fixing https updating app.js with window protocol

frontend/src/App.js

@@ -74,14 +74,17 @@ const getAPIURL = () => {
     return 'http://localhost:8000';
   }
   
+  // Get current protocol (http: or https:)
+  const protocol = window.location.protocol;
+  
   // When running in production, use the same host with the backend port
   // This works because we're exposing the backend port in docker-compose
   // If port is 7860, use the same port (Hugging Face scenario)
   const currentPort = window.location.port;
   if (currentPort === '7860') {
-    return `http://${window.location.hostname}:${currentPort}`;
+    return `${protocol}//${window.location.hostname}:${currentPort}`;
   } else {
-    return `http://${window.location.hostname}:8000`;
+    return `${protocol}//${window.location.hostname}:8000`;
   }
 };