
-  }),
+  })
 );
diff --git a/server/_core/voiceTranscription.ts b/server/_core/voiceTranscription.ts
index ed511f6..65ca75e 100644
--- a/server/_core/voiceTranscription.ts
+++ b/server/_core/voiceTranscription.ts
@@ -5,7 +5,7 @@
  * 1. Capture audio using MediaRecorder API
  * 2. Upload audio to storage (e.g., S3) to get URL
  * 3. Call transcription with the URL
- * 
+ *
  * Example usage:
  * ```tsx
  * // Frontend component
@@ -16,7 +16,7 @@
  *     console.log(data.segments); // Timestamped segments
  *   }
  * });
- * 
+ *
  * // After uploading audio to storage
  * transcribeMutation.mutate({
  *   audioUrl: uploadedAudioUrl,
@@ -60,13 +60,18 @@ export type TranscriptionResponse = WhisperResponse; // Return native Whisper AP
 
 export type TranscriptionError = {
   error: string;
-  code: "FILE_TOO_LARGE" | "INVALID_FORMAT" | "TRANSCRIPTION_FAILED" | "UPLOAD_FAILED" | "SERVICE_ERROR";
+  code:
+    | "FILE_TOO_LARGE"
+    | "INVALID_FORMAT"
+    | "TRANSCRIPTION_FAILED"
+    | "UPLOAD_FAILED"
+    | "SERVICE_ERROR";
   details?: string;
 };
 
 /**
  * Transcribe audio to text using the internal Speech-to-Text service
- * 
+ *
  * @param options - Audio data and metadata
  * @returns Transcription result or error
  */
@@ -79,14 +84,14 @@ export async function transcribeAudio(
       return {
         error: "Voice transcription service is not configured",
         code: "SERVICE_ERROR",
-        details: "BUILT_IN_FORGE_API_URL is not set"
+        details: "BUILT_IN_FORGE_API_URL is not set",
       };
     }
     if (!ENV.forgeApiKey) {
       return {
         error: "Voice transcription service authentication is missing",
         code: "SERVICE_ERROR",
-        details: "BUILT_IN_FORGE_API_KEY is not set"
+        details: "BUILT_IN_FORGE_API_KEY is not set",
       };
     }
 
@@ -99,58 +104,57 @@ export async function transcribeAudio(
         return {
           error: "Failed to download audio file",
           code: "INVALID_FORMAT",
-          details: `HTTP ${response.status}: ${response.statusText}`
+          details: `HTTP ${response.status}: ${response.statusText}`,
         };
       }
-      
+
       audioBuffer = Buffer.from(await response.arrayBuffer());
-      mimeType = response.headers.get('content-type') || 'audio/mpeg';
-      
+      mimeType = response.headers.get("content-type") || "audio/mpeg";
+
       // Check file size (16MB limit)
       const sizeMB = audioBuffer.length / (1024 * 1024);
       if (sizeMB > 16) {
         return {
           error: "Audio file exceeds maximum size limit",
           code: "FILE_TOO_LARGE",
-          details: `File size is ${sizeMB.toFixed(2)}MB, maximum allowed is 16MB`
+          details: `File size is ${sizeMB.toFixed(2)}MB, maximum allowed is 16MB`,
         };
       }
     } catch (error) {
       return {
         error: "Failed to fetch audio file",
         code: "SERVICE_ERROR",
-        details: error instanceof Error ? error.message : "Unknown error"
+        details: error instanceof Error ? error.message : "Unknown error",
       };
     }
 
     // Step 3: Create FormData for multipart upload to Whisper API
     const formData = new FormData();
-    
+
     // Create a Blob from the buffer and append to form
     const filename = `audio.${getFileExtension(mimeType)}`;
-    const audioBlob = new Blob([new Uint8Array(audioBuffer)], { type: mimeType });
+    const audioBlob = new Blob([new Uint8Array(audioBuffer)], {
+      type: mimeType,
+    });
     formData.append("file", audioBlob, filename);
-    
+
     formData.append("model", "whisper-1");
     formData.append("response_format", "verbose_json");
-    
+
     // Add prompt - use custom prompt if provided, otherwise generate based on language
-    const prompt = options.prompt || (
-      options.language 
+    const prompt =
+      options.prompt ||
+      (options.language
         ? `Transcribe the user's voice to text, the user's working language is ${getLanguageName(options.language)}`
-        : "Transcribe the user's voice to text"
-    );
+        : "Transcribe the user's voice to text");
     formData.append("prompt", prompt);
 
     // Step 4: Call the transcription service
     const baseUrl = ENV.forgeApiUrl.endsWith("/")
       ? ENV.forgeApiUrl
       : `${ENV.forgeApiUrl}/`;
-    
-    const fullUrl = new URL(
-      "v1/audio/transcriptions",
-      baseUrl
-    ).toString();
+
+    const fullUrl = new URL("v1/audio/transcriptions", baseUrl).toString();
 
     const response = await fetch(fullUrl, {
