add lib

app.py

@@ -7,6 +7,7 @@ import time
 import requests
 from PIL import Image
 import gradio as gr
+import re
 
 
 # =========================
@@ -216,7 +217,7 @@ def _process_api_response_page(result: Dict[str, Any]) -> Tuple[str, str, str]:
         output_html = f'<img src="{output_image_url}" alt="Detection Visualization">'
     else:
         print("Warning: No visualization image URL found in the API response.")
-        
+
     md_text = _escape_inequalities_in_math(md_text)
     return md_text or "(Empty result)", output_html, md_text