ALTER TABLE "ships" ADD COLUMN "from_deal" boolean DEFAULT false NOT NULL;--> statement-breakpoint
-- Backfill: each player's first ship came with the deal (CR-001), not from the Market.
UPDATE "ships" SET "from_deal" = true WHERE "id" IN (
  SELECT DISTINCT ON ("player_id") "id" FROM "ships" ORDER BY "player_id", "created_at", "id"
);