CREATE TABLE licenses (
    id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id   UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
    tier        VARCHAR(20) NOT NULL,
    features    JSONB NOT NULL DEFAULT '{}',
    limits      JSONB NOT NULL DEFAULT '{}',
    issued_at   TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    expires_at  TIMESTAMPTZ NOT NULL,
    revoked_at  TIMESTAMPTZ,
    token       TEXT NOT NULL,
    created_at  TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_licenses_tenant_id ON licenses (tenant_id);
CREATE INDEX idx_licenses_expires_at ON licenses (expires_at);