Sync frontend step bugfix

Split architecture: Trainer=backend, Demo=dashboard

Add hotseat multiplayer Red Team controls and 4 architectural fixes

Restore internal dashboard integration

Remove dashboard from backend

Replace SOAR playbooks with agentic micro-tools.

Fix: stateful /demo endpoints, correct HF YAML, fix phantom data and 422 step errors

Fix phantom data bug: correct HF baseUrl, health endpoint for liveness probe, zero initial scores

Initial commit of CyberSOC upgraded RLVR environment