feat: 更新日志级别管理及底部导航栏组件化

- 在ContentView中根据编译模式初始化日志级别，确保调试信息的灵活性。
- 在APILogger中使用actor封装日志级别，增强并发安全性。
- 新增通用底部Tab栏组件，优化MainPage中的底部导航逻辑，提升代码可维护性。
- 移除冗余的AppRootView和MainView，简化视图结构，提升代码整洁性。

yana/APIs/APILogger.swift

@@ -7,12 +7,18 @@ class APILogger {
         case basic
         case detailed
     }
-    
-    #if DEBUG
-    static let logLevel: LogLevel = .detailed
-    #else
-    static let logLevel: LogLevel = .none
-    #endif
+
+    // 使用 actor 封装可变全局状态以保证并发安全
+    actor Config {
+        static let shared = Config()
+#if DEBUG
+        private var level: LogLevel = .detailed
+#else
+        private var level: LogLevel = .none
+#endif
+        func get() -> LogLevel { level }
+        func set(_ newLevel: LogLevel) { level = newLevel }
+    }
     
     private static let logQueue = DispatchQueue(label: "com.yana.api.logger", qos: .utility)
 
@@ -90,13 +96,13 @@ class APILogger {
         body: Data?,
         finalHeaders: [String: String]? = nil
     ) {
-        #if DEBUG
-        guard logLevel != .none else { return }
-        #else
+        #if !DEBUG
         return
-        #endif
-        
-        logQueue.async {
+        #else
+        Task {
+            let level = await Config.shared.get()
+            guard level != .none else { return }
+            logQueue.async {
             let timestamp = dateFormatter.string(from: Date())
             debugInfoSync("\n🚀 [API Request] [\(timestamp)] ==================")
             debugInfoSync("📍 Endpoint: \(request.endpoint)")
@@ -106,13 +112,13 @@ class APILogger {
             
             // 显示最终的完整 headers（包括默认 headers 和自定义 headers）
             if let headers = finalHeaders, !headers.isEmpty {
-                if logLevel == .detailed {
+                if level == .detailed {
                     debugInfoSync("📋 Final Headers (包括默认 + 自定义):")
                     let masked = maskHeaders(headers)
                     for (key, value) in masked.sorted(by: { $0.key < $1.key }) {
                         debugInfoSync("   \(key): \(value)")
                     }
-                } else if logLevel == .basic {
+                } else if level == .basic {
                     debugInfoSync("📋 Headers: \(headers.count) 个 headers")
                     // 只显示重要的 headers
                     let importantHeaders = ["Content-Type", "Accept", "User-Agent", "Authorization"]
@@ -141,7 +147,7 @@ class APILogger {
                 }
             }
             
-            if logLevel == .detailed {
+            if level == .detailed {
                 let pretty = maskedBodyString(from: body)
                 debugInfoSync("📦 Request Body: \n\(pretty)")
                 
@@ -149,7 +155,7 @@ class APILogger {
                 if request.includeBaseParameters {
                     debugInfoSync("📱 Base Parameters: 已自动注入")
                 }
-            } else if logLevel == .basic {
+            } else if level == .basic {
                 let size = body?.count ?? 0
                 debugInfoSync("📦 Request Body: \(formatBytes(size))")
                 
@@ -159,18 +165,20 @@ class APILogger {
                 }
             }
             debugInfoSync("=====================================")
+            }
         }
+        #endif
     }
     
     // MARK: - Response Logging
     static func logResponse(data: Data, response: HTTPURLResponse, duration: TimeInterval) {
-        #if DEBUG
-        guard logLevel != .none else { return }
-        #else
+        #if !DEBUG
         return
-        #endif
-        
-        logQueue.async {
+        #else
+        Task {
+            let level = await Config.shared.get()
+            guard level != .none else { return }
+            logQueue.async {
             let timestamp = dateFormatter.string(from: Date())
             let statusEmoji = response.statusCode < 400 ? "✅" : "❌"
             debugInfoSync("\n\(statusEmoji) [API Response] [\(timestamp)] ===================")
@@ -179,7 +187,7 @@ class APILogger {
             debugInfoSync("🔗 URL: \(response.url?.absoluteString ?? "Unknown")")
             debugInfoSync("📏 Data Size: \(formatBytes(data.count))")
             
-            if logLevel == .detailed {
+            if level == .detailed {
                 debugInfoSync("📋 Response Headers:")
                 // 将 headers 转为 [String:String] 后脱敏
                 var headers: [String: String] = [:]
@@ -204,18 +212,20 @@ class APILogger {
                 }
             }
             debugInfoSync("=====================================")
+            }
         }
+        #endif
     }
     
     // MARK: - Error Logging
     static func logError(_ error: Error, url: URL?, duration: TimeInterval) {
-        #if DEBUG
-        guard logLevel != .none else { return }
-        #else
+        #if !DEBUG
         return
-        #endif
-        
-        logQueue.async {
+        #else
+        Task {
+            let level = await Config.shared.get()
+            guard level != .none else { return }
+            logQueue.async {
             let timestamp = dateFormatter.string(from: Date())
             debugErrorSync("\n❌ [API Error] [\(timestamp)] ======================")
             debugErrorSync("⏱️  Duration: \(String(format: "%.3f", duration))s")
@@ -229,7 +239,7 @@ class APILogger {
                 debugErrorSync("🚨 System Error: \(error.localizedDescription)")
             }
             
-            if logLevel == .detailed {
+            if level == .detailed {
                 if let urlError = error as? URLError {
                     debugInfoSync("🔍 URLError Code: \(urlError.code.rawValue)")
                     debugInfoSync("🔍 URLError Localized: \(urlError.localizedDescription)")
@@ -251,22 +261,26 @@ class APILogger {
                 debugInfoSync("🔍 Full Error: \(error)")
             }
             debugErrorSync("=====================================\n")
+            }
         }
+        #endif
     }
     
     // MARK: - Decoded Response Logging
     static func logDecodedResponse<T>(_ response: T, type: T.Type) {
-        #if DEBUG
-        guard logLevel == .detailed else { return }
-        #else
+        #if !DEBUG
         return
-        #endif
-        
-        logQueue.async {
+        #else
+        Task {
+            let level = await Config.shared.get()
+            guard level == .detailed else { return }
+            logQueue.async {
             let timestamp = dateFormatter.string(from: Date())
             debugInfoSync("🎯 [Decoded Response] [\(timestamp)] Type: \(type)")
             debugInfoSync("=====================================\n")
+            }
         }
+        #endif
     }
     
     // MARK: - Helper Methods
@@ -279,18 +293,20 @@ class APILogger {
     
     // MARK: - Performance Logging
     static func logPerformanceWarning(duration: TimeInterval, threshold: TimeInterval = 5.0) {
-        #if DEBUG
-        guard logLevel != .none && duration > threshold else { return }
-        #else
+        #if !DEBUG
         return
-        #endif
-        
-        logQueue.async {
+        #else
+        Task {
+            let level = await Config.shared.get()
+            guard level != .none && duration > threshold else { return }
+            logQueue.async {
             let timestamp = dateFormatter.string(from: Date())
             debugWarnSync("\n⚠️ [Performance Warning] [\(timestamp)] ============")
             debugWarnSync("🐌 Request took \(String(format: "%.3f", duration))s (threshold: \(threshold)s)")
             debugWarnSync("💡 建议：检查网络条件或优化 API 响应")
             debugWarnSync("================================================\n")
+            }
         }
+        #endif
     }
 }