Rebrand to Youtube Automation Anti Copyright, restructure layout, and fix script mood styles

fix: rewrite concatenate_clips with pure FFmpeg + set IMAGEIO_FFMPEG_EXE in Dockerfile

fix: rewrite apply_copyright_filters with pure FFmpeg - eliminate moviepy silent failures

fix: handle write_videofile failure in apply_copyright_filters + replace os.rename with shutil.copy2

fix: wrong kwarg in create_mixed_audio + cross-platform font paths for Linux Docker

fix: use fresh asyncio event loop to avoid gunicorn thread conflicts

🚀 Deploy Jigarzzz Premium Video Suite — FFmpeg + edge-tts + AI Video Generator