更新程序内嵌资源文件 (2dust#6101)

* fix

* fix

* 移除自述

* 改用单例模式，避免多次初始化。

* 小修正

* 修正

* 更正自述

* 应该完成了

* 内嵌资源

* Update LocalizationHelper.cs

v2rayN/AmazTool/LocalizationHelper.cs

@@ -1,21 +1,19 @@
-using System.Globalization;
+using System.Globalization;
+using System.Reflection;
 using System.Text.Json;
 
 namespace AmazTool
 {
     public class LocalizationHelper
     {
-        private static Dictionary<string, string> languageResources = new();
+        private static Dictionary<string, string> languageResources = [];
 
         static LocalizationHelper()
         {
             // 加载语言资源
             LoadLanguageResources();
         }
 
-        /// <summary>
-        /// 加载外部 JSON 文件中的语言资源
-        /// </summary>
         private static void LoadLanguageResources()
         {
             try
@@ -26,33 +24,39 @@ private static void LoadLanguageResources()
                     currentLanguage = "en-US";
                 }
 
-                string jsonFilePath = $"{currentLanguage}.json";
-                if (!File.Exists(jsonFilePath))
-                {
-                    jsonFilePath = "en-US.json";
-                }
+                string resourceName = $"AmazTool.{currentLanguage}.json";
+                var assembly = Assembly.GetExecutingAssembly();
 
-                var json = File.ReadAllText(jsonFilePath);
-                if (!string.IsNullOrEmpty(json))
+                using Stream? stream = assembly.GetManifestResourceStream(resourceName);
+                if (stream != null)
                 {
-                    languageResources = JsonSerializer.Deserialize<Dictionary<string, string>>(json) ?? new Dictionary<string, string>();
+                    using StreamReader reader = new(stream);
+
+                    var json = reader.ReadToEnd();
+
+                    if (!string.IsNullOrEmpty(json))
+                    {
+                        languageResources = JsonSerializer.Deserialize<Dictionary<string, string>>(json) ?? new Dictionary<string, string>();
+                    }
                 }
             }
+            catch (IOException ex)
+            {
+                Console.WriteLine($"Failed to read language resource file: {ex.Message}");
+            }
+            catch (JsonException ex)
+            {
+                Console.WriteLine($"Failed to parse JSON data: {ex.Message}");
+            }
             catch (Exception ex)
             {
-                Console.WriteLine($"Failed to load language resources: {ex.Message}");
-                languageResources = []; // 初始化为空字典
+                Console.WriteLine($"Unexpected error occurred: {ex.Message}");
             }
         }
 
-        /// <summary>
-        /// 获取系统当前语言的本地化字符串
-        /// </summary>
-        /// <param name="key">要翻译的关键字</param>
-        /// <returns>对应语言的本地化字符串，如果没有找到则返回关键字</returns>
         public static string GetLocalizedValue(string key)
         {
-            if (languageResources != null && languageResources.TryGetValue(key, out var translation))
+            if (languageResources.TryGetValue(key, out var translation))
             {
                 return translation;
             }