iOS/Gateway: wake disconnected iOS nodes via APNs before invoke (#20332)

Merged via /review-pr -> /prepare-pr -> /merge-pr.

Prepared head SHA: 7751f9c531
Co-authored-by: mbelinky <132747814+mbelinky@users.noreply.github.com>
Co-authored-by: mbelinky <132747814+mbelinky@users.noreply.github.com>
Reviewed-by: @mbelinky

apps/ios/Sources/Model/NodeAppModel.swift

@@ -41,6 +41,7 @@ private final class NotificationInvokeLatch<T: Sendable>: @unchecked Sendable {
 @Observable
 final class NodeAppModel {
     private let deepLinkLogger = Logger(subsystem: "ai.openclaw.ios", category: "DeepLink")
+    private let pushWakeLogger = Logger(subsystem: "ai.openclaw.ios", category: "PushWake")
     enum CameraHUDKind {
         case photo
         case recording
@@ -2125,6 +2126,15 @@ extension NodeAppModel {
         await self.registerAPNsTokenIfNeeded()
     }
 
+    func handleSilentPushWake(_ userInfo: [AnyHashable: Any]) async -> Bool {
+        guard Self.isSilentPushPayload(userInfo) else {
+            self.pushWakeLogger.info("Ignored APNs payload: not silent push")
+            return false
+        }
+        self.pushWakeLogger.info("Silent push received; attempting reconnect if needed")
+        return await self.reconnectGatewaySessionsForSilentPushIfNeeded()
+    }
+
     func updateAPNsDeviceToken(_ tokenData: Data) {
         let tokenHex = tokenData.map { String(format: "%02x", $0) }.joined()
         let trimmed = tokenHex.trimmingCharacters(in: .whitespacesAndNewlines)
@@ -2170,6 +2180,51 @@ extension NodeAppModel {
             // Best-effort only.
         }
     }
+
+    private static func isSilentPushPayload(_ userInfo: [AnyHashable: Any]) -> Bool {
+        guard let apsAny = userInfo["aps"] else { return false }
+        if let aps = apsAny as? [AnyHashable: Any] {
+            return Self.hasContentAvailable(aps["content-available"])
+        }
+        if let aps = apsAny as? [String: Any] {
+            return Self.hasContentAvailable(aps["content-available"])
+        }
+        return false
+    }
+
+    private static func hasContentAvailable(_ value: Any?) -> Bool {
+        if let number = value as? NSNumber {
+            return number.intValue == 1
+        }
+        if let text = value as? String {
+            return text.trimmingCharacters(in: .whitespacesAndNewlines) == "1"
+        }
+        return false
+    }
+
+    private func reconnectGatewaySessionsForSilentPushIfNeeded() async -> Bool {
+        guard self.isBackgrounded else {
+            self.pushWakeLogger.info("Wake no-op: app not backgrounded")
+            return false
+        }
+        guard self.gatewayAutoReconnectEnabled else {
+            self.pushWakeLogger.info("Wake no-op: auto reconnect disabled")
+            return false
+        }
+        guard self.activeGatewayConnectConfig != nil else {
+            self.pushWakeLogger.info("Wake no-op: no active gateway config")
+            return false
+        }
+
+        await self.operatorGateway.disconnect()
+        await self.nodeGateway.disconnect()
+        self.operatorConnected = false
+        self.gatewayConnected = false
+        self.gatewayStatusText = "Reconnecting…"
+        self.talkMode.updateGatewayConnected(false)
+        self.pushWakeLogger.info("Wake reconnect trigger applied")
+        return true
+    }
 }
 
 #if DEBUG