       method: "POST",
@@ -166,30 +170,30 @@ export async function transcribeAudio(
       return {
         error: "Transcription service request failed",
         code: "TRANSCRIPTION_FAILED",
-        details: `${response.status} ${response.statusText}${errorText ? `: ${errorText}` : ""}`
+        details: `${response.status} ${response.statusText}${errorText ? `: ${errorText}` : ""}`,
       };
     }
 
     // Step 5: Parse and return the transcription result
-    const whisperResponse = await response.json() as WhisperResponse;
-    
+    const whisperResponse = (await response.json()) as WhisperResponse;
+
     // Validate response structure
-    if (!whisperResponse.text || typeof whisperResponse.text !== 'string') {
+    if (!whisperResponse.text || typeof whisperResponse.text !== "string") {
       return {
         error: "Invalid transcription response",
         code: "SERVICE_ERROR",
-        details: "Transcription service returned an invalid response format"
+        details: "Transcription service returned an invalid response format",
       };
     }
 
     return whisperResponse; // Return native Whisper API response directly
-
   } catch (error) {
     // Handle unexpected errors
     return {
       error: "Voice transcription failed",
       code: "SERVICE_ERROR",
-      details: error instanceof Error ? error.message : "An unexpected error occurred"
+      details:
+        error instanceof Error ? error.message : "An unexpected error occurred",
     };
   }
 }
@@ -199,17 +203,17 @@ export async function transcribeAudio(
  */
 function getFileExtension(mimeType: string): string {
   const mimeToExt: Record<string, string> = {
-    'audio/webm': 'webm',
-    'audio/mp3': 'mp3',
-    'audio/mpeg': 'mp3',
-    'audio/wav': 'wav',
-    'audio/wave': 'wav',
-    'audio/ogg': 'ogg',
-    'audio/m4a': 'm4a',
-    'audio/mp4': 'm4a',
+    "audio/webm": "webm",
+    "audio/mp3": "mp3",
+    "audio/mpeg": "mp3",
+    "audio/wav": "wav",
+    "audio/wave": "wav",
+    "audio/ogg": "ogg",
+    "audio/m4a": "m4a",
+    "audio/mp4": "m4a",
   };
-  
-  return mimeToExt[mimeType] || 'audio';
+
+  return mimeToExt[mimeType] || "audio";
 }
 
 /**
@@ -217,37 +221,37 @@ function getFileExtension(mimeType: string): string {
  */
 function getLanguageName(langCode: string): string {
   const langMap: Record<string, string> = {
-    'en': 'English',
-    'es': 'Spanish',
-    'fr': 'French',
-    'de': 'German',
-    'it': 'Italian',
-    'pt': 'Portuguese',
-    'ru': 'Russian',
-    'ja': 'Japanese',
-    'ko': 'Korean',
-    'zh': 'Chinese',
-    'ar': 'Arabic',
-    'hi': 'Hindi',
-    'nl': 'Dutch',
-    'pl': 'Polish',
-    'tr': 'Turkish',
-    'sv': 'Swedish',
-    'da': 'Danish',
-    'no': 'Norwegian',
-    'fi': 'Finnish',
+    en: "English",
+    es: "Spanish",
+    fr: "French",
+    de: "German",
+    it: "Italian",
+    pt: "Portuguese",
+    ru: "Russian",
+    ja: "Japanese",
+    ko: "Korean",
+    zh: "Chinese",
+    ar: "Arabic",
+    hi: "Hindi",
+    nl: "Dutch",
+    pl: "Polish",
+    tr: "Turkish",
+    sv: "Swedish",
+    da: "Danish",
+    no: "Norwegian",
+    fi: "Finnish",
   };
-  
+
   return langMap[langCode] || langCode;
 }
 
 /**
  * Example tRPC procedure implementation:
- * 
+ *
  * ```ts
  * // In server/routers.ts
  * import { transcribeAudio } from "./_core/voiceTranscription";
- * 
+ *
  * export const voiceRouter = router({
  *   transcribe: protectedProcedure
  *     .input(z.object({
@@ -257,7 +261,7 @@ function getLanguageName(langCode: string): string {
  *     }))
  *     .mutation(async ({ input, ctx }) => {
  *       const result = await transcribeAudio(input);
- *       
+ *
  *       // Check if it's an error
  *       if ('error' in result) {
  *         throw new TRPCError({
@@ -266,7 +270,7 @@ function getLanguageName(langCode: string): string {
  *           cause: result,
  *         });
  *       }
- *       
+ *
  *       // Optionally save transcription to database
  *       await db.insert(transcriptions).values({
  *         userId: ctx.user.id,
@@ -276,7 +280,7 @@ function getLanguageName(langCode: string): string {
  *         audioUrl: input.audioUrl,
  *         createdAt: new Date(),
  *       });
- *       
+ *
  *       return result;
  *     }),
  * });
diff --git a/server/auth.logout.test.ts b/server/auth.logout.test.ts
index 3071539..f5e56cc 100644
--- a/server/auth.logout.test.ts
+++ b/server/auth.logout.test.ts
@@ -10,7 +10,10 @@ type CookieCall = {
 
