Take a look at https://github.com/code-423n4/2024-08-wildcat/blob/fe746cc0fbedc4447a981a50e6ba4c95f98b9fe1/src/types/RoleProvider.sol#L37-L42
This function helps calculate the expiry for a credential granted at timestamp by provider, this is done by adding its time-to-live to the timestamp and maxing out at the max uint32, indicating indefinite access.
Issue however is that protocol tries to implement this to have indefinite access with uint32.max, but this doesnt really mean infinite access, considering there is a definitive end to the expiry, see https://github.com/code-423n4/2024-08-wildcat/blob/fe746cc0fbedc4447a981a50e6ba4c95f98b9fe1/src/libraries/MathUtils.sol#L70-L77
This would mean that in a weird low likelihood case that we want signatures over the timestamp of 4294967295 then it is not possible, due to the hardcoded implementation of return timestamp.satAdd(provider.timeToLive(), type(uint32).max).
QA, protocol still functions properly for a while since duration to uint32.max is still long.
Because in that case credentials can only be expired since no timestamp is considered after that, see https://github.com/code-423n4/2024-08-wildcat/blob/fe746cc0fbedc4447a981a50e6ba4c95f98b9fe1/src/types/LenderStatus.sol#L29-L35
