fix: upgrade to Gradio 5.29.0 to resolve Starlette/Jinja2 compat breaks

Gradio 4.44.1 is broken with current HF Space deps:
- TemplateResponse(name, context) vs new (request, name, context) → TypeError: unhashable type: 'dict'
- gradio_client additionalProperties bool crash (also fixed natively in gradio-client 1.x)

Gradio 5.29.0 ships gradio-client 1.x which has both fixes built-in.
Monkey-patches are kept but made conditional (hasattr) so they are no-ops on 5.x.

README.md

@@ -4,7 +4,7 @@ emoji: 🎙️
 colorFrom: blue
 colorTo: green
 sdk: gradio
-sdk_version: 4.44.1
+sdk_version: 5.29.0
 app_file: app.py
 pinned: false
 python_version: 3.10.13

app.py

@@ -1,25 +1,25 @@
 import gradio as gr
 
-# gradio_client crashes when JSON Schema contains `additionalProperties: true`
-# (a boolean, not a dict). Two code paths hit this:
-#   1. get_type() does `if "const" in schema` → TypeError on bool
-#   2. _json_schema_to_python_type() → APIInfoParseError("Cannot parse schema True")
-# Patch both to treat non-dict schemas as "Any"/"unknown".
+# gradio_client <1.x crashes when JSON Schema has `additionalProperties: true`
+# (a boolean). Fixed in gradio-client 1.x (Gradio 5+), but patch defensively
+# for older installs. Both code paths that hit the bug are guarded.
 import gradio_client.utils as _gcu
 
-_orig_get_type = _gcu.get_type
-def _safe_get_type(schema):
-    if not isinstance(schema, dict):
-        return "unknown"
-    return _orig_get_type(schema)
-_gcu.get_type = _safe_get_type
-
-_orig_j2p = _gcu._json_schema_to_python_type
-def _safe_j2p(schema, defs=None):
-    if not isinstance(schema, dict):
-        return "Any"
-    return _orig_j2p(schema, defs)
-_gcu._json_schema_to_python_type = _safe_j2p
+if hasattr(_gcu, "get_type"):
+    _orig_get_type = _gcu.get_type
+    def _safe_get_type(schema):
+        if not isinstance(schema, dict):
+            return "unknown"
+        return _orig_get_type(schema)
+    _gcu.get_type = _safe_get_type
+
+if hasattr(_gcu, "_json_schema_to_python_type"):
+    _orig_j2p = _gcu._json_schema_to_python_type
+    def _safe_j2p(schema, defs=None):
+        if not isinstance(schema, dict):
+            return "Any"
+        return _orig_j2p(schema, defs)
+    _gcu._json_schema_to_python_type = _safe_j2p
 
 import os
 import time