 type AuthenticatedUser = NonNullable<TrpcContext["user"]>;
 
-function createAuthContext(): { ctx: TrpcContext; clearedCookies: CookieCall[] } {
+function createAuthContext(): {
+  ctx: TrpcContext;
+  clearedCookies: CookieCall[];
+} {
   const clearedCookies: CookieCall[] = [];
 
   const user: AuthenticatedUser = {
diff --git a/server/copilot.analyze.test.ts b/server/copilot.analyze.test.ts
index c14f242..2017972 100644
--- a/server/copilot.analyze.test.ts
+++ b/server/copilot.analyze.test.ts
@@ -117,7 +117,9 @@ describe("copilot.analyze", () => {
   it("reports remaining free questions via usageStatus", async () => {
     usageState.count = 1;
     const caller = appRouter.createCaller(makeCtx());
-    const status = await caller.copilot.usageStatus({ clientId: "test-device-3" });
+    const status = await caller.copilot.usageStatus({
+      clientId: "test-device-3",
+    });
     expect(status.unlimited).toBe(false);
     expect(status.remaining).toBe(2);
   });
diff --git a/server/db.ts b/server/db.ts
index bfacb31..9742285 100644
--- a/server/db.ts
+++ b/server/db.ts
@@ -1,7 +1,7 @@
 import { eq } from "drizzle-orm";
 import { drizzle } from "drizzle-orm/mysql2";
 import { InsertUser, users } from "../drizzle/schema";
-import { ENV } from './_core/env';
+import { ENV } from "./_core/env";
 
 let _db: ReturnType<typeof drizzle> | null = null;
 
@@ -56,8 +56,8 @@ export async function upsertUser(user: InsertUser): Promise<void> {
       values.role = user.role;
       updateSet.role = user.role;
     } else if (user.openId === ENV.ownerOpenId) {
-      values.role = 'admin';
-      updateSet.role = 'admin';
+      values.role = "admin";
+      updateSet.role = "admin";
     }
 
     if (!values.lastSignedIn) {
@@ -84,14 +84,17 @@ export async function getUserByOpenId(openId: string) {
     return undefined;
   }
 
-  const result = await db.select().from(users).where(eq(users.openId, openId)).limit(1);
+  const result = await db
+    .select()
+    .from(users)
+    .where(eq(users.openId, openId))
+    .limit(1);
 
   return result.length > 0 ? result[0] : undefined;
 }
 
 // TODO: add feature queries here as your schema grows.
 
-
 // ----- Co-Pilot usage tracking (freemium gate) -----
 import { and, eq as eqOp } from "drizzle-orm";
 import { copilotUsage } from "../drizzle/schema";
@@ -109,7 +112,12 @@ export async function getCopilotUsageToday(clientId: string): Promise<number> {
   const rows = await db
     .select()
     .from(copilotUsage)
-    .where(and(eqOp(copilotUsage.clientId, clientId), eqOp(copilotUsage.usageDay, day)))
+    .where(
+      and(
+        eqOp(copilotUsage.clientId, clientId),
+        eqOp(copilotUsage.usageDay, day)
+      )
+    )
     .limit(1);
   return rows.length > 0 ? rows[0].count : 0;
 }
@@ -122,7 +130,12 @@ export async function incrementCopilotUsage(clientId: string): Promise<number> {
   const existing = await db
     .select()
     .from(copilotUsage)
-    .where(and(eqOp(copilotUsage.clientId, clientId), eqOp(copilotUsage.usageDay, day)))
+    .where(
+      and(
+        eqOp(copilotUsage.clientId, clientId),
+        eqOp(copilotUsage.usageDay, day)
+      )
+    )
     .limit(1);
 
