- useCrewModeration: fetch NIP-32 `hidden` labels authored by founder+admins for a crew; useHideCrewPost publishes a kind-1985 hidden label (L/l org.skatespots.moderation, e=post, a=crew)
- CrewDetailPage feed: moderators can hide posts via an EyeOff button + confirm dialog; hidden posts filtered from the feed for everyone, shown greyed/"Hidden from feed" to moderators (reversible/auditable)
- CrewInviteDialog: founder+admins share an invite link/message (native share + copy); founder gets a shortcut to add a member key in crew settings
- Gate all admin actions on useCrewRole().canManage; moderators = founder + delegated admins
- Add MODERATION_LABEL_NAMESPACE/HIDDEN constants
- NIP.md: document feed moderation label format (author must be founder/admin) + invite semantics
Co-authored-by: shakespeare.diy <assistant@shakespeare.diy>
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