fixes: web interface shutdown

main.py

@@ -6,6 +6,7 @@ Modular architecture with webhook processing and intelligent date handling
 import os
 import sys
 import signal
+import asyncio
 from pathlib import Path
 from datetime import datetime, timezone
 
@@ -34,6 +35,8 @@ from webhooks.webhook_batcher import WebhookBatcher
 # Import API routes
 from api.routes import register_routes
 
+# Global shutdown event for graceful shutdown coordination
+shutdown_event = asyncio.Event()
 
 def get_version() -> str:
     """Get application version"""
@@ -107,7 +110,8 @@ def initialize_components():
         "batcher": batcher,
         "start_time": start_time,
         "config": config,
-        "version": get_version()
+        "version": get_version(),
+        "shutdown_event": shutdown_event
     }
 
 
@@ -115,6 +119,9 @@ def signal_handler(signum, frame):
     """Handle shutdown signals gracefully"""
     _log("INFO", f"Received signal {signum}, shutting down gracefully...")
     
+    # Set shutdown event to notify background tasks
+    shutdown_event.set()
+    
     # Get the global dependencies if they exist
     if hasattr(signal_handler, 'dependencies') and signal_handler.dependencies:
         deps = signal_handler.dependencies