Melbar 8aa6fe8323 Fix forehead_touch action group + always-fresh cutter assets ...

1. Action-group classifier conflated object-touches and person-touches.
   "man touches the red door with a small object" was being tagged as
   forehead_touch because "touch" was in the forehead_touch needles set.
   That made the realign pass yank Beat 16 from scene 451 (correct: man
   painting red door, IV stand) over to scene 623 (woman/man in bed) —
   a totally wrong shot at score 0.344.

   Fix: removed generic "touch*" verbs from forehead_touch's needle set.
   forehead_touch is now added in _semantic_action_groups() only when a
   touch verb is paired with an explicit body-part target (forehead,
   face, cheek, head, hand, ...) and not paired with an object target
   (door, handle, brush, tool, lock, ...).

   Effect on Beat 16 after `match --beat 16 --vision`:
   scene 623 in=5476.28 score=0.344 -> scene 451 in=3912.48 score=0.626.

2. Cutter-report stills/clips were keyed by source-video mtime, so a
   match-position change without a video change served stale frames from
   the previous match. Dropped the mtime cache; both extractors now
   render fresh every time. Slower (~minute per full regen) but correct.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-05-05 05:23:24 +02:00

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