- Update all model references across 14+ documentation files
- GPT-4.1 → GPT-5, GPT-5 mini
- Claude Sonnet/Opus → Claude Sonnet 4.5, Claude Opus 4.5
- DeepSeek-R1 → DeepSeek-R3
- Add Template: Attendance CRM to SUMMARY.md
- Update attendant.csv docs with multi-channel columns
- Update TASKS.md with completed model updates