corrections für https behind webproxy

app.py

@@ -39,6 +39,7 @@ from utils.cli import register_cli_commands
 from utils.middleware import setup_dev_mode_middleware, get_current_user, get_current_tenant
 from utils.helpers import get_request_context
 
+from werkzeug.middleware.proxy_fix import ProxyFix
 
 # Initialize extensions globally (will be bound to app in create_app)
 migrate = Migrate()
@@ -66,6 +67,12 @@ def create_app(config_class: Optional[type] = None) -> Flask:
     app = Flask(__name__)
     app.config.from_object(config_class or get_config_class())
     
+
+    # Vertraue 1 Reverse Proxy (NPM) für X-Forwarded-For, Proto, Host, Port
+    app.wsgi_app = ProxyFix(
+        app.wsgi_app, x_for=1, x_proto=1, x_host=1, x_port=1, x_prefix=1
+    )
+
     # Set up logging
     setup_logging(app)