chore(ios): 添加LoginView并修复TokenStore类型与线程调度问题

- 在Xcode项目中添加LoginView.swift文件引用
- 修复TokenStore中Keychain查询字典类型为CFString
- 将DispatchQueue.main.async替换为MainActor.run，避免弱引用丢失
- 修复绑定设备信息时的线程安全与变量命名

webrtc_controller_ios/web_rtc_controller_ios/Utils/TokenStore.swift

@@ -42,7 +42,7 @@ enum TokenStore {
 
     static func clear() {
         for k in [accessKey, refreshKey, userKey] {
-            let query: [String: Any] = [
+            let query: [CFString: Any] = [
                 kSecClass: kSecClassGenericPassword,
                 kSecAttrService: service,
                 kSecAttrAccount: k
@@ -55,7 +55,7 @@ enum TokenStore {
 
     private static func save(key: String, value: String) {
         // 先删后存，避免重复条目。
-        let query: [String: Any] = [
+        let query: [CFString: Any] = [
             kSecClass: kSecClassGenericPassword,
             kSecAttrService: service,
             kSecAttrAccount: key,
@@ -66,7 +66,7 @@ enum TokenStore {
     }
 
     private static func load(key: String) -> String? {
-        let query: [String: Any] = [
+        let query: [CFString: Any] = [
             kSecClass: kSecClassGenericPassword,
             kSecAttrService: service,
             kSecAttrAccount: key,

webrtc_controller_ios/web_rtc_controller_ios/ViewModel/ControllerViewModel.swift

@@ -391,7 +391,8 @@ final class ControllerViewModel: NSObject, ObservableObject {
         do {
             let newAt = try await ensureAccessToken()
             accessToken = newAt
-            DispatchQueue.main.async {
+            await MainActor.run { [weak self] in
+                guard let self else { return }
                 self.signalingClient?.disconnect()
                 self.signalingClient = nil
                 // 用新令牌重建连接（REGISTER_SUCCESS 会再次触发 startWebRTC）。
@@ -403,7 +404,8 @@ final class ControllerViewModel: NSObject, ObservableObject {
                 signaling.connect()
             }
         } catch {
-            DispatchQueue.main.async {
+            await MainActor.run { [weak self] in
+                guard let self else { return }
                 self.logout()
                 self.alertMessage = "令牌刷新失败，请重新登录"
             }
@@ -417,13 +419,14 @@ final class ControllerViewModel: NSObject, ObservableObject {
             do {
                 let data = try await ApiClient.bindings(accessToken: at)
                 guard let list = data["bindings"] as? [[String: Any]], !list.isEmpty else { return }
-                let uids = list.compactMap { $ -> String? in
-                    if let u = $["deviceUid"] as? String, !u.isEmpty { return u }
-                    return $["deviceId"] as? String
+                let uids = list.compactMap { entry -> String? in
+                    if let u = entry["deviceUid"] as? String, !u.isEmpty { return u }
+                    return entry["deviceId"] as? String
                 }.filter { !$0.isEmpty }
                 if !uids.isEmpty {
-                    DispatchQueue.main.async {
-                        self.alertMessage = "已绑定设备: " + uids.joined(separator: ", ")
+                    let message = "已绑定设备: " + uids.joined(separator: ", ")
+                    Task { @MainActor [weak self] in
+                        self?.alertMessage = message
                     }
                 }
             } catch { /* 忽略 */ }
@@ -470,7 +473,7 @@ final class ControllerViewModel: NSObject, ObservableObject {
         webRTCClient?.stats { [weak self] report in
             guard let self else { return }
             let text = self.buildStatsText(report)
-            DispatchQueue.main.async {
+            Task { @MainActor in
                 self.statsText = text
             }
         }