Config gains DefaultLimit/MaxLimit/MaxOffset/MaxBatch/MaxPreloadDepth/MaxWriteRows/QueryTimeout/
ConfirmTTL. Reads are capped and the total COUNT is optional. Errors reach clients as
{code,message}; everything else is logged with a reference. Panics (handler and hooks) are
recovered without returning the panic value.
Guard() rejects unauthenticated callers (no guest/optional mode); Setup*/New* helpers take a
SecurityList and have explicit *Unauthenticated variants. Model rules now reach the security
hooks, create checks CanCreate (security.CheckModelCreateAllowed), create/update validate keys
against the model's writable columns, update sets only given keys (NULL allowed), update and
delete go through row security via a new BeforeScan hook, and the annotation tool is opt-in
(Config.EnableAnnotations) and runs BeforeHandle.
Hein