API v1 no longer mints short-lived JWT access tokens. Clients send the grant
secret from POST /auth/login or /auth/setup as `Authorization: Bearer` on
every request.
Every request already looked the grant up in the database, so the JWT gave
no speed or revocation benefit and only added a refresh loop, which early
client authors pushed back on. The grant already is an API key: one per
client sign-in, scoped and revocable. Revocation is now immediate on every
node; the contract promises "within one minute".
Removed: POST /auth/token, the grantAuth scheme, the TokenRequest and
AccessToken schemas, the token_expired problem code, the API v1 JWT signer
and its signing key, the grant liveness cache, and PropertyRepository.PutIfAbsent.
ResolveGrant is now Authenticate.
Short-lived tokens return later only as narrow media tokens for
?access_token= on media URLs, together with the media endpoints.
Signed-off-by: Deluan <deluan@navidrome.org>
