fix: resolve real marketplace service issues

✅ Fixed Real Marketplace Service
- Created real_marketplace_launcher.py to avoid uvicorn workers warning
- Fixed read-only file system issue by creating log directory
- Updated systemd service to use launcher script
- Real marketplace now operational on port 8009

✅ Marketplace Services Summary
- Port 8002: GPU Resource Marketplace (GPU listings and bids)
- Port 8009: AI Services Marketplace (OpenClaw agents + Ollama)
- Both services now operational with distinct purposes

🚀 Two distinct marketplace services are now working correctly!

production/services/real_marketplace_launcher.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+"""
+Real Marketplace Service Launcher
+"""
+
+import os
+import sys
+
+# Add production services to path
+sys.path.insert(0, '/opt/aitbc/production/services')
+
+# Import and run the real marketplace app
+from real_marketplace import app
+import uvicorn
+
+# Run the app
+uvicorn.run(
+    app,
+    host='0.0.0.0',
+    port=int(os.getenv('REAL_MARKETPLACE_PORT', 8009)),
+    log_level='info'
+)

systemd/aitbc-real-marketplace.service

@@ -14,7 +14,7 @@ Environment=PYTHONPATH=/opt/aitbc/production/services
 EnvironmentFile=/opt/aitbc/production/.env
 
 # Real marketplace execution
-ExecStart=/opt/aitbc/venv/bin/python /opt/aitbc/production/services/real_marketplace.py
+ExecStart=/opt/aitbc/venv/bin/python /opt/aitbc/production/services/real_marketplace_launcher.py
 ExecReload=/bin/kill -HUP $MAINPID
 KillMode=mixed
 TimeoutStopSec=10