Threads Disconnect

Remove the Threads connection.

Threads exposes no token-revoke endpoint (unlike TikTok's /oauth/revoke or Meta's permissions DELETE for Facebook): a long-lived token is invalidated by the user removing the app in their Threads settings, or by letting it lapse 60 days without a refresh. Deleting the row stops every refresh and every API call we would make, which is the part under our control. Said plainly in the response so the user is not told we revoked something we did not.