appview,lexicons: atprotate the mentions & references
Storing references parsed from the markdown body in atproto record and
DB. There can be lots of reference types considering the from/to types
so storing both as AT-URIs
Using `sql.Tx` more to combine multiple DB query to single recoverable
operation.
Note: Pulls don't have mentinos/references yet
Signed-off-by: Seongmin Lee <git@boltless.me>
authored by
boltless.me
and committed by