Moved ytsage_ffmpeg.py to src/core and refactored for improved logging and error handling. Added SHA-256 verification for downloads, updated FFmpeg URLs to 7.1.1, and implemented fallback extraction methods. Introduced get_ffmpeg_path utility and replaced print statements with logger calls for better integration.
Replaced print statements with logger calls for improved logging. Added support for sponsorblock categories and chapter embedding. Updated imports to use relative paths and improved command building logic for yt-dlp.