chore: fix push sort order to be latest-first

[andypols]

When viewing push requests, the current implementation assumes MongoDB (or the file-based DB) returns results in a consistent order, and the UI simply reverses whatever it receives. Because the database query does not guarantee ordering, pushes could be displayed in an inconsistent (often effectively random) order.

This PR fixes that by:

• Adding an explicit sort in the database layer so the most recent pushes are returned first.

• Simplifying the push table rendering to rely on backend ordering rather than reordering in the UI.

[netlify]

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🔨 Latest commit	5b992bd
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[codecov]

Codecov Report

❌ Patch coverage is 73.33333% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.77%. Comparing base (25277e3) to head (5b992bd).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
src/db/file/pushes.ts	84.61%	2 Missing ⚠️
src/db/mongo/pushes.ts	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1431      +/-   ##
==========================================
- Coverage   81.78%   81.77%   -0.01%     
==========================================
  Files          67       67              
  Lines        4766     4769       +3     
  Branches      827      827              
==========================================
+ Hits         3898     3900       +2     
- Misses        852      853       +1     
  Partials       16       16              

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[dcoric]

Looks good to me overall.

Non-blocking suggestion: we should add follow-up tests for the new sort behavior.

• Add a getPushes unit test in test/db/file/pushes.test.ts to assert NeDB query uses .sort({ timestamp: -1 }).
• Add a getPushes unit test in test/db/mongo/pushes.test.ts to assert findDocuments is called with sort: { timestamp: -1 } and timestamp in projection.

[andypols]

@dcoric Good shout on the tests. Ok if I add a separate PR for that?

[jescalada]

LGTM 🚀 This also fixes the issue with E2E tests failing locally due to the most recently added repos not showing up on the first page.

Feel free to add tests in a separate PR! As for the pagination/filtering, it'd be great to implement it after the dust settles on the v2 release - since a few PRs out there (test coverage, any/as refactor) are touching too many files and causing conflicts.