expect(isBillingErrorMessage(raw)).toBe(true);

});

it("classifies prose-only subscription plan access denials as billing", () => {

const raw =

"FailoverError: Your current subscription plan does not yet include access to GLM-5V-Turbo";

expect(isBillingErrorMessage(raw)).toBe(true);

});

it("classifies Z.ai 1311 with spaces as billing", () => {

const raw = '{"code": 1311, "message": "model not on plan"}';

expect(isBillingErrorMessage(raw)).toBe(true);

"账户已欠费",

// Z.ai: error 1311 = model not included in current subscription plan (#48988)

ZAI_BILLING_CODE_1311_RE,

/\bcurrent\s+subscription\s+plan\b.*\b(?:does\s+not|doesn't|not)\b.*\binclude\s+access\b/i,

/\bmodel\b.*\bnot\s+available\b.*\bcurrent\s+plan\b/i,

],

authPermanent: HIGH_CONFIDENCE_AUTH_PERMANENT_PATTERNS,

auth: [