Amber: make crew-notification dismissal local-only for interactive signers

Accepting/declining a crew invite (and handling join-requests) fired an
encrypted NIP-78 cross-device sync on every dismissal, costing an extra
encrypt + sign Amber approval on top of the required membership signature.

For interactive (Amber) signers, dismissal is now kept local-only:
  • Accept invite  → 1 Amber prompt (membership attestation only)
  • Decline invite → 0 Amber prompts (local dismissal only)

The dismissal still applies instantly and permanently on-device; only the
cross-device "clear it on my other devices too" nicety is dropped for Amber.
Extension/nsec/bunker signers keep the silent encrypted sync (free for them).

Bumps to 1.2.19 (Android versionCode 10219 auto-derived).

Co-authored-by: shakespeare.diy <assistant@shakespeare.diy>

package.json

@@ -1,7 +1,7 @@
 {
   "name": "skate-spots",
   "private": true,
-  "version": "1.2.18",
+  "version": "1.2.19",
   "type": "module",
   "homepage": "https://skate-spots.com",
   "scripts": {

src/hooks/useCrewDismissals.ts

@@ -3,6 +3,7 @@ import { useNostrLogin } from '@nostrify/react/login';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { useCurrentUser } from '@/hooks/useCurrentUser';
 import { isInteractiveSigner } from '@/lib/signerCapabilities';
+import { useCallback } from 'react';
 
 /**
  * Cross-device "dismissed crew notifications" set.
@@ -129,15 +130,36 @@ export function useCrewDismissals() {
  * Dismiss a notification by its event id. Optimistically updates the cache +
  * local mirror immediately, then (best-effort) publishes the encrypted synced
  * list so other devices catch up.
+ *
+ * INTERACTIVE SIGNERS (Amber): the cross-device encrypted sync is skipped
+ * entirely and the dismissal is kept LOCAL-ONLY. Dismissing is a low-stakes,
+ * high-frequency action (fired on accept/decline of every crew invite and on
+ * every handled join-request), and the encrypted sync costs an extra
+ * encrypt + sign — i.e. one or two additional Amber approval screens per tap.
+ *
+ * Since accepting a crew invite ALREADY requires the membership-attestation
+ * signature (the one that actually makes you a member), forcing a *second*
+ * Amber round-trip just to clear the notification on your other devices is
+ * poor UX and not worth it. So for Amber:
+ *   • Accept invite  → 1 Amber prompt  (the membership attestation only)
+ *   • Decline invite → 0 Amber prompts (local dismissal only)
+ * The cross-device "also clear it on my laptop" nicety is silently dropped for
+ * Amber; the dismissal still holds instantly and permanently on this device.
+ *
+ * Non-interactive signers (extension / nsec / bunker) still get the silent
+ * encrypted cross-device sync — it's free for them (no approval screens).
  */
 export function useDismissCrewNotification() {
   const { nostr } = useNostr();
   const { user } = useCurrentUser();
+  const { logins } = useNostrLogin();
   const queryClient = useQueryClient();
 
-  return useMutation({
-    mutationFn: async (id: string) => {
-      // 1. Optimistic local update (works for everyone, instantly).
+  const interactive = isInteractiveSigner(user, logins);
+
+  const mutate = useCallback(
+    async (id: string) => {
+      // 1. Optimistic local update (works for everyone, instantly + offline).
       const key = dismissKey(user?.pubkey);
       const current = queryClient.getQueryData<Set<string>>(key) ?? new Set(readLocal());
       const next = new Set(current);
@@ -145,7 +167,10 @@ export function useDismissCrewNotification() {
       queryClient.setQueryData(key, next);
       writeLocal([...next]);
 
-      // 2. Best-effort sync via an encrypted NIP-78 event.
+      // 2. Interactive signer (Amber): stop here — local-only, NO extra prompt.
+      if (interactive) return;
+
+      // 3. Non-interactive signer: best-effort encrypted NIP-78 cross-device sync.
       const nip44 = getNip44(user);
       if (!user?.pubkey || !nip44) return; // no NIP-44: local-only, no throw
 
@@ -166,6 +191,11 @@ export function useDismissCrewNotification() {
         // Publishing failed — the local dismissal still holds on this device.
       }
     },
+    [nostr, user, queryClient, interactive],
+  );
+
+  return useMutation({
+    mutationFn: mutate,
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: dismissKey(user?.pubkey) });
     },