Fix server config for HuggingFace Spaces

app_retrieval_cached.py

@@ -394,9 +394,17 @@ with gr.Blocks(title="Medical Document Retrieval (Cached)") as demo:
     """)
 
 print("\nOpening web interface...")
-print("   Local access: http://127.0.0.1:7863")
 print("=" * 70)
 
 if __name__ == "__main__":
-    # Note: share=True only works locally, not on HuggingFace Spaces
-    demo.launch(server_name="127.0.0.1", server_port=7863)
+    # Auto-detect environment: HuggingFace Spaces vs local
+    import os
+    is_spaces = os.getenv("SPACE_ID") is not None
+    
+    if is_spaces:
+        # HuggingFace Spaces: listen on all interfaces, default port
+        demo.launch(server_name="0.0.0.0", server_port=7860)
+    else:
+        # Local: standard config
+        print("   Local access: http://127.0.0.1:7863")
+        demo.launch(server_name="127.0.0.1", server_port=7863)