   if (existing.length > 0) {
diff --git a/server/products.ts b/server/products.ts
index 2fe28b5..39e413d 100644
--- a/server/products.ts
+++ b/server/products.ts
@@ -49,7 +49,8 @@ export const PLANS: Plan[] = [
   {
     id: "lifetime",
     name: "Lifetime Access",
-    description: "One payment. Unlimited Co-Pilot. All future updates. Forever.",
+    description:
+      "One payment. Unlimited Co-Pilot. All future updates. Forever.",
     priceUsd: 39.99,
     interval: "once",
     stripePriceId: LIFETIME_PRICE_ID,
@@ -70,5 +71,5 @@ export const PLANS: Plan[] = [
 ];
 
 export function getPlanById(id: PlanId): Plan | undefined {
-  return PLANS.find((p) => p.id === id);
+  return PLANS.find(p => p.id === id);
 }
diff --git a/server/routers.ts b/server/routers.ts
index 43b72fe..41b8125 100644
--- a/server/routers.ts
+++ b/server/routers.ts
@@ -13,7 +13,11 @@ import { eq } from "drizzle-orm";
 
 function getStripe() {
   const key = process.env.STRIPE_SECRET_KEY;
-  if (!key) throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "Stripe not configured" });
+  if (!key)
+    throw new TRPCError({
+      code: "INTERNAL_SERVER_ERROR",
+      message: "Stripe not configured",
+    });
   return new Stripe(key, { apiVersion: "2026-05-27.dahlia" });
 }
 
@@ -60,10 +64,18 @@ export const appRouter = router({
 
         const stripe = getStripe();
         const db = await getDb();
-        if (!db) throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "DB unavailable" });
+        if (!db)
+          throw new TRPCError({
+            code: "INTERNAL_SERVER_ERROR",
+            message: "DB unavailable",
+          });
 
         // Get or create Stripe customer
-        const [userRow] = await db.select().from(users).where(eq(users.id, ctx.user.id)).limit(1);
+        const [userRow] = await db
+          .select()
+          .from(users)
+          .where(eq(users.id, ctx.user.id))
+          .limit(1);
         let customerId = userRow?.stripeCustomerId ?? undefined;
 
         if (!customerId) {
@@ -73,7 +85,10 @@ export const appRouter = router({
             metadata: { userId: ctx.user.id.toString() },
           });
           customerId = customer.id;
-          await db.update(users).set({ stripeCustomerId: customerId }).where(eq(users.id, ctx.user.id));
+          await db
+            .update(users)
+            .set({ stripeCustomerId: customerId })
+            .where(eq(users.id, ctx.user.id));
         }
 
         // Only lifetime (one-time payment) exists — always use payment mode
@@ -84,7 +99,9 @@ export const appRouter = router({
           line_items: [{ price: plan.stripePriceId, quantity: 1 }],
           allow_promotion_codes: true,
           client_reference_id: ctx.user.id.toString(),
-          customer_email: !customerId ? (ctx.user.email ?? undefined) : undefined,
+          customer_email: !customerId
+            ? (ctx.user.email ?? undefined)
+            : undefined,
           metadata: {
             user_id: ctx.user.id.toString(),
             plan_id: plan.id,
@@ -102,7 +119,11 @@ export const appRouter = router({
       const db = await getDb();
       if (!db) return { status: "none", plan: null, currentPeriodEnd: null };
 
-      const [userRow] = await db.select().from(users).where(eq(users.id, ctx.user.id)).limit(1);
+      const [userRow] = await db
+        .select()
+        .from(users)
+        .where(eq(users.id, ctx.user.id))
+        .limit(1);
       return {
         status: userRow?.subscriptionStatus ?? "none",
         plan: userRow?.subscriptionPlan ?? null,
diff --git a/server/routers/copilot.ts b/server/routers/copilot.ts
index 38430bf..8d57bbc 100644
--- a/server/routers/copilot.ts
+++ b/server/routers/copilot.ts
@@ -16,9 +16,14 @@ import { getCopilotUsageToday, incrementCopilotUsage } from "../db";
 export const FREE_DAILY_LIMIT = 3;
 
