feat: configure supervisord to run from /workspace/ai

- Create logs directory with .gitkeep
- Update .gitignore to track logs dir but ignore log files
- Update supervisord.conf with paths relative to /workspace/ai
- Add supervisor control scripts to arty.yml (start/stop/status/restart)
- All paths now use ../ to reference parent /workspace directory

arty.yml

@@ -103,6 +103,24 @@ envs:
 
 # Deployment scripts for RunPod instances
 scripts:
+  #
+  # Supervisor Control Scripts
+  #
+  services/supervisor/start: |
+    set -a
+    source .env
+    set +a
+    supervisord -c supervisord.conf
+
+  services/supervisor/stop: |
+    supervisorctl -c supervisord.conf shutdown
+
+  services/supervisor/status: |
+    supervisorctl -c supervisord.conf status
+
+  services/supervisor/restart: |
+    supervisorctl -c supervisord.conf restart all
+
   #
   # System Setup Scripts
   #