- API versioning: all REST endpoints prefixed with /api/v1/ - Structured logging: replaced stdlib logging with structlog (console/JSON modes) - Alembic migrations: versioned DB schema with initial migration - Error standardization: global exception handlers for consistent envelope format - Interrupt cleanup: asyncio background task for expired interrupt removal - Integration tests: +30 tests (analytics, replay, openapi, error, session APIs) - Frontend tests: +57 tests (all components, pages, useWebSocket hook) - Backend: 557 tests, 89.75% coverage | Frontend: 80 tests, 16 test files
Generic single-database configuration.