🔧 Fix Gradio version: Update to 4.44.0

✅ Changed from invalid '4.0' to valid '4.44.0'
✅ Compatible with requirements.txt (gradio>=4.0.0)
✅ Resolves 'Gradio version does not exist' configuration error
✅ Ensures proper HF Spaces deployment

README.md

@@ -4,7 +4,7 @@ emoji: 🚀
 colorFrom: indigo
 colorTo: purple
 sdk: gradio
-sdk_version: "4.0"
+sdk_version: "4.44.0"
 app_file: app.py
 pinned: false
 hf_oauth: true