feat: editor-v2 S1 — EDL schema, strict validation, /video/edl API, edl_projects store
apps/api/src/media-control/edl.ts: the EdlProject schema (closed enums,
integer ms, 3dB steps, <=50 items, <=15 min, filtergraph-metacharacter
blocklist on card text) + validateEdlProject — the mirror-assert owner for
the worker's edl-plan port. 043_edl_projects: RLS tenant table. EdlController:
POST /video/edl, PATCH autosave, GET (project + latest assemble job),
POST :id/render (queues kind 'assemble' with the validated project).
Tests 130 passing across media-control.
glass beadian
d8de9f5d82