Log messages from leveldb and libevent libraries in the severity+level based log format introduced in [[https://github.com/bitcoin/bitcoin/pull/24464 | core#24464]].
> logging: Unconditionally log levels >= WARN
>
> Messages with level `WARN` or higher should be logged even when
> the category is not provided with `-debug=`, to make sure important
> warnings are not lost.
https://github.com/bitcoin/bitcoin/pull/25202/commits/bd971bffb02c7b06aac9a479f7e5ed8f71de2bec
> http: Use severity-based logging for messages from libevent
>
> Map libevent's severity to our own severity level for logging.
https://github.com/bitcoin/bitcoin/pull/25202/commits/18ec120bb9e1fc9d27d2419da4c580bd3cde7e86
> leveldb: Log messages from leveldb with category and debug level
https://github.com/bitcoin/bitcoin/pull/25202/commits/ce920713bf0810614c2c0c994511b50d4f660bce
> refactor: Change LogPrintLevel order to category, severity
>
> This is more consistent with the other functions, as well as with the
> logging output itself. If we want to make this change, we should do it
> before it's all over the place.
https://github.com/bitcoin/bitcoin/pull/25202/commits/c4e77177276ea2b79c4675cb2678ee2cc757b743
This is a backport of [[https://github.com/bitcoin/bitcoin/pull/25202 | core#25202]]