Enhance gitignore for video production artifacts

- Ignore all common video formats (mp4, avi, mov, webm, etc.)
- Ignore audio files (mp3, wav, aac, flac, etc.)
- Ignore generated images (jpg, png, gif, etc.)
- Ignore FFmpeg and MoviePy logs/cache
- Protect against committing sensitive media files

.gitignore

@@ -67,9 +67,39 @@ venv.bak/
 *.mov
 *.webm
 *.mkv
+*.flv
+*.m4v
+*.3gp
 @artifacts/
 temp_videos/
+temp_audio/
 output_videos/
+output_audio/
+
+# Audio files
+*.mp3
+*.wav
+*.aac
+*.flac
+*.ogg
+*.m4a
+*.wma
+
+# Image files (generated)
+*.jpg
+*.jpeg
+*.png
+*.gif
+*.bmp
+*.tiff
+*.webp
+
+# FFmpeg logs
+ffmpeg*.log
+ffprobe*.log
+
+# MoviePy cache
+.moviepy/
 
 # OS
 .DS_Store