Connection.status was write-only health state (only the Jellyfin refresh wrote it, nothing read it — MultiServerManager owns real server status), ConnectionKind duplicated MediaBackend line for line, the token-to-PlexAccountConnection pipeline existed three times (sign-in, dev-token seed, legacy migration) with drifting label/dedup policy, and JellyfinConnectionAuthService.validate/refresh/signOut had no production callers.
Connection.kind is now MediaBackend (persisted 'plex'/'jellyfin'/'emby' strings are identical, no migration); buildPlexAccountConnection in plex_account_setup.dart owns identity resolution with the three callers keeping only their genuine deltas; the test-only auth trio and its jellyfinSignOut timeout constant are gone.
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