gitignore: gig video and rendered masters stay out of the repo

.gitignore

@@ -81,3 +81,9 @@ visuals/slop/bakeoff/
 # Generated by tools/gen_setlist.py from the canonical gig records — computed,
 # never hand-maintained, so it must not drift in git.
 armada/setlist_recent.txt
+
+# Gig captures: screen/cam recordings, rendered masters and source video.
+# Hundreds of MB each, regenerable (rec-up.sh, take-master.py) or kept in
+# the Ardour session; the repo holds the scores and the tooling, not the media.
+live/**/*.mp4
+live/algolia/devcon26/master/