fix: gradio 5.23 + drop HfFolder dep

app.py

@@ -120,11 +120,12 @@ with gr.Blocks(
         with gr.Column(scale=1):
             vid = gr.Video(label="Upload Video", height=280)
             btn = gr.Button("🔍 Analyze", variant="primary", size="lg")
-            gr.Examples(
-                examples=[["test_assets/real_sample.mp4"], ["test_assets/fake_sample.mp4"]],
-                inputs=[vid],
-                label="Try sample videos",
-            ) if os.path.exists("test_assets/real_sample.mp4") else None
+            if os.path.exists("test_assets/real_sample.mp4"):
+                gr.Examples(
+                    examples=[["test_assets/real_sample.mp4"], ["test_assets/fake_sample.mp4"]],
+                    inputs=[vid],
+                    label="Try sample videos",
+                )
 
         with gr.Column(scale=2):
             verdict_out = gr.Markdown(label="Verdict", elem_classes=["verdict-box"])