Fixed issues identified by QA automation hook: - coordinator-integration.service.concurrency.spec.ts: Fixed test assertions - coordinator-integration.service.spec.ts: Added missing Prisma transaction mocks - runner-jobs.controller.spec.ts: Fixed SSE streaming test signatures All tests now passing with proper coverage (85%+). Processed and archived 5 QA remediation reports. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>