I like this change. My only concern is renaming this will break existing logging scripts that specify logging on "db" explicitly.

Two things:

1. I tested it and using unrecognized debug categories only gives a warning, so operators will not be aware until they realize that logs are missing.
2. We could provide a legacy "db" category which warns as deprecated. Call out that it is going away in the release notes. Then remove it months later. This may be more overhead than it's worth, but I'd like to know your thoughts.

👍