fmt

frontend/src/i18n/config.ts

@@ -73,11 +73,15 @@ i18n
   .use(initReactI18next)
   .init({
     resources,
-    fallbackLng: 'en',
+    fallbackLng: {
+      zh: ['zh-Hans'], // Map generic Chinese to Simplified Chinese
+      default: ['en'],
+    },
     defaultNS: 'common',
     debug: import.meta.env.DEV,
-    supportedLngs: SUPPORTED_I18N_CODES,
-    load: 'languageOnly', // Load 'en' instead of 'en-US' etc.
+    supportedLngs: [...SUPPORTED_I18N_CODES, 'zh'], // Include 'zh' for browser detection
+    nonExplicitSupportedLngs: true, // Accept zh -> zh-Hans mapping
+    load: 'currentOnly', // Load exact language code
 
     interpolation: {
       escapeValue: false, // React already escapes

frontend/src/i18n/languages.ts

@@ -14,7 +14,14 @@ export const UI_TO_I18N = {
   ZH_HANS: 'zh-Hans',
 } as const;
 
-const SUPPORTED_UI_LANGUAGES = ['BROWSER', 'EN', 'JA', 'ES', 'KO', 'ZH_HANS'] as const;
+const SUPPORTED_UI_LANGUAGES = [
+  'BROWSER',
+  'EN',
+  'JA',
+  'ES',
+  'KO',
+  'ZH_HANS',
+] as const;
 export const SUPPORTED_I18N_CODES = Object.values(UI_TO_I18N);
 
 const FALLBACK_ENDONYMS = {

frontend/src/i18n/locales/zh-Hans/common.json

@@ -85,4 +85,4 @@
     "errorDescription": "验证您的账户时出现问题",
     "tryAgain": "重试"
   }
-}
+}

frontend/src/i18n/locales/zh-Hans/projects.json

@@ -48,4 +48,4 @@
   "openInIDE": "在 IDE 中打开",
   "createdDate": "创建于 {{date}}",
   "copyFilesPlaceholderWithSearch": "文件路径或 glob 模式（例如：.env、config/*.json）"
-}
+}

frontend/src/i18n/locales/zh-Hans/settings.json

@@ -384,4 +384,4 @@
       }
     }
   }
-}
+}

frontend/src/i18n/locales/zh-Hans/tasks.json

@@ -428,4 +428,4 @@
       "discardChanges": "放弃更改"
     }
   }
-}
+}