- Change MENTION_TOKEN to MENTION_REGEX supporting both @AI_visual and @AI_Visualizer
- Makes it case-insensitive and consistent with other agents (AI_Moderator, AI_Designer)
- Update agent name from AI_Visual to AI_Visualizer
- Update HTML markers from AUTO:VISUAL to AUTO:VISUALIZER
- Update tests to match new naming
- All tests passing
- Remove HTML comment markers from AI_Moderator and AI_Designer
- These are voting participants, not background tools
- Should comment naturally like humans in discussions
- Occasional duplicate comments are acceptable and enrich discussion
- Background agents (Visualizer, Researcher) still keep markers
- Updated test to check for 'Name: AI_Moderator' instead of markers
- All 41 tests passing
rob