Fix file upload and numpy compatibility

Add api_name to click handler for Gradio 6.x compatibility

Fix Gradio compatibility: upgrade to v6.5+ and simplify type annotations

Downgrade Gradio to v4 and Numpy to <2 to fix schema generation error

Update YOLO confidence threshold to 0.7 and fix gallery height

Add YOLO weights and lower confidence threshold to 0.1

Remove Gemini functionality

Fix Gradio API schema generation by adding type hints

Remove API key note, fix YOLOv8 -> YOLOv11, use gemini-3-flash-preview

Initial commit: Squircle corners prediction app with Gemini and YOLO