Permissionlessly folds accumulator-delivered T at the wrapper address into
stored account balance. The per-coin timestamp is latched before reading the
accumulator, preventing duplicate withdrawal and same-timestamp double counting
even when no funds are available. Only the wrapper UID can authenticate the
address-balance withdrawal; value leaving the account still requires a mutable
borrow through Auth.
Permissionlessly folds accumulator-delivered
Tat the wrapper address into stored account balance. The per-coin timestamp is latched before reading the accumulator, preventing duplicate withdrawal and same-timestamp double counting even when no funds are available. Only the wrapper UID can authenticate the address-balance withdrawal; value leaving the account still requires a mutable borrow throughAuth.