create re-enables what holds refuses (mssql login, mosquitto client,
mailu mailbox, gitea user) and clears an expired postgres password, so
no disabled account loops. mssql and mongodb checks take the password
from the environment, never argv; mosquitto_ctrl failures no longer
repeat -P. mosquitto reads 'could not ask' as an error, not absence.
mailu checks existence and enabled only: its imap passdb cannot verify
a password. mssql checks the user's SID; gitea pages teams at 50.
jochen
6fd93afc6c