 /** True if the user has an active or trialing subscription (unlimited access). */
-function hasUnlimitedAccess(user: { subscriptionStatus?: string } | null | undefined): boolean {
+function hasUnlimitedAccess(
+  user: { subscriptionStatus?: string } | null | undefined
+): boolean {
   if (!user) return false;
-  return user.subscriptionStatus === "active" || user.subscriptionStatus === "trialing";
+  return (
+    user.subscriptionStatus === "active" ||
+    user.subscriptionStatus === "trialing"
+  );
 }
 
 const SUGGESTED_QUESTIONS = [
@@ -73,9 +78,16 @@ export const copilotRouter = router({
   usageStatus: publicProcedure
     .input(z.object({ clientId: z.string().min(1).max(128) }))
     .query(async ({ ctx, input }) => {
-      const unlimited = hasUnlimitedAccess(ctx.user as { subscriptionStatus?: string } | null);
+      const unlimited = hasUnlimitedAccess(
+        ctx.user as { subscriptionStatus?: string } | null
+      );
       if (unlimited) {
-        return { unlimited: true, used: 0, limit: FREE_DAILY_LIMIT, remaining: FREE_DAILY_LIMIT };
+        return {
+          unlimited: true,
+          used: 0,
+          limit: FREE_DAILY_LIMIT,
+          remaining: FREE_DAILY_LIMIT,
+        };
       }
       const used = await getCopilotUsageToday(input.clientId);
       return {
@@ -96,7 +108,9 @@ export const copilotRouter = router({
     )
     .mutation(async ({ ctx, input }) => {
       // Freemium gate: subscribers are unlimited; everyone else gets FREE_DAILY_LIMIT/day.
-      const unlimited = hasUnlimitedAccess(ctx.user as { subscriptionStatus?: string } | null);
+      const unlimited = hasUnlimitedAccess(
+        ctx.user as { subscriptionStatus?: string } | null
+      );
       if (!unlimited) {
         const used = await getCopilotUsageToday(input.clientId);
         if (used >= FREE_DAILY_LIMIT) {
@@ -142,7 +156,12 @@ export const copilotRouter = router({
 
         return {
           keywords: parsed.keywords as string[],
-          indexDrilldown: (parsed.indexDrilldown as Array<{ level: number; entry: string; description: string }>) ?? [],
+          indexDrilldown:
+            (parsed.indexDrilldown as Array<{
+              level: number;
+              entry: string;
+              description: string;
+            }>) ?? [],
           article: parsed.article as string,
           articleTitle: (parsed.articleTitle as string) ?? "",
           lookupSteps: (parsed.lookupSteps as string[]) ?? [],
diff --git a/server/storage.ts b/server/storage.ts
index 1d88470..c96fb26 100644
--- a/server/storage.ts
+++ b/server/storage.ts
@@ -10,7 +10,7 @@ function getForgeConfig() {
 
   if (!forgeUrl || !forgeKey) {
     throw new Error(
-      "Storage config missing: set BUILT_IN_FORGE_API_URL and BUILT_IN_FORGE_API_KEY",
+      "Storage config missing: set BUILT_IN_FORGE_API_URL and BUILT_IN_FORGE_API_KEY"
     );
   }
 
@@ -31,7 +31,7 @@ function appendHashSuffix(relKey: string): string {
 export async function storagePut(
   relKey: string,
   data: Buffer | Uint8Array | string,
-  contentType = "application/octet-stream",
+  contentType = "application/octet-stream"
 ): Promise<{ key: string; url: string }> {
   const { forgeUrl, forgeKey } = getForgeConfig();
   const key = appendHashSuffix(normalizeKey(relKey));
@@ -71,7 +71,9 @@ export async function storagePut(
   return { key, url: `/manus-storage/${key}` };
 }
 
-export async function storageGet(relKey: string): Promise<{ key: string; url: string }> {
+export async function storageGet(
+  relKey: string
+): Promise<{ key: string; url: string }> {
   const key = normalizeKey(relKey);
   return { key, url: `/manus-storage/${key}` };
 }
diff --git a/server/stripe.checkout.test.ts b/server/stripe.checkout.test.ts
index f2b32c2..84db9d7 100644
--- a/server/stripe.checkout.test.ts
+++ b/server/stripe.checkout.test.ts
@@ -10,7 +10,9 @@ vi.mock("stripe", () => {
     },
     checkout: {
       sessions: {
-        create: vi.fn().mockResolvedValue({ url: "https://checkout.stripe.com/test" }),
+        create: vi
+          .fn()
+          .mockResolvedValue({ url: "https://checkout.stripe.com/test" }),
       },
     },
   };
@@ -66,7 +68,10 @@ describe("stripe.createCheckoutSession", () => {
     const ctx = createAuthContext();
     const caller = appRouter.createCaller(ctx);
     await expect(
-      caller.stripe.createCheckoutSession({ planId: "invalid_plan", origin: "https://example.com" })
+      caller.stripe.createCheckoutSession({
+        planId: "invalid_plan",
+        origin: "https://example.com",
+      })
     ).rejects.toThrow("Invalid plan");
   });
 
