Monkey-patch starlette TemplateResponse for gradio 4.44.0 compat

The HF Spaces container installs starlette 1.0+ which removed auto-detection
for the deprecated TemplateResponse(name_str, context_dict) positional call.
gradio 4.44.0 still uses that old style; the context dict ends up assigned to
the 'name' parameter and jinja2's template cache crashes with 'unhashable type:
dict'. Patch Jinja2Templates.TemplateResponse before importing gradio so
old-style calls are translated to the new (request, name, context) signature.

app.py

@@ -1,4 +1,22 @@
 import os
+
+# Starlette >= 1.0 removed the deprecated positional TemplateResponse(name, context)
+# call style. gradio 4.44.0 still calls templates.TemplateResponse(template_str,
+# context_dict), which then hits the new-only signature TemplateResponse(request,
+# name, ...) and passes the context dict as `name`, exploding inside jinja2's cache
+# with "unhashable type: 'dict'". Translate old-style calls before gradio imports.
+import starlette.templating as _st_templating
+_orig_template_response = _st_templating.Jinja2Templates.TemplateResponse
+def _compat_template_response(self, *args, **kwargs):
+    if args and isinstance(args[0], str):
+        name = args[0]
+        context = args[1] if len(args) > 1 else kwargs.pop("context", None) or {}
+        request = context.get("request") if isinstance(context, dict) else None
+        if request is not None:
+            return _orig_template_response(self, request, name, context, *args[2:], **kwargs)
+    return _orig_template_response(self, *args, **kwargs)
+_st_templating.Jinja2Templates.TemplateResponse = _compat_template_response
+
 import torch
 import torchaudio
 import gradio as gr