Patch Gradio schema crash: handle boolean additionalProperties

gradio_client.utils._json_schema_to_python_type crashes when
additionalProperties is True (boolean) instead of a dict — complex
gr.State types trigger this. Patch returns "Any" for non-dict input.

Also removes the ineffective GRADIO_SSR_MODE env var workaround.

app.py

@@ -22,8 +22,16 @@ from datetime import datetime, timezone
 from pathlib import Path
 
 import gradio as gr
+import gradio_client.utils as _gc_utils
 import pandas as pd
 
+_orig_json_schema_to_python_type = _gc_utils._json_schema_to_python_type
+def _patched_json_schema_to_python_type(schema, defs=None):
+    if not isinstance(schema, dict):
+        return "Any"
+    return _orig_json_schema_to_python_type(schema, defs)
+_gc_utils._json_schema_to_python_type = _patched_json_schema_to_python_type
+
 from evaluate_runner import DIFFICULTY_MULTIPLIER, DEFAULT_SERVER, compute_composite_score, compute_game_metrics
 
 logger = logging.getLogger(__name__)
@@ -1777,8 +1785,6 @@ def build_app() -> gr.Blocks:
     return app
 
 
-os.environ["GRADIO_SSR_MODE"] = "false"
-
 if __name__ == "__main__":
     app = build_app()
     app.launch(