refactor: use optimized image for background

[steveiliop56]

Summary by CodeRabbit

• Bug Fixes

  • Updated the default UI background image reference to use the WebP format for more efficient image delivery.

• Documentation

  • Updated the background image attribution with the contributor’s full name and profile link.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Team

Run ID: 838d707f-89aa-4d09-8ce2-97d342bbd8e3

📥 Commits

Reviewing files that changed from the base of the PR and between 11ba687 and 1df5553.

⛔ Files ignored due to path filters (2)

• assets/background.jpg is excluded by !**/*.jpg
• frontend/public/background.jpg is excluded by !**/*.jpg

📒 Files selected for processing (5)

• .env.example
• README.md
• frontend/public/background.webp
• internal/model/config.go
• internal/test/test.go

Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review.

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📝 Walkthrough

Walkthrough

The pull request changes the configured background image from .jpg to .webp and updates the README acknowledgement with the contributor’s linked name and Unsplash profile.

Changes

Background asset update

Layer / File(s)	Summary
Background image path alignment .env.example, internal/model/config.go, internal/test/test.go	The example, default, and test UI configurations now use /background.webp.
Background image attribution README.md	The acknowledgement now links “Siru Zhou” to the contributor’s Unsplash profile.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Merge Risk: ⚪ Minimal · up to 1df55

This localized change switches the background asset to WebP while keeping existing configuration behavior intact; no actionable merge-blocking risk remains after normal checks and review.

Suggested reviewers: rycochet

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 2 files. (2 skipped: 2…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the main change: replacing the background image with an optimized image format.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 2 files. (2 skipped: 2 unsupported.)

• Fix all pre-merge checks with AI

✨ Finishing Touches 💡 1

📝 Generate docstrings 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/bg-load-time

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
internal/model/config.go	0.00%	1 Missing ⚠️
internal/test/test.go	0.00%	1 Missing ⚠️

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