Fix gradio 4.44.0 crash: catch TypeError instead of modifying schema dicts

The previous monkey-patch modified schema dicts (deleting additionalProperties),
which leaked into jinja2's LRU cache causing "unhashable type: dict" errors.
New approach: wrap get_type and _json_schema_to_python_type with try/except
TypeError, plus add safety net on Blocks.get_api_info.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app.py

@@ -11,10 +11,13 @@ import shutil
 
 import gradio as gr
 
-# ── Monkey-patch gradio_client bug with additionalProperties ──────────────
-# Fix TypeError: argument of type 'bool' is not iterable in get_type()
-# This bug exists in gradio 4.44.0's gradio_client when additionalProperties
-# is a bool (True) instead of a dict schema.
+# ── Monkey-patch gradio 4.44.0 bugs ─────────────────────────────────────────
+# Bug 1: gradio_client/utils.py get_type() crashes with TypeError when
+#         schema is a bool (additionalProperties: true in JSON schema).
+# Bug 2: _json_schema_to_python_type() also crashes on bool schemas.
+# Strategy: Wrap both functions to catch TypeError — do NOT modify any schema
+#           dicts, as that leaks into jinja2's LRU cache and causes
+#           "unhashable type: dict" errors in template rendering.
 try:
     import gradio_client.utils as _gc_utils
 
@@ -23,7 +26,10 @@ try:
     def _patched_get_type(schema):
         if isinstance(schema, bool):
             return "Any"
-        return _original_get_type(schema)
+        try:
+            return _original_get_type(schema)
+        except TypeError:
+            return "Any"
 
     _gc_utils.get_type = _patched_get_type
 
@@ -32,17 +38,30 @@ try:
     def _patched_json_schema(schema, defs=None):
         if isinstance(schema, bool):
             return "Any"
-        if isinstance(schema, dict) and "additionalProperties" in schema:
-            ap = schema["additionalProperties"]
-            if isinstance(ap, bool):
-                schema = dict(schema)
-                del schema["additionalProperties"]
-        return _original_json_schema(schema, defs)
+        try:
+            return _original_json_schema(schema, defs)
+        except TypeError:
+            return "Any"
 
     _gc_utils._json_schema_to_python_type = _patched_json_schema
 except Exception:
     pass
 
+# Safety net: patch Blocks.get_api_info to prevent any residual TypeError
+# from crashing the entire app during health checks or page loads.
+try:
+    _orig_get_api_info = gr.Blocks.get_api_info
+
+    def _safe_get_api_info(self, *args, **kwargs):
+        try:
+            return _orig_get_api_info(self, *args, **kwargs)
+        except TypeError:
+            return {"named_endpoints": {}, "unnamed_endpoints": {}}
+
+    gr.Blocks.get_api_info = _safe_get_api_info
+except Exception:
+    pass
+
 # Setup logging
 logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
 logger = logging.getLogger(__name__)