@@ -74,7 +79,10 @@ describe("stripe.createCheckoutSession", () => {
     const ctx = createAuthContext();
     const caller = appRouter.createCaller(ctx);
     await expect(
-      caller.stripe.createCheckoutSession({ planId: "free", origin: "https://example.com" })
+      caller.stripe.createCheckoutSession({
+        planId: "free",
+        origin: "https://example.com",
+      })
     ).rejects.toThrow("Invalid plan");
   });
 });
diff --git a/server/stripeWebhook.ts b/server/stripeWebhook.ts
index 0c4cbfd..bbef42b 100644
--- a/server/stripeWebhook.ts
+++ b/server/stripeWebhook.ts
@@ -15,7 +15,9 @@ export function registerStripeWebhook(app: Express) {
     (req, res, next) => {
       let data = "";
       req.setEncoding("utf8");
-      req.on("data", (chunk) => { data += chunk; });
+      req.on("data", chunk => {
+        data += chunk;
+      });
       req.on("end", () => {
         (req as Request & { rawBody: string }).rawBody = data;
         next();
@@ -49,7 +51,9 @@ export function registerStripeWebhook(app: Express) {
 
       // Test event passthrough — required for Stripe webhook verification
       if (event.id.startsWith("evt_test_")) {
-        console.log("[Webhook] Test event detected, returning verification response");
+        console.log(
+          "[Webhook] Test event detected, returning verification response"
+        );
         res.json({ verified: true });
         return;
       }
@@ -70,8 +74,8 @@ export function registerStripeWebhook(app: Express) {
             const userId = session.metadata?.user_id
               ? parseInt(session.metadata.user_id)
               : session.client_reference_id
-              ? parseInt(session.client_reference_id)
-              : null;
+                ? parseInt(session.client_reference_id)
+                : null;
             const planId = session.metadata?.plan_id ?? null;
 
             if (!userId) break;
@@ -82,7 +86,10 @@ export function registerStripeWebhook(app: Express) {
             // confirms the money actually cleared — `payment_status === "paid"`.
             // Without this guard, any completed-but-unpaid (or test) session
             // would unlock lifetime access.
-            if (session.mode === "payment" && session.payment_status === "paid") {
+            if (
+              session.mode === "payment" &&
+              session.payment_status === "paid"
+            ) {
               updateData.subscriptionStatus = "active";
               updateData.subscriptionPlan = planId ?? "lifetime";
             }
@@ -93,7 +100,10 @@ export function registerStripeWebhook(app: Express) {
             }
 
             if (Object.keys(updateData).length > 0) {
-              await db.update(users).set(updateData).where(eq(users.id, userId));
+              await db
+                .update(users)
+                .set(updateData)
+                .where(eq(users.id, userId));
             }
             break;
           }
@@ -111,7 +121,12 @@ export function registerStripeWebhook(app: Express) {
 
             if (!userRow) break;
 
-            const status = sub.status as "active" | "trialing" | "past_due" | "canceled" | "none";
+            const status = sub.status as
+              | "active"
+              | "trialing"
+              | "past_due"
+              | "canceled"
+              | "none";
             const firstItem = sub.items.data[0];
             const periodEnd = firstItem?.current_period_end
               ? new Date(firstItem.current_period_end * 1000)
@@ -122,14 +137,19 @@ export function registerStripeWebhook(app: Express) {
             const interval = sub.items.data[0]?.price?.recurring?.interval;
             const planId = interval === "year" ? "pro_annual" : "pro_monthly";
 
-            await db.update(users).set({
-              stripeSubscriptionId: sub.id,
-              subscriptionStatus: status,
-              subscriptionPlan: planId,
-              subscriptionCurrentPeriodEnd: periodEnd,
-            }).where(eq(users.id, userRow.id));
-
-            console.log(`[Webhook] Updated subscription for user ${userRow.id}: ${status}`);
+            await db
+              .update(users)
+              .set({
+                stripeSubscriptionId: sub.id,
+                subscriptionStatus: status,
+                subscriptionPlan: planId,
+                subscriptionCurrentPeriodEnd: periodEnd,
+              })
+              .where(eq(users.id, userRow.id));
+
+            console.log(
+              `[Webhook] Updated subscription for user ${userRow.id}: ${status}`
+            );
             break;
           }
 
