feat: 优化视图组件与数据迁移逻辑

- 移除DataMigrationManager类，简化数据迁移逻辑。
- 在FeedListView和MeView中新增图片预览功能，提升用户体验。
- 更新OptimizedDynamicCardView以支持图片点击回调，增强交互性。
- 新增PreviewItem结构体以管理图片预览状态，提升代码可读性与维护性。
- 清理AppDelegate中的冗余代码，优化启动流程。

yana/AppDelegate.swift

@@ -3,84 +3,10 @@ import UIKit
 
 class AppDelegate: UIResponder, UIApplicationDelegate {
     private func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) async -> Bool {
-        
-//        isPerceptionCheckingEnabled = false
-        
-        // 执行数据迁移（从 UserDefaults 到 Keychain）
-        DataMigrationManager.performStartupMigration()
-        
+
         // 预加载用户信息缓存
         await UserInfoManager.preloadCache()
         
-        // 开启网络监控
-//        NetworkManager.shared.networkStatusChanged = { status in
-//            print("🌍 网络状态更新：\(status)")
-//        }
-        
-#if DEBUG
-        // 🔍 DES加密已切换到OC版本
-//        print("🔐 使用OC版本的DES加密")
-//        DESEncryptOCTest.runInAppDelegate()
-        
-        // 网络诊断 - 使用完整的登录参数测试
-//        let testURL = URL(string: "http://192.168.10.211:8080/oauth/token")!
-//        var request = URLRequest(url: testURL)
-//        request.httpMethod = "POST"
-//        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
-//        request.setValue("application/json", forHTTPHeaderField: "Accept")
-//        request.setValue("zh-Hant", forHTTPHeaderField: "Accept-Language")
-//        
-//        // 添加完整的测试参数
-//        let testParameters: [String: Any] = [
-//            "ispType": "65535",
-//            "phone": "3+TbIQYiwIk=",
-//            "netType": 2,
-//            "channel": "molistar_enterprise",
-//            "version": "20.20.61",
-//            "pub_sign": "2E7C50AA17A20B32A0023F20B7ECE108",
-//            "osVersion": "16.4",
-//            "deviceId": "b715b75715e3417c9c70e72bbe502c6c",
-//            "grant_type": "password",
-//            "os": "iOS",
-//            "app": "youmi",
-//            "password": "nTW/lEgupIQ=",
-//            "client_id": "erban-client",
-//            "lang": "zh-Hant-CN",
-//            "client_secret": "uyzjdhds",
-//            "Accept-Language": "zh-Hant",
-//            "model": "iPhone XR",
-//            "appVersion": "1.0.0"
-//        ]
-//        
-//        do {
-//            let jsonData = try JSONSerialization.data(withJSONObject: testParameters, options: .prettyPrinted)
-//            request.httpBody = jsonData
-//            
-//            print("🛠 原生URLSession登录测试开始")
-//            print("📍 测试端点: \(testURL.absoluteString)")
-//            print("📦 请求参数: \(String(data: jsonData, encoding: .utf8) ?? "无法解析")")
-//            
-//            URLSession.shared.dataTask(with: request) { data, response, error in
-//                DispatchQueue.main.async {
-//                    let statusCode = (response as? HTTPURLResponse)?.statusCode ?? -1
-//                    let responseString = data != nil ? String(data: data!, encoding: .utf8) ?? "无法解析响应" : "无数据"
-//                    
-//                    print("""
-//                    === 网络诊断结果 ===
-//                    🔗 URL: \(testURL.absoluteString)
-//                    📊 响应状态码: \(statusCode)
-//                    ❌ 错误信息: \(error?.localizedDescription ?? "无")
-//                    📦 原始数据: \(data?.count ?? 0) bytes
-//                    📄 响应内容: \(responseString)
-//                    ==================
-//                    """)
-//                }
-//            }.resume()
-//        } catch {
-//            print("❌ JSON序列化失败: \(error.localizedDescription)")
-//        }
-#endif
-        
 //        NIMConfigurationManager.setupNimSDK()
         
         return true