craft-audio: review fixes, round 19 (#442)

CI: the package repair between ffmpeg install tries gets a time limit
too, so a blocked configure script cannot use up the job's time.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.github/workflows/audio.yml

@@ -107,7 +107,7 @@ jobs:
             for attempt in 1 2 3; do
               timeout -k 10 180 sudo sh -c 'apt-get update -qq && apt-get install -y -qq --no-install-recommends ffmpeg' && return 0
               echo "apt: attempt $attempt failed with exit code $?"
-              sudo dpkg --configure -a || true
+              timeout -k 10 60 sudo dpkg --configure -a || true
             done
             return 1
           }