feat: add Supervisor process manager for service management

- Add supervisord.conf with ComfyUI and orchestrator services
- Update Ansible playbook with supervisor installation tag
- Rewrite start-all.sh and stop-all.sh to use Supervisor
- Add status.sh script for checking service status
- Update arty.yml with supervisor commands and shortcuts
- Update CLAUDE.md with Supervisor documentation and troubleshooting
- Services now auto-restart on crashes with centralized logging

Benefits:
- Better process control than manual pkill/background jobs
- Auto-restart on service crashes
- Centralized log management in /workspace/logs/
- Web interface for monitoring (port 9001)
- Works perfectly in RunPod containers (no systemd needed)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

scripts/stop-all.sh

@@ -1,22 +1,49 @@
 #!/bin/bash
 #
 # Stop AI Services
-# Gracefully stops all running AI services
+# Gracefully stops all services managed by Supervisor
 #
 
 set -e
 
+WORKSPACE_DIR="${WORKSPACE_DIR:-/workspace}"
+SUPERVISORD_CONF="${WORKSPACE_DIR}/supervisord.conf"
+
 echo "========================================="
 echo "  Stopping AI Services"
 echo "========================================="
 echo ""
 
-# Kill orchestrator and model processes
-echo "Stopping orchestrator..."
-pkill -f "orchestrator_subprocess.py" || echo "Orchestrator not running"
+# Check if supervisord is running
+if [ ! -f "${WORKSPACE_DIR}/supervisord.pid" ]; then
+    echo "Supervisor is not running (no PID file found)"
+    echo "Cleaning up any stray processes..."
+    pkill -f "orchestrator_subprocess.py" || echo "  - Orchestrator not running"
+    pkill -f "ComfyUI.*main.py" || echo "  - ComfyUI not running"
+    echo ""
+    echo "All services stopped"
+    exit 0
+fi
 
-echo "Stopping model services..."
-pkill -f "models/vllm/server.py" || echo "vLLM not running"
+PID=$(cat "${WORKSPACE_DIR}/supervisord.pid")
+if ! ps -p "$PID" > /dev/null 2>&1; then
+    echo "Supervisor PID file exists but process is not running"
+    echo "Removing stale PID file..."
+    rm -f "${WORKSPACE_DIR}/supervisord.pid"
+    echo ""
+    echo "All services stopped"
+    exit 0
+fi
+
+# Stop all supervised services
+echo "Stopping all supervised services..."
+supervisorctl -c "${SUPERVISORD_CONF}" stop all
+
+sleep 2
+
+# Shutdown supervisord
+echo "Shutting down Supervisor daemon..."
+supervisorctl -c "${SUPERVISORD_CONF}" shutdown
 
 echo ""
 echo "All services stopped"