Gui: Add IntentFrame Control Plane (port 9720) with operator UI and Docker test harness

[maniotrix]

Summary

• Introduces a standalone IntentFrame Control Plane on port 9720 — separate from Hermes chat (9119) — with a React operator UI (Overview, Governance, Policy, Audit) and FastAPI backend under intentframe-control-plane/.
• Adds CLI lifecycle commands: intentframe-integrations control-plane start|stop|status|serve, plus --json on status/governance/policy reads.
• Updates the installer to build the frontend, seed ~/.intentframe/.env, and start the control plane by default (--no-control-plane for CI/Docker).
• Extends the Docker harness (tests/docker/) to publish 9720 and 9119, seed Docker config, start the control plane, then bring up Hermes enforcement + dashboard.
• Fixes control-plane health checks that could deadlock or falsely report unhealthy on single-worker uvicorn (loopback probe for 0.0.0.0, lightweight /api/health, in-process status skips self HTTP probe).

Test plan

• uv run --package intentframe-control-plane python tests/intentframe_control_plane/test_lifecycle.py
• uv run --package intentframe-control-plane python tests/intentframe_control_plane/test_read_models.py
• uv run --package intentframe-control-plane python tests/intentframe_control_plane/test_server.py
• Local: intentframe-integrations control-plane start → open http://127.0.0.1:9720 → Overview shows UI server: healthy
• Docker: REF=gui docker compose -f tests/docker/docker-compose.test.yml up → http://localhost:9720 healthy, http://localhost:9119/chat loads
• Optional smoke: tests/docker/test_control_plane_smoke.sh
• CLI: intentframe-integrations control-plane status reports running + healthy from an external shell