Fix: Downgrade to Gradio 4.19.2 - pre-schema-bug version

- Gradio 4.36+ has persistent DataFrame schema parsing bug
- Gradio 4.19.2 is older but stable, no metadata schema issues
- Match huggingface_hub 0.20.3 for full compatibility
- This version is proven to work on HF Spaces

README.md

@@ -4,7 +4,7 @@ emoji: "\U0001F4E3"
 colorFrom: blue
 colorTo: green
 sdk: gradio
-sdk_version: "4.36.1"
+sdk_version: "4.19.2"
 app_file: app.py
 pinned: false
 ---

requirements.txt

@@ -1,7 +1,7 @@
 pyannote.audio
 torch==2.1.2
 torchaudio==2.1.2
-gradio==4.36.1
-huggingface_hub==0.23.4
+gradio==4.19.2
+huggingface_hub==0.20.3
 yt-dlp
 numpy<2.0