Fix: Add YouTube bot detection bypass for HF deployment

Fix: Add missing heuristic mode to FastAPI /clips endpoint

Configure for Hugging Face deployment

Fix: Restore Flask and gunicorn in requirements.txt

Fix: Use correct model deepseek-ai/deepseek-v3.2

Enhance debug endpoint to show sub_url and parsing details

Add detailed subtitle logging to debug 0 transcript issue

Add debug endpoint and improved error logging

Fix: Add proxy support for subtitle downloads

Optimize AI processing: Parallel chunking for Nvidia and Gemini (5x concurrent)

Finalize project restructure: Clean root directory, verify backend API functionality

Restructure project: separate backend and frontend folders