•  chad docs: add helper guide for secure compliance links Collaborators are now secure-link users, so document the helper-facing compliance view: opening the link, the Delegates tab and summary, checking off Entry Fee / MA Reg / AHA Donation, and the placeholder Volunteers tab. - New page: using-a-compliance-link.md - New "For Helpers" section in Home.md and the conventions - Cross-linked from compliance-tracking and the glossary Claude-Assisted f67cb87