Fixes the caveat that dismissing a handled invite/join-request on one device
left it un-dismissed on another (it was per-device localStorage).
- New useCrewDismissals hook: stores the dismissed-id set as a single private,
addressable NIP-78 event (kind 30078, d=skatespots:crew-notif-dismissals)
with a NIP-44 payload encrypted to the user's own key. One list covers both
invites and join-requests.
- useDismissCrewNotification: optimistic local update + best-effort encrypted
publish, so dismissals feel instant and sync across every device the user
logs in from.
- Graceful degradation: always resolves the UNION of the synced list and a
local mirror, so it still works offline and on signers without NIP-44 (they
just don't sync) — no regression from the old behavior.
- Rewired useCrewInvites (accept/decline/approve/dismiss) to the synced set;
removed the two localStorage-only dismissal helpers. Filtering moved into
useCrewNotifications so both invite + request lists share one source of truth.
- Documented the kind-30078 dismissal event in NIP.md.
Build clean, no console errors. Not deployed.
Co-authored-by: shakespeare.diy <assistant@shakespeare.diy>