@@ -150,12 +170,17 @@ export function registerStripeWebhook(app: Express) {
               ? new Date(deletedItem.current_period_end * 1000)
               : null;
 
-            await db.update(users).set({
-              subscriptionStatus: "canceled",
-              subscriptionCurrentPeriodEnd: deletedPeriodEnd,
-            }).where(eq(users.id, userRow.id));
-
-            console.log(`[Webhook] Subscription canceled for user ${userRow.id}`);
+            await db
+              .update(users)
+              .set({
+                subscriptionStatus: "canceled",
+                subscriptionCurrentPeriodEnd: deletedPeriodEnd,
+              })
+              .where(eq(users.id, userRow.id));
+
+            console.log(
+              `[Webhook] Subscription canceled for user ${userRow.id}`
+            );
             break;
           }
 
@@ -171,7 +196,10 @@ export function registerStripeWebhook(app: Express) {
 
             if (!userRow) break;
 
-            await db.update(users).set({ subscriptionStatus: "past_due" }).where(eq(users.id, userRow.id));
+            await db
+              .update(users)
+              .set({ subscriptionStatus: "past_due" })
+              .where(eq(users.id, userRow.id));
             console.log(`[Webhook] Payment failed for user ${userRow.id}`);
             break;
           }
diff --git a/shared/const.ts b/shared/const.ts
index 112ffc5..fa49709 100644
--- a/shared/const.ts
+++ b/shared/const.ts
@@ -1,5 +1,5 @@
 export const COOKIE_NAME = "app_session_id";
 export const ONE_YEAR_MS = 1000 * 60 * 60 * 24 * 365;
 export const AXIOS_TIMEOUT_MS = 30_000;
-export const UNAUTHED_ERR_MSG = 'Please login (10001)';
-export const NOT_ADMIN_ERR_MSG = 'You do not have required permission (10002)';
+export const UNAUTHED_ERR_MSG = "Please login (10001)";
+export const NOT_ADMIN_ERR_MSG = "You do not have required permission (10002)";
diff --git a/todo.md b/todo.md
index f4c2170..de869e5 100644
--- a/todo.md
+++ b/todo.md
@@ -1,11 +1,12 @@
 # Code Compass TODO
 
 ## Stripe Payments
+
 - [x] Add stripe_customer_id and stripe_subscription_id columns to users table in drizzle/schema.ts
 - [x] Run pnpm db:push to migrate schema
 - [x] Create server/products.ts with plan definitions (Free, Pro monthly, Pro annual)
 - [x] Create Stripe checkout session tRPC procedure in server/routers.ts
-- [x] Create Stripe webhook handler at /api/stripe/webhook in server/_core/index.ts
+- [x] Create Stripe webhook handler at /api/stripe/webhook in server/\_core/index.ts
 - [x] Build /pricing page with plan cards and checkout buttons
 - [x] Build /payment-success page
 - [x] Build /payment-cancel page
@@ -13,14 +14,15 @@
 - [x] Write vitest for checkout session procedure
 
 ## AI Co-Pilot Page
+
 - [x] Add Gemini-powered tRPC procedure: analyze any NEC question, return keywords + lookup path + article citation + explanation
 - [x] Build /copilot page: dark bg, orange accent, input feed at top, suggested keyword chips, results panel, bottom tab nav (Search/Index/Co-Pilot)
 - [x] Add AI icon to AppLayout sidebar nav
 - [x] Wire Gemini API key via GEMINI_API_KEY env var on server (uses built-in invokeLLM)
 - [x] Write vitest for the copilot.analyze procedure
 
-
 ## 24-Hour Launch (Revenue Roadmap)
+
 - [x] Add light mode toggle (dark/light theme switcher in header)
 - [x] Add custom back button to all pages (state-aware navigation)
 - [x] Simplify landing page (remove feature overload, 3-section layout: Hero + CTA + Social Proof)
@@ -32,9 +34,13 @@
 - [ ] Share Stripe payment link in Facebook electrician groups — MANUAL (marketing)
 
 ## Week 1 Refinements (POST-LAUNCH — not launch-blocking)
+
 # These need Drizzle schema changes + new tRPC procedures + tests. Build them
+
 # properly in a follow-up (push the repo so the app can be built/tested first),
+
 # not blind into a snapshot right before the payment test.
+
 - [ ] Add gamification (progress bar, study streaks, badges)
 - [ ] Add tiered pricing UI ($9.99/mo, $79/year, $149 lifetime) — needs live Stripe prices per tier
 - [ ] Build performance analytics dashboard (weak areas, success rate by article)
@@ -42,6 +48,7 @@
 - [ ] Add social proof copy to landing page — NEEDS REAL numbers/testimonials. Do NOT ship fabricated "500+ electricians"/fake quotes (dishonest + FTC risk). Provide real ones to drop in.
 
