-- CreateEnum
CREATE TYPE "SignupMode" AS ENUM ('OPEN', 'APPROVED', 'CONFIRMED', 'CLOSED');

-- CreateTable
-- Single-row settings table; the app always reads/writes the row at id
-- 'singleton'. No row is created here -- absence of a row means "use
-- defaults" (see getSignupMode in lib/settings.ts), so sites upgrading
-- into this migration keep today's OPEN behavior without a backfill.
CREATE TABLE "SiteSettings" (
    "id" TEXT NOT NULL DEFAULT 'singleton',
    "signupMode" "SignupMode" NOT NULL DEFAULT 'OPEN',
    "updatedAt" TIMESTAMP(3) NOT NULL,

    CONSTRAINT "SiteSettings_pkey" PRIMARY KEY ("id")
);