多轮审查和修复

Assets/Scripts/Support/Localization/LanguageManagerSO.cs

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+using UnityEngine;
+
+namespace BaseGames.Localization
+{
+    /// <summary>
+    /// 语言设置持久化 SO（架构 16_SupportingModules §4.1）。
+    /// 支持的语言列表由设计师填写；当前语言持久化到 PlayerPrefs。
+    /// </summary>
+    [CreateAssetMenu(menuName = "Settings/LanguageManager", fileName = "SET_LanguageManager")]
+    public class LanguageManagerSO : ScriptableObject
+    {
+        private const string PrefsKey = "game_language";
+
+        [Tooltip("游戏支持的语言 locale code 列表（如 zh-CN、en-US）")]
+        public string[] supportedLocales = { "zh-CN", "en-US" };
+
+        [Tooltip("默认语言 locale code")]
+        public string defaultLocale = "zh-CN";
+
+        public string CurrentLocale { get; private set; }
+
+        private void OnEnable()
+        {
+            CurrentLocale = PlayerPrefs.GetString(PrefsKey, defaultLocale);
+        }
+
+        /// <summary>设置当前语言并持久化到 PlayerPrefs，同时通知 Unity Localization（若已安装）。</summary>
+        public void SetLocale(string localeCode)
+        {
+            CurrentLocale = localeCode;
+            PlayerPrefs.SetString(PrefsKey, localeCode);
+            PlayerPrefs.Save();
+            ApplyLocale(localeCode);
+        }
+
+        /// <summary>初始化时应用已保存语言。</summary>
+        public void ApplySaved() => ApplyLocale(CurrentLocale);
+
+        private static void ApplyLocale(string localeCode)
+        {
+#if UNITY_LOCALIZATION
+            var locales = UnityEngine.Localization.Settings.LocalizationSettings.AvailableLocales;
+            var locale  = locales?.GetLocale(new UnityEngine.Localization.LocaleIdentifier(localeCode));
+            if (locale != null)
+                UnityEngine.Localization.Settings.LocalizationSettings.SelectedLocale = locale;
+#else
+            Debug.Log($"[LanguageManager] 语言设为 {localeCode}（Unity Localization 包未安装，仅记录 PlayerPrefs）。");
+#endif
+        }
+    }
+}