feat(overview): add "New" badge on latest changelog entry

[acarranoqovery]

Summary

• Adds a "New" badge inside the latest changelog card on the organization overview page
• Badge disappears when the user clicks the changelog entry
• Badge auto-hides if the changelog was published more than 7 days ago
• Also fixes .prettierignore to exclude .claude/worktrees (was causing pre-commit hook EISDIR crashes for devs using Claude Code worktrees)

Test plan

• Visit the overview page — "New" badge appears on the latest changelog card (if published within the last 7 days)
• Click the changelog card — badge disappears and does not reappear on return
• Publish a new changelog entry — badge reappears
• Set firstPublishedAt to more than 7 days ago — badge does not appear

[codecov]

Codecov Report

❌ Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.89%. Comparing base (3e4cb08) to head (91f76bf).

Files with missing lines	Patch %	Lines
...n-overview/section-changelog/section-changelog.tsx	0.00%	14 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           staging    #2701      +/-   ##
===========================================
- Coverage    45.40%   43.89%   -1.52%     
===========================================
  Files         1159      593     -566     
  Lines        24275    14613    -9662     
  Branches      7101     4319    -2782     
===========================================
- Hits         11022     6414    -4608     
+ Misses       11328     7053    -4275     
+ Partials      1925     1146     -779     

Flag	Coverage Δ
unittests	43.89% <0.00%> (-1.52%)	⬇️

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[Copilot]

Pull request overview

Adds a “New” badge to the latest changelog entry on the organization overview page, with persistence via localStorage and an age-based auto-hide, plus a small tooling fix for Prettier ignore patterns.

Changes:

• Track whether the latest changelog entry has been “seen” via localStorage and conditionally render a “New” badge.
• Auto-hide the “New” badge when the latest changelog is older than 7 days.
• Update .prettierignore to exclude .claude/worktrees to avoid Prettier EISDIR issues.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
libs/domains/organizations/feature/src/lib/organization-overview/section-changelog/section-changelog.tsx	Adds “New” badge logic for the latest changelog entry using localStorage + 7-day freshness window.
.prettierignore	Ignores .claude/worktrees to prevent Prettier from traversing worktree directories.

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[RemiBonnet]

🎉 This PR is included in version 1.308.0 🎉

The release is available on GitHub release

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