-- Control-plane registry: tenant list + connection info (Modell C).
-- Core TEN-01 (siehe core-kanban).
CREATE TABLE tenants (
    id           UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    slug         TEXT NOT NULL UNIQUE,
    name         TEXT NOT NULL,
    db_dsn       TEXT NOT NULL,
    status       TEXT NOT NULL DEFAULT 'active',
    created_at   TIMESTAMPTZ NOT NULL DEFAULT now()
);