Update app.py

[fix] bind model_selector for box prompt

app.py

@@ -277,7 +277,7 @@ with gr.Blocks(title="交互式图像组分割系统") as demo:
             
             mask_btn.click(
                 generate_mask,
-                inputs=[img_input, coord_store],
+                inputs=[model_selector, img_input, coord_store],
                 outputs=mask_output
             )