Block a user
[P0] Single-container lifecycle: start_container / stop_container / restart_container
[P3] Export/import for projects, containers, and images
[P3] pause / unpause container
[P2] Aggregate overview — total CPU / RAM / network across containers
[P2] Registry browse/search
[P1] inspect_image — image details, layers, env, exposed ports
[P1] pull_image — standalone image pull from registry
[P0] Surface build_stream output to diagnose BUILD_FAILED
[P0] Single-container lifecycle: start_container / stop_container / restart_container