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Summary

Moves the Jellyfin dialog into its own Jellyfin settings tab, laid out in the order you set Jellyfin up: server address, sign in, playback, browsing. Household members get their own People tab instead of a panel at the bottom of Watch Tracking. Every setting keeps its config key and default; only where it lives and how it is presented changes. No server changes.

Why this approach

• One home per setting. A person's settings live on their card in People (Profile, Tracking, Catalogs, Jellyfin). Feature tabs hold only settings for everyone, and links between tabs point forward in nav order: Catalogs, People, Watch Tracking, Jellyfin.
• Jellyfin tab. A status strip, the server address with copy, Quick Connect with a six-box code input (it asks who the app is for once several people exist, and can add a person inline), the client password with reveal and a confirm before replacing, the stream addon with a live manifest check, skip markers, and the browsing options.
• Hidden when off. With JELLYFIN_API_ENABLED off the tab is left out of the nav, the mobile picker, prev/next and search, and #jellyfin falls back to General.
• One read of /api/config. useJellyfinServer is a single React Query instead of several separate fetches.
• Old links keep working. #watch-tracking/household-users.<id> redirects to #people/<id>.
• The Configuration tab's Jellyfin button now opens the tab, and JellyfinDialog.tsx is removed.