* [feature] overhaul the oidc system
this allows for more flexible username handling and prevents account
takeover using old email addresses
* [feature] add migration path for old OIDC users
* [feature] nicer error reporting for users
* [docs] document the new OIDC flow
* [fix] return early on oidc error
* [docs]: add comments on the finalization logic
* update templates
* start reworking api error handling
* update template
* return AP status at web endpoint if negotiated
* start making api error handling much more consistent
* update account endpoints to new error handling
* use new api error handling in admin endpoints
* go fmt ./...
* use api error logic in app
* use generic error handling in auth
* don't export generic error handler
* don't defer clearing session
* user nicer error handling on oidc callback handler
* tidy up the sign in handler
* tidy up the token handler
* use nicer error handling in blocksget
* auth emojis endpoint
* fix up remaining api endpoints
* fix whoopsie during login flow
* regenerate swagger docs
* change http error logging to debug
* start pulling out + replacing urfave and config
* replace many many instances of config
* move more stuff => viper
* properly remove urfave
* move some flags to root command
* add testrig commands to root
* alias config file keys
* start adding cli parsing tests
* reorder viper init
* remove config path alias
* fmt
* change config file keys to non-nested
* we're more or less in business now
* tidy up the common func
* go fmt
* get tests passing again
* add note about the cliparsing tests
* reorganize
* update docs with changes
* structure cmd dir better
* rename + move some files around
* fix dangling comma
* start moving some database stuff around
* continue moving db stuff around
* more fiddling
* more updates
* and some more
* and yet more
* i broke SOMETHING but what, it's a mystery
* tidy up
* vendor ttlcache
* use ttlcache
* fix up some tests
* rename some stuff
* little reminder
* some more updates
