1a7e130f9f
- Drop the FIFO from oauthStates: consumed states left entries behind, so an unrate-limited start/cancel cycle grew the slice without bound. Evict by oldest expiry instead — the map alone now bounds memory. - CreateSession runs INSERT + expiry sweep in one transaction. - slices.Contains replaces a hand-rolled contains; APIBase typo fixed. - Stale comments and test paths updated; login hover uses --ember-ink.