 ## Front-End Redesign (Method-First Beta)
+
 - [x] Theme switcher: exactly 2 themes — OLED Black (#000000, default) + Light (readability-first), drop Industrial Dark
 - [x] Theme toggle in header on every screen (single shared toggle in root layout), persist in localStorage cc_theme, default OLED Black
 - [x] Full-width welcome page: hero (name + promise line), 3 modes in a row, primary CTA (Get Started) + Sign in
@@ -51,11 +58,13 @@
 - [x] Test theme persistence + welcome page + per-question guide, checkpoint, push to GitHub
 
 ## OAuth In-App Browser Fix (Error 403 disallowed_useragent)
+
 - [x] Detect in-app browsers (Messenger/Instagram/Facebook/TikTok/X/LinkedIn/Snapchat/LINE) - useInAppBrowser hook + 6 passing tests
 - [x] Show 'Open in Safari/Chrome' guidance banner (InAppBrowserBanner) mounted globally in AppLayout, with copy-link button
 - [x] Test detection logic (15/15 tests pass), checkpoint, guide publish
 
 ## Homepage Redesign + Paywall (Jun 6 2026)
+
 - [x] Find high-quality electrical/lightning/nature hero image (Unsplash/Pexels) — hero-electrician-tower wired in Dashboard.tsx
 - [x] Flip default theme to Light for public pages (home, pricing, onboarding) — :root is now Light in index.css
 - [x] Redesign homepage: full-bleed hero image, minimal text, single CTA — Dashboard.tsx
@@ -63,8 +72,9 @@
 - [ ] Test, checkpoint, publish — MANUAL (run pnpm check + load app in Manus, then publish)
 
 ## Launch Blockers (theme + checkout) — Jun 6 2026
+
 - [x] All pages default to Light theme; OLED reserved for paid users only — index.css :root=Light, OLED under .dark (paid only)
 - [x] OLED toggle hidden/locked for free users (only shows after paywall) — AppLayout: {oledUnlocked && <ThemeToggle/>}, unlocked only on active/trialing sub
 - [x] Diagnose card-declined checkout issue (mom's Visa) — ROOT CAUSE: Stripe in TEST mode; live cards rejected (only 4242... works in test). Code reads keys from env, nothing hardcoded.
-- [ ] Fix checkout so cards are accepted — CONFIG (no code): in host env set STRIPE_SECRET_KEY=sk_live_…, STRIPE_LIFETIME_PRICE_ID=<live price id>, STRIPE_WEBHOOK_SECRET=<live whsec_…> after Stripe KYC. Code is now env-ready (products.ts).
+- [ ] Fix checkout so cards are accepted — CONFIG (no code): in host env set STRIPE*SECRET_KEY=sk_live*…, STRIPE*LIFETIME_PRICE_ID=<live price id>, STRIPE_WEBHOOK_SECRET=<live whsec*…> after Stripe KYC. Code is now env-ready (products.ts).
 - [ ] Test, checkpoint, guide publish — MANUAL (after live keys: run one real low-value charge end-to-end)
diff --git a/vite.config.ts b/vite.config.ts
index 8d4acaf..1aed729 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -56,7 +56,7 @@ function writeToLogFile(source: LogSource, entries: unknown[]) {
   const logPath = path.join(LOG_DIR, `${source}.log`);
 
   // Format entries with timestamps
-  const lines = entries.map((entry) => {
+  const lines = entries.map(entry => {
     const ts = new Date().toISOString();
     return `[${ts}] ${JSON.stringify(entry)}`;
   });
@@ -132,7 +132,7 @@ function vitePluginManusDebugCollector(): Plugin {
         }
 
         let body = "";
-        req.on("data", (chunk) => {
+        req.on("data", chunk => {
           body += chunk.toString();
         });
 
@@ -150,7 +150,13 @@ function vitePluginManusDebugCollector(): Plugin {
   };
 }
 
-const plugins = [react(), tailwindcss(), jsxLocPlugin(), vitePluginManusRuntime(), vitePluginManusDebugCollector()];
+const plugins = [
+  react(),
+  tailwindcss(),
+  jsxLocPlugin(),
+  vitePluginManusRuntime(),
+  vitePluginManusDebugCollector(),
+];
 
 export default defineConfig({
   plugins,