update wsgi

app.py

@@ -105,6 +105,9 @@ def initialize_system():
         "congestion_risk": congestion_risk
     }
 
+@app.route("/")
+def home():
+    return "Flask is running!"
 
 @app.route('/api/status', methods=['GET'])
 def status():

wsgi.py

@@ -1,18 +1,10 @@
 import os
 import sys
 
+# Ensure required file exists
 if not os.path.exists('route_optimizer.py'):
     print("Error: route_optimizer.py file not found!")
-    print("Please save your original code as 'route_optimizer.py' before running this application.")
     sys.exit(1)
-import app
 
-if __name__ == '__main__':
-    print("Starting Route Optimization API Server...")
-    
-    from app import app, initialize_system
-    print("Initializing route optimization system...")
-    system = initialize_system()
-    print(f"System initialized with {len(system['G'].nodes())} nodes and {len(system['G'].edges())} edges")
-    
-    app.run()
+# Import only the Flask app instance (Gunicorn will use this)
+from app import app