fix: use gr.Textbox instead of gr.Code to avoid schema bug

app.py

@@ -127,7 +127,12 @@ with demo:
             submit_btn = gr.Button("🔍 Detect", variant="primary")
         
         with gr.Column():
-            output_display = gr.Code(label="Detection Results", language="json", lines=10)
+            output_display = gr.Textbox(
+                label="Detection Results", 
+                lines=15, 
+                max_lines=20,
+                show_copy_button=True
+            )
     
     gr.Markdown("""
     ---