List PIX transaction limits
Lists the PIX limit rows that exist for the account named by account_id. Each row is a (transactionType, periodType, limitType) tuple plus an amount in centavos: periodType is DAILY, NIGHTLY or MONTHLY; limitType is TRANSACTION, the cap on a single payment, or PERIOD, the cap on everything inside the window; transactionType is always PIX.
No endpoint in this API creates a limit row. Four of them - PERIOD and TRANSACTION for DAILY and NIGHTLY, at a deployment-configured default of 30000 reais - are seeded lazily the first time POST /v1/transactions runs the limit check for the account, and a MONTHLY row is never created by the service at all. Until that first payment attempt this route answers 200 with an empty data array rather than a 404, and PATCH /v1/limits has no row to change. An account_id the CRM cannot resolve is 404 PIX-2016.

