Changelog-Fixed: Fix compilation error on test target in UserSearchCacheTests
Signed-off-by: Daniel D‘Aquino <daniel@daquino.me>
Signed-off-by: William Casarin <jb55@jb55.com>
This is a non-behavioral change in preparation for the actual switchover
from Strings to Ids. The purpose of this kit is to reduce the size of
the switchover commit which is going to be very large.
Since we can't mutate NdbNotes, let's update the existing codebase to
generate and sign ids on NostrEvent constructions. This will allow us to
match NdbNote's constructor
