Fix V1 release header preview

[senyo888]

Scope

• Change the v1.0.0 release header GIF and static fallback URLs from the not-yet-created v1.0.0 tag to the already-merged files on main.
• Document why the release note deliberately uses main-hosted assets during draft review.

Reason

GitHub does not create the release tag until publication. The previous tag-based raw URLs therefore returned HTTP 404 in the draft preview and GitHub displayed only the image alt text.

Files affected

• docs/releases/v1.0.0.md

Runtime impact

None. Pet packages, installer routes, metadata, sprite hashes, and application behavior are unchanged.

UI impact

The GitHub release draft now renders the animated laboratory header before the release tag exists. The reduced-motion PNG fallback uses the same live source strategy. README and public-site UI are unchanged.

Migration impact

None. No migration, restart, refresh, or dashboard action is required.

Validation performed

• Both corrected raw URLs returned HTTP 200 with image/gif and image/png content types.
• Remote GIF SHA-256 matched the tracked file: ace3035b3259efbc19a0f138eff3f23eeb191be572d04c1cf020f8613c0fc737.
• Remote PNG SHA-256 matched the tracked file: 8866ccf0c891fd7245f3d7efac9dfe5025c9e8b54500308110184bcb2df9738f.
• GitHub Markdown API preserved the <picture>, GIF URL, and reduced-motion source.
• Playwright decoded both images at 1200 x 560; the laboratory composition was visually inspected; console errors/warnings: 0.
• .codex/scripts/project_preflight.sh passed: 7 published pets, 61 site references, 81 Markdown references, privacy scan 84 candidates/0 matches.
• git diff --check and staged diff checks passed.

Deterministic lane-ordering risk: none. UI truth consistency risk: none; only the hosting ref changed and exact hashes match.

Rollback safety

Revert this commit to restore tag-based URLs. The GitHub release remains a separate draft and can be edited independently without affecting runtime or package files.

Summary by CodeRabbit

• Documentation
  • Updated release-page image references to use the main branch assets.
  • Ensured both reduced-motion and animated image variants display correctly.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 4cf8856a-e4e2-45de-b7a8-c4f092d6efa5

📥 Commits

Reviewing files that changed from the base of the PR and between 1d5ce77 and 3b83826.

📒 Files selected for processing (1)

• docs/releases/v1.0.0.md

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📝 Walkthrough

Walkthrough

The v1.0.0 release header’s reduced-motion and animated image URLs were changed from version-scoped assets to assets hosted on the main branch.

Changes

Release asset references

Layer / File(s)	Summary
Update release header assets docs/releases/v1.0.0.md	The <picture> header references main-branch URLs for both image variants.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description covers the change, but it does not follow the repository's required template sections.	Reformat it to match the template and add Summary, Change type, Pet details, Package checklist, Validation performed, Impact, and Rights.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title is concise and accurately reflects the release header preview fix.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bella/fix-v1-release-header

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