- Create api_response.ts helper for consistent { success, error/data } format
- Add radix parameter (10) to all parseInt calls across controllers and services
- Fix race condition in DockerService by making in-memory guard atomic
- Fix container command splitting to handle quoted arguments properly
- Stop leaking internal error.message to API responses; log details server-side
https://claude.ai/code/session_01JFvpTYgm8GiE4vJ4cJKsFx
