Password resets no longer destroy user data: the DEK is system-wrapped, so
forgot-password and admin resets are just a hash update plus session revoke.
The wipe branch survives only for accounts that never logged in since the
encryption upgrade and now requires explicit confirmDataWipe (surfaced as a
409 DATA_WIPE_REQUIRED; the reset UI asks for confirmation). Adds
POST /users/admin/reset-password and removes the dead re-encryption paths.
LukeGus