Add layout geometry area constraint to prevent giant font sizes in wrapped/vertical text boxes

Tighten horizontal distance and vertical overlap thresholds in paragraph merging

Fix vertical paragraph merging cascading issue and increase mask dilation

fix: integrate Simplified-to-Traditional Chinese conversion and standardize font sizes

fix: disable CORS and XSRF protection for Hugging Face Spaces compatibility

chore: remove Vercel frontend and FastAPI backend files

fix: update LaMa ONNX model download URLs to working paths

feat: restructure for Hugging Face Spaces deployment