## Summary
- Fix flaky e2e tests across 6 test files by adding proper awaits,
better CSS class matching, accordion state checks, and explicit waits
for UI elements
- Key fixes: missing `await` on expect in delete_app, regex anchoring
for favorite_app class matching, accordion expansion guards in
git_collaboration, `pressSequentially` for mention trigger detection,
and visibility waits in supabase_migrations

## Test plan
- Run the full e2e test suite to verify the fixed tests pass reliably
- Specifically verify: `delete_app`, `favorite_app`, `file_tree_search`,
`git_collaboration`, `mention_files`, and `supabase_migrations` tests

🤖 Generated with [Claude Code](https://claude.com/claude-code)
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<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Stabilized flaky e2e tests by improving selectors and adding explicit
waits. Reliability is improved across delete_app, favorite_app,
file_tree_search, git_collaboration, mention_files, and
supabase_migrations.

- **Bug Fixes**
  - Added missing await for visibility assertion in delete_app.
  - Anchored favorite star class regex to avoid matching hover:fill.
  - Updated file_tree_search to expect main.tsx.
- Guarded Git Collaboration flows by checking accordion expansion and
element visibility; standardized on Timeout.MEDIUM.
- Used pressSequentially and waits for @ mention menu; verified Supabase
migrations switch with toBeChecked() after visibility.

<sup>Written for commit a28a3d981e049c023f3a5343ae57b813961a6680.
Summary will update on new commits.</sup>

<!-- End of auto-generated description by cubic. -->

---------
Co-authored-by: Will Chen <willchen90@gmail.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>