Source of truth for container runtime config moves from
groups/<folder>/container.json to a new container_configs table.
The file becomes a materialized view written at spawn time.
- New container_configs table with scalar columns (provider, model,
effort, image_tag, assistant_name, max_messages_per_prompt) and
JSON columns (mcp_servers, packages_apt, packages_npm, skills,
additional_mounts)
- Startup backfill seeds DB from existing container.json files
- materializeContainerJson() replaces readContainerConfig + ensureRuntimeFields
- Self-mod handlers (install_packages, add_mcp_server) write to DB
- Provider cascade simplified: session -> container_configs -> 'claude'
- ncl groups config-{get,update,add-mcp-server,remove-mcp-server,
add-package,remove-package} custom operations
- restartAgentGroupContainers() helper for config change propagation
- Container side unchanged (still reads /workspace/agent/container.json)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
