- Remove "Use .cmd for this role" reply when owner uses wrong prefix;
wrong-prefix commands are now silently ignored for all users
- Fix AIImageUnderstandConfig default api_host to api.minimax.chat
(minimax-coding-plan-mcp routes all calls there, not api.minimax.io)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>