♻️ Refactor watchOS content view

ios/WatchRunner Watch App/State/AppState.swift

@@ -0,0 +1,38 @@
+//
+//  AppState.swift
+//  WatchRunner Watch App
+//
+//  Created by LittleSheep on 2025/10/29.
+//
+
+import SwiftUI
+import Combine
+
+// MARK: - App State
+
+@MainActor
+class AppState: ObservableObject {
+    @Published var token: String? = nil
+    @Published var serverUrl: String? = nil
+    @Published var isReady = false
+    
+    private var wcService = WatchConnectivityService()
+    private var cancellables = Set<AnyCancellable>()
+
+    init() {
+        wcService.$token.combineLatest(wcService.$serverUrl)
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] token, serverUrl in
+                self?.token = token
+                self?.serverUrl = serverUrl
+                if token != nil && serverUrl != nil {
+                    self?.isReady = true
+                }
+            }
+            .store(in: &cancellables)
+    }
+    
+    func requestData() {
+        wcService.requestDataFromPhone()
+    }
+}

ios/WatchRunner Watch App/State/WatchConnectivityService.swift

@@ -0,0 +1,72 @@
+//
+//  WatchConnectivityService.swift
+//  WatchRunner Watch App
+//
+//  Created by LittleSheep on 2025/10/29.
+//
+
+import Foundation
+import WatchConnectivity
+import Combine
+
+// MARK: - Watch Connectivity
+
+class WatchConnectivityService: NSObject, WCSessionDelegate, ObservableObject {
+    @Published var token: String?
+    @Published var serverUrl: String?
+
+    private let session: WCSession
+
+    override init() {
+        self.session = .default
+        super.init()
+        print("[watchOS] Activating WCSession")
+        self.session.delegate = self
+        self.session.activate()
+    }
+
+    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
+        if let error = error {
+            print("[watchOS] WCSession activation failed with error: \(error.localizedDescription)")
+            return
+        }
+        print("[watchOS] WCSession activated with state: \(activationState.rawValue)")
+        if activationState == .activated {
+            requestDataFromPhone()
+        }
+    }
+
+    func session(_ session: WCSession, didReceiveMessage message: [String : Any]) {
+        print("[watchOS] Received message: \(message)")
+        DispatchQueue.main.async {
+            if let token = message["token"] as? String {
+                self.token = token
+            }
+            if let serverUrl = message["serverUrl"] as? String {
+                self.serverUrl = serverUrl
+            }
+        }
+    }
+
+    func requestDataFromPhone() {
+        guard session.isReachable else {
+            print("[watchOS] Phone is not reachable")
+            return
+        }
+        
+        print("[watchOS] Requesting data from phone")
+        session.sendMessage(["request": "data"]) { [weak self] response in
+            print("[watchOS] Received reply: \(response)")
+            DispatchQueue.main.async {
+                if let token = response["token"] as? String {
+                    self?.token = token
+                }
+                if let serverUrl = response["serverUrl"] as? String {
+                    self?.serverUrl = serverUrl
+                }
+            }
+        } errorHandler: { error in
+            print("[watchOS] sendMessage failed with error: \(error.localizedDescription)")
+        }
+    }
+}