Consolidate service scripts into apps directories

- Move blockchain scripts to apps/blockchain-node/scripts/
- Move marketplace scripts to apps/marketplace/scripts/
- Move agent daemon to apps/agent-coordinator/scripts/
- Move monitor to apps/monitor/
- Update systemd service files to point to new locations
- Update internal path references in moved scripts
- Remove empty /opt/aitbc/services directory

apps/marketplace/scripts/gpu_marketplace_launcher.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+"""
+GPU Marketplace Launcher for AITBC Production
+"""
+
+import os
+import sys
+import subprocess
+import logging
+from pathlib import Path
+
+# Configure logging
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+)
+logger = logging.getLogger(__name__)
+
+def main():
+    """Main GPU marketplace launcher function"""
+    logger.info("Starting AITBC GPU Marketplace Launcher")
+    
+    try:
+        # Set environment variables
+        os.environ.setdefault('PYTHONPATH', '/opt/aitbc/apps/marketplace/scripts:/opt/aitbc/apps/marketplace/src:/opt/aitbc/apps/coordinator-api/src')
+        
+        # Try to run the GPU marketplace service
+        logger.info("Launching GPU marketplace service")
+        
+        # Check if the main marketplace service exists
+        marketplace_path = '/opt/aitbc/apps/marketplace/scripts/marketplace.py'
+        if os.path.exists(marketplace_path):
+            logger.info("Found marketplace service, launching...")
+            subprocess.run([
+                '/opt/aitbc/venv/bin/python',
+                marketplace_path
+            ], check=True)
+        else:
+            logger.error(f"Marketplace service not found at {marketplace_path}")
+            # Fallback to simple service
+            fallback_service()
+            
+    except subprocess.CalledProcessError as e:
+        logger.error(f"GPU marketplace service failed with exit code {e.returncode}: {e}")
+        logger.info("Starting fallback GPU marketplace service")
+        fallback_service()
+    except (FileNotFoundError, PermissionError) as e:
+        logger.error(f"Cannot launch GPU marketplace service: {type(e).__name__}: {e}")
+        logger.info("Starting fallback GPU marketplace service")
+        fallback_service()
+    except Exception as e:
+        logger.error(f"Unexpected error launching GPU marketplace: {type(e).__name__}: {e}")
+        logger.info("Starting fallback GPU marketplace service")
+        fallback_service()
+
+def fallback_service():
+    """Fallback GPU marketplace service"""
+    logger.info("Starting fallback GPU marketplace service")
+    
+    try:
+        # Simple GPU marketplace heartbeat
+        import time
+        
+        while True:
+            logger.info("GPU Marketplace service heartbeat - active")
+            time.sleep(30)
+            
+    except KeyboardInterrupt:
+        logger.info("GPU Marketplace service stopped by user")
+    except (OSError, IOError) as e:
+        logger.error(f"System error in fallback service: {type(e).__name__}: {e}")
+        time.sleep(5)
+    except Exception as e:
+        logger.error(f"Unexpected error in fallback service: {type(e).__name__}: {e}")
+        time.sleep(5)
+
+if __name__ == "__main__":
+    main()