The register handler, local/LDAP login and the OIDC callback all queue
the user.created event via DispatchOnCommit but never called
DispatchPending, so the event was silently dropped and its queue entry
leaked. Flush after commit and discard on rollback.
Pull the HTTP-independent core out of the v1 auth handlers so both
/api/v1 and the upcoming /api/v2 routes share one implementation:
- oauth2server: ExchangeToken and Authorize take plain inputs and return
typed responses; HandleToken/HandleAuthorize keep binding + headers.
- pkg/routes/api/shared: AuthenticateLinkShare, RegisterUser,
ResetPassword (+ session clear), RequestPasswordResetToken and
ConfirmEmail, plus the shared UserRegister and LinkShareToken types.
v1 handlers now delegate to these; their wire output is unchanged.