implement lazy database initialization and ensure database setup in routes

app/__init__.py

@@ -6,6 +6,13 @@ from config import Config
 db = SQLAlchemy()
 login_manager = LoginManager()
 
+def ensure_database():
+    """Initialize database tables if they don't exist"""
+    try:
+        db.create_all()
+    except Exception as e:
+        print(f"Database initialization error: {e}")
+
 def create_app():
     app = Flask(__name__)
     app.config.from_object(Config)
@@ -24,8 +31,4 @@ def create_app():
     from app.routes import bp as main_bp
     app.register_blueprint(main_bp)
 
-    # Initialize database tables
-    with app.app_context():
-        db.create_all()
-
     return app