Update integration tests to pass access tokens: - Pass accessToken to SubscribeToCommunity() calls - Add comments explaining token usage in tests - Verify subscribe/unsubscribe E2E flows with real auth Tests now validate the complete authentication chain: 1. User authenticates with PDS (gets access token) 2. User makes request with Authorization header 3. Middleware validates JWT and stores token 4. Handler extracts token from context 5. Service uses token to write to user's PDS repo 6. PDS validates user owns the repository 7. Record successfully written All E2E tests pass with real PDS authentication.