stiegerc

feat: Introduce msg_limit for application subnets in payload builder

2

The `begin` of a stream slice we induct is used for garbage collecting signals. Therefore if we want at most 50k signals in the reverse stream, we have to make...

This is a first step towards phasing out old certification versions. The choice of `V15` for `MIN_SUPPORTED_CERTIFICATION_VERSION` is arbitrary and up for debate. Following this PR would be another PR...