Updates style of output code, but should have no behavioral or API
impact.

document oauth ClientConfig.SetClientSecret

Relay is not starting because initial-seq-number is always 0, resulting
from typecast from int to int64 fails. Changed flag type of
initial-seq-number fom int to Int64.

default-account-limit and new-hosts-per-day-limit had the same issue

fixes #1176

these are some small changes *before* getting in a refactor of the
lexgen tool.

This is to get things sycnhronized with upstream `atproto` repo while
preparing for lexgen workflow updates.

Small fix to the SQLite carstore -- the first record in the cache will
have ID 0, there's no reason to ignore it. Naturally, this case happens
a lot in testing and stuff 'cause the first attempt to get a revision on
an empty database will fail

- switches a bunch of stuff from urfave/cli/v2 to v3 (but not
everything)
- switches everything to maintained version of versioninfo
- tidies a bunch of imports

moved a couple personal side-projects to a separate git repo.

leaving READMEs with links for now.

When you resolve a lexicon with ResolvingCatalog and then try to
validate a record you get the error message ```empty full schema ref```
Moving the call to FinishParse from addSchemaFromBytes to AddSchemaFile
fixes this.

Closes: https://github.com/bluesky-social/indigo/issues/1167

Code for the `goat` CLI was moved a while back. This removes the (now)
stale code from this repo.