Patch Gradio schema parsing on startup

app.py

@@ -2,11 +2,33 @@ import gradio as gr
 from PIL import Image, ImageDraw
 import tempfile
 import json
-import os
-import requests
-
-# Roboflow API configuration
-ROBOFLOW_API_KEY = os.getenv("ROBOFLOW_API_KEY")
+import os
+import requests
+from gradio_client import utils as gradio_client_utils
+
+
+_original_json_schema_to_python_type = gradio_client_utils._json_schema_to_python_type
+
+
+def _safe_json_schema_to_python_type(schema, defs=None):
+    """Compatibility patch for Gradio 4.44 / gradio_client 1.3 schema parsing.
+
+    Some component schemas contain additionalProperties as a boolean. Older
+    gradio_client assumes that value is always a dict and crashes while building
+    API info during Space startup.
+    """
+    if isinstance(schema, bool):
+        return "Any"
+    if isinstance(schema, dict) and isinstance(schema.get("additionalProperties"), bool):
+        schema = dict(schema)
+        schema["additionalProperties"] = {}
+    return _original_json_schema_to_python_type(schema, defs)
+
+
+gradio_client_utils._json_schema_to_python_type = _safe_json_schema_to_python_type
+
+# Roboflow API configuration
+ROBOFLOW_API_KEY = os.getenv("ROBOFLOW_API_KEY")
 ROOM_MODEL = "room-segmentation-frntt/1"
 DOOR_WINDOW_MODEL = "door-detection-model/2"