feat: 添加项目基础文件和依赖管理

新增.gitignore、Podfile和Podfile.lock文件以管理项目依赖，添加README.md文件提供项目简介和安装步骤，创建NIMSessionManager、ClientConfig、LogManager和NetworkManager等管理类以支持网络请求和日志记录功能，更新AppDelegate和ContentView以集成NIM SDK和实现用户登录功能。

yana/Managers/NIMConfigurationManager.swift

@@ -1,10 +1,33 @@
 import NIMSDK
+import NECoreKit
+import NECoreIM2Kit
+import NEChatKit
+import NEChatUIKit
 
 struct NIMConfigurationManager {
-    static func setupSDK() {
-        NIMSDK.shared().register(
-            withAppID: "79bc37000f4018a2a24ea9dc6ca08d32",
-            cerName: "pikoDevelopPush"
-        )
+
+    static func setupNimSDK() {
+        let option = configureNIMSDKOption()
+        setupSDK(with: option)
+        setupChatSDK(with: option)
     }
-}
+    
+    static func setupSDK(with option: NIMSDKOption) {
+        NIMSDK.shared().register(with: option)
+        NIMSDKConfig.shared().shouldConsiderRevokedMessageUnreadCount = true
+        NIMSDKConfig.shared().shouldSyncStickTopSessionInfos = true
+    }
+
+    static func setupChatSDK(with option: NIMSDKOption) {
+        let v2Option = V2NIMSDKOption()
+        v2Option.enableV2CloudConversation = false
+        IMKitClient.instance.setupIM2(option, v2Option)
+    }
+    
+    static func configureNIMSDKOption() -> NIMSDKOption {
+        let option = NIMSDKOption()
+        option.appKey = "79bc37000f4018a2a24ea9dc6ca08d32"
+        option.apnsCername = "pikoDevelopPush"
+        return option
+    }
+}