SportIdent cards

Audience: Event organisers and operators working with SI cards.

What Manager does with SI cards — which ones it supports, what it reads from them, and how to handle edge cases.

Status: Stub — not yet written. The low-level binary protocol lives in web/.ai/SPORTIDENT.md and documentation/SportIdent_Documentation.md; this page will stay user-level.

What this page will cover

[ ] Supported SI card types (SI5, SI6, SI8, SI9, SI10, SI11, pCard, SIAC, etc.)
[ ] What Manager reads from a card (punches, start, finish, check, times)
[ ] How cards with no owner are handled
[ ] Rented / shared cards
[ ] Common problems — unreadable card, wrong clock on the SI box, card overflow
[ ] Physical care and longevity tips (batteries, cleaning)