Commit full-length compressed exports of both demucs stems

vocals.mp3 (narrator only) and no_vocals.mp3 (background/instrumental
only), 128kbps MP3, so both are viewable/playable directly in Gitea
without needing local playback or GPU-box access.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Y1oQ4h4WE4R9KRvMQLr5Ey

.gitignore

@@ -29,3 +29,7 @@ outputs/
 # Full-size source video — keep locally, commit only compressed derivatives
 media-files/video/*.mp4
 !media-files/video/*-480p.mp4
+
+# Compressed exports of demucs stems — keep committed for review without
+# local playback (the raw separated/*.wav stems stay local, per *.wav above)
+!demucs/*.mp3

demucs/README.md

@@ -17,6 +17,10 @@ Took ~12s for 11 minutes of audio. Outputs `vocals.wav` and `no_vocals.wav` (44.
 duration matches source) under `separated/htdemucs/<track-name>/` — gitignored, left on the GPU
 box at `/root/projects/audio-demo/repo/demucs/separated/`.
 
+Full-length MP3 versions (128kbps, ~10MB each) are committed as `vocals.mp3` and
+`no_vocals.mp3` in this directory so both stems are reviewable directly from Gitea without
+needing local playback or GPU-box access.
+
 **Known gotcha:** demucs 4.1.0's package metadata doesn't declare `numpy` as a dependency even
 though `demucs/transformer.py` imports it directly — `pip install demucs` alone leaves the env
 broken (`ModuleNotFoundError: No module named 'numpy'` at runtime). Install `numpy` explicitly