Upgrade to Gradio 5.x to fix api-schema startup crash

gradio 4.44's bundled gradio_client raises "TypeError: argument of type
'bool' is not iterable" while building api_info at startup, which made
Gradio believe localhost was unreachable and abort with a share=True
ValueError. Gradio 5.x fixes the boolean-schema handling. Also pass
show_api=False defensively.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app.py

@@ -110,4 +110,8 @@ def build_ui() -> gr.Blocks:
 
 
 if __name__ == "__main__":
-    build_ui().queue().launch(server_name="0.0.0.0", server_port=7860)
+    build_ui().queue().launch(
+        server_name="0.0.0.0",
+        server_port=7860,
+        show_api=False,  # avoid API-schema generation edge cases
+    )

requirements.txt

@@ -1,6 +1,7 @@
-gradio==4.44.1
-# gradio 4.44 imports HfFolder, removed in huggingface_hub 1.0 — keep <1.0 (still has Inference Providers).
-huggingface_hub>=0.28.0,<1.0
+# Gradio 5.x fixes the gradio_client "bool is not iterable" api-schema crash present in 4.44.
+gradio>=5.6,<6
+# Keep huggingface_hub <1.0: 0.x InferenceClient (Inference Providers) is what the pipeline targets.
+huggingface_hub>=0.28.1,<1.0
 requests>=2.32.0
 trafilatura>=1.12.0
 python-docx>=1.1.2