TON errors

General authentication, tier, and rate-limit errors are in the global error reference.

• -32602, beyond_retention, oldest N: the requested seqno is below the selected liteserver's measured retention floor. Choose seqno >= N or omit it.
• Liteserver messages such as not in db, block not in db, and state not in db are classified as the same retention boundary when they accompany an old block request; they are not rewritten to an empty result.
• -32601 is returned for sendBoc and every other method outside the 13-method read-only catalog.
• -32602 also covers malformed named parameters, including an array where the TON surface requires a params object.

A retention response is a measured boundary, not an internal failure. Retrying the same historical request against pruned nodes cannot make it available.