OpenClawKit: restore ping test conformance

CHANGELOG.md

@@ -6,6 +6,8 @@ Docs: https://docs.openclaw.ai
 
 ### Changes
 
+- iOS/Gateway: stabilize background wake and reconnect behavior with background reconnect suppression/lease windows, BGAppRefresh wake fallback, location wake hook throttling, and APNs wake retry+nudge instrumentation. (#21226) thanks @mbelinky.
+
 ### Fixes
 
 - Discord/Gateway: handle close code 4014 (missing privileged gateway intents) without crashing the gateway. Thanks @thewilloftheshadow.

apps/shared/OpenClawKit/Tests/OpenClawKitTests/GatewayNodeSessionTests.swift

@@ -75,6 +75,10 @@ private final class FakeGatewayWebSocketTask: WebSocketTasking, @unchecked Senda
         }
     }
 
+    func sendPing(pongReceiveHandler: @escaping @Sendable (Error?) -> Void) {
+        pongReceiveHandler(nil)
+    }
+
     func receive() async throws -> URLSessionWebSocketTask.Message {
         let phase = self.lock.withLock { () -> Int in
             let current = self.receivePhase