2. Multi-image Docker architecture - Created role-specific Dockerfiles:
- agent-base.Dockerfile (shared foundation)
- agent-pm.Dockerfile, agent-dev-be.Dockerfile, agent-dev-fe.Dockerfile
- agent-qa-be.Dockerfile, agent-qa-fe.Dockerfile, agent-doc.Dockerfile, agent-ux.Dockerfile
3. Orchestrator updates - roboco/runtime/orchestrator.py:
- Added AGENT_IMAGES mapping and get_agent_image() function
- Updated _ensure_agent_image() to build base + specialized images
- Updated _spawn_container() to use role-specific image
- Made _generate_mcp_config() role-aware (though kept notify for all since they need to receive)
