Delete Account Data

Delete all of the caller's logged and synced data, keeping the account.

Clears every category, metric, measurement, note, voice session, hunch, and connected integration — but preserves the account itself: the login, the Pro entitlement, and MCP tokens all survive, so the user stays signed in with their subscription and AI connections intact. Backs the "Delete All Data" control in Settings and the /delete-account web page. See cohere/account/deletion.py for exactly what is and isn't removed.