Fixed VS Code interface: using working app.py with enhanced UI

Dockerfile

@@ -27,7 +27,7 @@ WORKDIR /home/user
 RUN pip3 install requests
 
 # Copy VS Code web interface
-COPY app_vscode.py /home/user/app.py
+COPY app.py /home/user/app.py
 
 # Set environment variables
 ENV PORT=7860