fix(deploy): monkey-patch gradio_client schema parsing bug where boolean additionalProperties throws TypeError

app/services/plate_recognition.py

@@ -134,6 +134,21 @@ def run_pipeline_remote(*, image_bytes: bytes, filename: Optional[str] = None, c
         from gradio_client import Client, handle_file
     except ImportError:
         raise HTTPException(status_code=500, detail="gradio_client is not installed.")
+
+    # Monkey-patch gradio_client schema parsing bug where boolean additionalProperties throws TypeError
+    try:
+        import gradio_client.utils
+        _orig_parser = gradio_client.utils._json_schema_to_python_type
+        if not hasattr(gradio_client.utils, "_safe_parser_applied"):
+            def _safe_parser(schema, defs):
+                if isinstance(schema, bool) or not isinstance(schema, dict):
+                    return "Any"
+                return _orig_parser(schema, defs)
+            gradio_client.utils._json_schema_to_python_type = _safe_parser
+            gradio_client.utils._safe_parser_applied = True
+    except Exception:
+        pass
+
     with tempfile.NamedTemporaryFile(delete=False, suffix=".jpg") as tmp:
         tmp.write(image_bytes)
         tmp_path = tmp.name