fix(mobile): add member paywall button

[ocavue]

One tap on the member button shows a toast and lets the user into the app for 7 days; the link to reflect.app/claim-reflect-open returns once that page is ready.

Summary by CodeRabbit

• New Features
  • Added a member-specific paywall experience with a seven-day snooze period.
  • Members receive an on-screen notification during the temporary snooze period.
  • After the deadline, members can open the free-year claim page directly from the paywall.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 3f1adb33-e562-4d55-af7f-4e3aab44a3ab

📥 Commits

Reviewing files that changed from the base of the PR and between d28041e and 05d604a.

📒 Files selected for processing (2)

• apps/desktop/src/mobile/mobile-root.tsx
• apps/desktop/src/mobile/paywall-screen.tsx

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Walkthrough

The mobile app now renders Sonner toasts. Existing Reflect members can snooze the paywall for seven days before the stopgap deadline or open the free-year claim URL after it.

Changes

Member Paywall Continuation

Layer / File(s)	Summary
Mobile toast provider apps/desktop/src/mobile/mobile-root.tsx	The mobile provider tree now includes a top-centered Sonner Toaster.
Member continuation flow apps/desktop/src/mobile/paywall-screen.tsx	The paywall defines member-specific timing and claim URL constants. The member action shows a toast and snoozes the paywall before the deadline, or opens the claim URL after the deadline.

Estimated code review effort: 2 (Simple) | ~10 minutes

Sequence Diagram(s)

sequenceDiagram
  participant Member
  participant PaywallScreen
  participant SonnerToaster
  participant ClaimPage
  Member->>PaywallScreen: Select member action
  alt Before stopgap deadline
    PaywallScreen->>SonnerToaster: Show snooze toast
    PaywallScreen->>PaywallScreen: Snooze paywall for seven days
  else After stopgap deadline
    PaywallScreen->>ClaimPage: Open free-year claim URL
  end

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch paywall-claim-link

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