⚡ Bolt: Improve LCP by prioritizing hero image download

[NickJLange]

💡 What: Added fetchPriority="high" to the hero image component in src/pages/index.js.
🎯 Why: The logo image in the hero section is the Largest Contentful Paint (LCP) element for the homepage. Without explicit prioritization, the browser might delay downloading it while processing other resources.
📊 Impact: Measurably improves LCP by establishing connection early and prioritizing image load over less critical assets.
🔬 Measurement: Verify via Lighthouse or Chrome DevTools Performance tab, looking at the "LCP" milestone time.

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PR created automatically by Jules for task 3631243265243769605 started by @NickJLange

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Summary by cubic

Improve homepage LCP by prioritizing the hero logo image download. Set fetchPriority="high" on the hero image in src/pages/index.js so the browser fetches it first.

^{Written for commit 82adb4e. Summary will update on new commits. Review in cubic}

Summary by CodeRabbit

• Chores
  • Optimized homepage image loading for better performance.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: b1eea555-7c4a-45c3-833e-ab12e77b0925

📥 Commits

Reviewing files that changed from the base of the PR and between 20dfc1d and 82adb4e.

📒 Files selected for processing (1)

• src/pages/index.js

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📝 Walkthrough

Walkthrough

The homepage hero image in src/pages/index.js is updated to include a fetchPriority="high" attribute with a comment explaining its intent to improve LCP (Largest Contentful Paint). No structural changes affect the header layout or image properties.

Changes

Homepage Performance

Layer / File(s)	Summary
Hero image fetch priority src/pages/index.js	The hero logo <img> element receives a fetchPriority="high" attribute and an explanatory comment to prioritize LCP optimization. Source, alt text, width, and height remain unchanged.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• NickJLange/5l-labs.com#100: Both PRs optimize the homepage hero image loading by modifying how the LCP-impacting asset is handled (this PR adds fetchPriority="high"; PR #100 swaps the logo from PNG to a smaller WebP format).

Poem

🐰 A swift fetch priority high,
The hero image speeds on by,
LCP's dance grows ever light,
The homepage loads with pure delight!

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	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 directly and clearly describes the main change: adding fetchPriority="high" to the hero image to improve LCP. It matches the changeset precisely.
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.

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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 bolt-lcp-optimization-3631243265243769605

Warning

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🔧 ESLint

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[cubic-dev-ai]

No issues found across 1 file

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