add proxy support and fix macOS settings layout

SwiftCraftLauncher.xcodeproj/project.pbxproj

@@ -14,7 +14,7 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
-		90CA960A2E5C438F00E705DB /* Swift Craft Launcher.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "Swift Craft Launcher.app"; sourceTree = BUILT_PRODUCTS_DIR; };
+		366249962E5F37A2005B440E /* Swift Craft Launcher.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "Swift Craft Launcher.app"; sourceTree = BUILT_PRODUCTS_DIR; };
 /* End PBXFileReference section */
 
 /* Begin PBXFileSystemSynchronizedRootGroup section */
@@ -44,6 +44,7 @@
 			isa = PBXGroup;
 			children = (
 				9023D8332E3139B5005A53F1 /* SwiftCraftLauncher */,
+				366249962E5F37A2005B440E /* Swift Craft Launcher.app */,
 			);
 			sourceTree = "<group>";
 		};
@@ -73,7 +74,7 @@
 				90E123456789ABCD0002 /* Sparkle */,
 			);
 			productName = SwiftCraftLauncher;
-			productReference = 90CA960A2E5C438F00E705DB /* Swift Craft Launcher.app */;
+			productReference = 366249962E5F37A2005B440E /* Swift Craft Launcher.app */;
 			productType = "com.apple.product-type.application";
 		};
 /* End PBXNativeTarget section */

SwiftCraftLauncher/Common/Managers/DownloadManager.swift

@@ -141,7 +141,7 @@ class DownloadManager {
 
         // 下载文件到临时位置
         do {
-            let (tempFileURL, response) = try await URLSession.shared.download(from: url)
+            let (tempFileURL, response) = try await NetworkManager.shared.download(from: url)
             defer { try? fileManager.removeItem(at: tempFileURL) }
 
             guard let httpResponse = response as? HTTPURLResponse else {

SwiftCraftLauncher/Common/Managers/NetworkManager.swift

@@ -0,0 +1,116 @@
+import Foundation
+
+class NetworkManager {
+    static let shared = NetworkManager()
+
+    private let proxySettings = ProxySettingsManager.shared
+    private var cachedSession: URLSession?
+    private var lastProxyConfiguration: ProxyConfiguration?
+
+    private init() {
+        setupProxyChangeObserver()
+    }
+
+    deinit {
+        cachedSession?.invalidateAndCancel()
+    }
+
+    /// 设置代理配置变化监听
+    private func setupProxyChangeObserver() {
+        // 监听代理设置变化
+        NotificationCenter.default.addObserver(
+            forName: NSNotification.Name("ProxyConfigurationChanged"),
+            object: nil,
+            queue: .main
+        ) { [weak self] _ in
+            self?.invalidateSession()
+        }
+    }
+
+    /// 清理缓存的session
+    private func invalidateSession() {
+        cachedSession?.invalidateAndCancel()
+        cachedSession = nil
+        lastProxyConfiguration = nil
+    }
+
+    /// 获取配置了代理的URLSession
+    var urlSession: URLSession {
+        let currentConfig = proxySettings.configuration
+
+        // 检查是否需要重新创建session
+        if let cached = cachedSession, 
+           let lastConfig = lastProxyConfiguration,
+           lastConfig.isEnabled == currentConfig.isEnabled &&
+           lastConfig.proxyType == currentConfig.proxyType &&
+           lastConfig.host == currentConfig.host &&
+           lastConfig.port == currentConfig.port &&
+           lastConfig.username == currentConfig.username &&
+           lastConfig.password == currentConfig.password {
+            return cached
+        }
+
+        // 清理旧session
+        invalidateSession()
+
+        // 创建新的configuration
+        let configuration = URLSessionConfiguration.default.copy() as! URLSessionConfiguration
+
+        if proxySettings.isProxyEnabled && proxySettings.configuration.isValid {
+            let config = proxySettings.configuration
+
+            var proxyDict: [String: Any] = [:]
+
+            if config.proxyType == .http {
+                proxyDict[kCFNetworkProxiesHTTPEnable as String] = true
+                proxyDict[kCFNetworkProxiesHTTPProxy as String] = config.host
+                proxyDict[kCFNetworkProxiesHTTPPort as String] = config.port
+                proxyDict[kCFNetworkProxiesHTTPSEnable as String] = true
+                proxyDict[kCFNetworkProxiesHTTPSProxy as String] = config.host
+                proxyDict[kCFNetworkProxiesHTTPSPort as String] = config.port
+
+                // HTTP 认证
+                if config.hasAuthentication {
+                    proxyDict["HTTPProxyUsername"] = config.username
+                    proxyDict["HTTPProxyPassword"] = config.password
+                    proxyDict["HTTPSProxyUsername"] = config.username
+                    proxyDict["HTTPSProxyPassword"] = config.password
+                }
+            } else if config.proxyType == .socks5 {
+                proxyDict[kCFNetworkProxiesSOCKSEnable as String] = true
+                proxyDict[kCFNetworkProxiesSOCKSProxy as String] = config.host
+                proxyDict[kCFNetworkProxiesSOCKSPort as String] = config.port
+
+                // SOCKS5 认证
+                if config.hasAuthentication {
+                    proxyDict["SOCKSUsername"] = config.username
+                    proxyDict["SOCKSPassword"] = config.password
+                }
+            }
+
+            configuration.connectionProxyDictionary = proxyDict
+        }
+
+        // 创建并缓存session
+        let session = URLSession(configuration: configuration)
+        cachedSession = session
+        lastProxyConfiguration = currentConfig
+
+        return session
+    }
+
+    /// 使用代理设置执行网络请求
+    func data(from url: URL) async throws -> (Data, URLResponse) {
+        return try await urlSession.data(from: url)
+    }
+
+    /// 使用代理设置下载文件
+    func download(from url: URL) async throws -> (URL, URLResponse) {
+        return try await urlSession.download(from: url)
+    }
+
+    /// 使用代理设置执行请求
+    func data(for request: URLRequest) async throws -> (Data, URLResponse) {
+        return try await urlSession.data(for: request)
+    }
+}