-- CreateEnum
CREATE TYPE "Role" AS ENUM ('ADMIN', 'USER', 'PENDING');

-- AlterTable
ALTER TABLE "User" ADD COLUMN "role" "Role" NOT NULL DEFAULT 'USER';

-- Backfill: on installs that already have users, the earliest-created
-- account becomes ADMIN -- consistent with "the first person to sign up
-- is the administrator" for accounts that predate this migration.
UPDATE "User" SET "role" = 'ADMIN'
WHERE "id" = (SELECT "id" FROM "User" ORDER BY "createdAt" ASC LIMIT 1);