New docs/FEATURE-FLAGS.md captures when to add a flag, where the moving
parts live, how to use useFeatureFlag from app code, the 4 states + 4
scope axes, kill-switch flow, naming conventions, and the parts we know
aren't built yet (partnerSlug eval context, user-level flags, audit-log
integration, server-side cache).
CLAUDE.md gets a one-line convention entry under "Code conventions" so
future devs notice it when grepping for code rules. NEXT-STEPS.md is
updated: the feature-flag backend follow-up is now ticked done with a
pointer to FEATURE-FLAGS.md for the remaining sub-tasks, and the
"What landed" section reflects the real Infrastructure + Flags pages
and the notification drawer.
Ronni Baslund