[AntonNiklasson]

Summary

Add pnpm test:e2e and a browser CI job. The scenario checks queue transitions through real HTTP, SQLite and normal renderer polling, and records console errors and request diagnostics without mocking renderer responses.

Validation

Local stack head 1d1d925 passed:

• pnpm typecheck, pnpm test (171 unit/integration tests)
• pnpm lint (including four boundary checks), pnpm fmt:check
• pnpm test:e2e (five Chromium scenarios)
• pnpm test:desktop (packaged macOS arm64 launch, restart, SQLite and shutdown)

These are local results; GitHub checks are reported separately.

How to review

Read harness/src/board.e2e.ts, then playwright.config.ts and feedback-loop.yml. The queue state icons gain accessible labels for assertions.

Visuals

Failure screenshots and traces are retained in the Playwright report; successful-state artifacts are added in layer 8.

Related

Part of #84. Prerequisite: #83.

This PR is part of a stack; review and merge from the bottom upward. Each PR targets the preceding branch.

1. #85: Use the sync package for all desktop GitHub access
2. #86: Add a deterministic GitHub simulator
3. #87: Run an isolated interactive status board
4. #88: Verify renderer polling through the real sync engine ← This PR
5. #89: Show persisted sync health and stale-data warnings
6. #90: Exercise conflict, review, rate-limit and partial-outage states
7. #91: Guard clients against bypassing the public sync API
8. #92: Attach named visual states to browser reports
9. #93: Launch and restart the packaged Electron app in isolation