Update app.py

app.py

@@ -124,10 +124,19 @@ img_interface = gr.Interface(
     title="🎨 AI Image Question Answering"
 )
 
-demo = gr.TabbedInterface([doc_interface, img_interface], ["📄 Document QA", "🎨 Image QA"])
-
-app = gr.mount_gradio_app(app, demo, path="/")
-
+# Use Gradio Blocks (instead of TabbedInterface)
+with gr.Blocks() as demo:
+    gr.TabbedLayout(
+        [doc_interface, img_interface],
+        ["📄 Document QA", "🎨 Image QA"]
+    )
+
+# Mount Gradio to FastAPI properly
+from gradio.routes import App as GradioApp
+gradio_app = GradioApp.create_app(demo)
+app.mount("/", gradio_app)
+
+# Redirect FastAPI root to Gradio UI
 @app.get("/")
 def home():
     return RedirectResponse(url="/")