♻️ Use fully native implmentation of app intents on iOS

ios/Runner/Services/SharedConstants.swift

@@ -0,0 +1,45 @@
+//
+//  SharedConstants.swift
+//  Runner
+//
+//  Created by LittleSheep on 2026/1/16.
+//
+
+import Foundation
+
+enum SharedConstants {
+    static let appGroupId = "group.solsynth.solian"
+    static let urlScheme = "solian"
+    static let serverUrlKey = "flutter.app_server_url"
+    static let tokenKey = "flutter.dyn_user_tk"
+    static let defaultServerUrl = "https://api.solian.app"
+
+    enum API {
+        static let notificationsCount = "/ring/notifications/count"
+        static let notificationsMarkRead = "/ring/notifications/all/read"
+        static let unreadChats = "/messager/chat/unread"
+        static let messages = "/messager/chat/%@/messages"
+        static let sendMessage = "/messager/chat/%@/messages"
+    }
+}
+
+extension UserDefaults {
+    static let shared: UserDefaults = {
+        UserDefaults(suiteName: SharedConstants.appGroupId) ?? UserDefaults.standard
+    }()
+
+    func getServerUrl() -> String {
+        string(forKey: SharedConstants.serverUrlKey) ?? SharedConstants.defaultServerUrl
+    }
+
+    func getAuthToken() -> String? {
+        guard let jsonString = string(forKey: SharedConstants.tokenKey),
+              let data = jsonString.data(using: .utf8),
+              let jsonObject = try? JSONSerialization.jsonObject(with: data),
+              let jsonDict = jsonObject as? [String: Any],
+              let token = jsonDict["token"] as? String else {
+            return nil
+        }
+        return token
+    }
+}