Launch Activity Logic

Nucleic-Session: EBB24271-3AB2-4CBD-A47A-59FC73500371
Co-authored-by: Nucleic <[email protected]>

NucleicRemote/NucleicRemote/Models/RemoteStore.swift

@@ -1251,6 +1251,21 @@ final class RemoteStore: ObservableObject {
         }
     }
 
+    /// Send the current push-to-start token to every live, capable host that hasn't got it yet — the
+    /// mirror of `syncLiveActivityRegistration` for the device-scoped token that lets a host create
+    /// the glance over APNs when work starts before the app is opened (iOS 17.2+).
+    private func syncPushToStartRegistration() {
+        guard let token = pushToStartToken else { return }
+        // A host that dropped should re-register when it returns.
+        pushToStartSentTo = pushToStartSentTo.filter { connections[$0]?.connectivity.isLive == true }
+        for (id, conn) in connections {
+            guard conn.connectivity.isLive, conn.capabilities.canPushLiveActivity,
+                  !pushToStartSentTo.contains(id) else { continue }
+            conn.send(.registerPushToStartToken(token))
+            pushToStartSentTo.insert(id)
+        }
+    }
+
     // MARK: - Demo simulator (offline, interactive)
     //
     // In demo mode there's no host, so writes can't go over the wire. Instead they mutate the