console: Simplify query_user_add interface

console: Simplify query_user_add interface

- Removes unused field prompt_len
- Change field reponse_len to int since that
  is what the code actually expects. Most callers
  user a constant either way.

Change-Id: I04542e678f81d5d4a853b4370d9b8adc4dac1212
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
Gerrit URL: https://gerrit.openvpn.net/c/openvpn/+/1216
Message-Id: <20251010094753.2825-1-gert@greenie.muc.de>
URL: https://sourceforge.net/p/openvpn/mailman/message/59244794/
Signed-off-by: Gert Doering <gert@greenie.muc.de>