templates/ ships with the repo (two-hander-golden-hour, record-store,
empty-stage), GET /templates + /templates/{name} behind the same slug and
path-traversal guards as /scenes; presentation metadata rides in a template
key that validate_scene ignores and toJSON drops, so loading then saving
yields plain scene JSON.
Test group asserts the three list in order, round-trip, traversal/unknown
rejected, write verbs refused, and every template passes validate_scene with
every referenced asset present on disk - the check that stops a rotten
template shipping. 10 groups green.
Verified live: two-hander loads 7 entities, 8s, both performers animating,
cut fires cam1 to cam2 at 4.5s; other two load clean.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>