Slash commands previously required exact full names. Typing /con
returned 'Unknown command' even though /config was the only match.
Add unambiguous prefix matching in process_command():
- Unique prefix (e.g. /con -> /config): dispatch immediately
- Ambiguous prefix (e.g. /re -> /reset, /retry, /reasoning...):
show 'Did you mean' suggestions
- No match: existing 'Unknown command' error
Prefix matching uses the COMMANDS dict from hermes_cli/commands.py
(same source as SlashCommandCompleter) so it stays in sync with
any new commands added there.
Closes#928
a50550fdb4