AI chat history is now device-local by default

[jsgrrchg]

For newly created vaults, AI chats and pasted screenshots are now stored locally on your device instead of inside the vault. This prevents private conversations from being synced or shared with the vault unless you explicitly choose to do so.

You can change this at any time from Settings → Store AI chats inside this vault. NeverWrite will safely move the managed history and attachments, and interrupted moves can be resumed through the recovery flow.

Existing vaults keep their current storage location—nothing is migrated automatically. External files attached to chats are never moved or deleted.