-- Admin takedown for policy-violating episodes.
-- Purely additive: two nullable columns + one index. No backfill required —
-- NULL means "not moderated", which is the correct state for every existing row.
ALTER TABLE "episode" ADD COLUMN "moderatedAt" TIMESTAMP(3);
ALTER TABLE "episode" ADD COLUMN "moderatedBy" TEXT;

CREATE INDEX "episode_moderatedAt_idx" ON "episode"("moderatedAt");