Added Teams deployment + HIPAA-appropriate configuration as a tracked
gap (hipaa.md #27) and M365 issue (m365.md #14). Cites transmission
security + BAA requirements and outlines controls needed (retention,
DLP, external sharing lockdown, guest access, meeting consent).
Dependency on Microsoft BAA flagged.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>