- New /change-password route: validates current password, enforces min 4 chars, requires confirmation match - update_password() helper in models.py - Dashboard UI split into two collapsible sections: 👤 Account Settings (password, ntfy, delete account) 🏠 Household Settings (admin only: public link, timezone, delete household) - 14 new i18n keys with fr/de translations - Restored accidentally dropped 'Delete My Account' key