## Summary
- Fixed flaky `select_component.spec.ts > select component next.js` test
by increasing the chat completion timeout for Next.js builds
- Added configurable `timeout` parameter to `sendPrompt()` and
`waitForChatCompletion()` in the test page objects
- The test was timing out because Next.js apps take longer to build on
the first prompt, exceeding the default MEDIUM timeout (15s local / 30s
CI)

## Flaky test analysis
Scanned 6 recent PRs by wwwillchen/wwwillchen-bot for flaky tests. Found
30+ unique flaky test occurrences across these specs:
- `setup_flow.spec.ts` (6 occurrences) - passed 10x runs, already stable
- `select_component.spec.ts` (6 occurrences) - **confirmed flaky,
fixed**
- `setup.spec.ts` (5 occurrences) - passed 10x runs, already stable
- `context_manage.spec.ts` (5 occurrences) - passed 10x runs, already
stable
- `undo.spec.ts` (3 occurrences) - passed 10x runs, already stable
- `debugging_logs.spec.ts` (3 occurrences) - passed 10x runs, already
stable

## Test plan
- [x] Confirmed flakiness: `select_component.spec.ts` failed 1/10 runs
before fix
- [x] Verified fix: all 60 tests passed (6 tests × 10 runs) after the
fix
- [x] Verified other flaky specs are currently stable (all passed 10x
repeat runs)

🤖 Generated with [Claude Code](https://claude.com/claude-code)
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Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>