i18n: complete internationalization for settings panel

- Add missing translation keys for all hint texts and descriptions
- Remove all hardcoded defaultValue parameters from components
- Add translations for window behavior, directory settings, and theme settings
- Add translations for provider-related UI elements
- Improve consistency across Chinese and English translations

Translation additions:
- common.toggleTheme
- settings.windowBehaviorHint, claudeConfigDirDescription, codexConfigDirDescription
- provider.* (12 new keys)
- providerForm.* (15 new keys)
- providerPreset.* (4 new keys)

Modified files: 10
Lines changed: +132 -74

src/components/mode-toggle.tsx

@@ -22,7 +22,7 @@ export function ModeToggle() {
       <Sun className="h-4 w-4 rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
       <Moon className="absolute h-4 w-4 rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
       <span className="sr-only">
-        {t("common.toggleTheme", { defaultValue: "切换主题" })}
+        {t("common.toggleTheme")}
       </span>
     </Button>
   );

src/components/settings/AboutSection.tsx

@@ -75,9 +75,7 @@ export function AboutSection({ isPortable }: AboutSectionProps) {
     } catch (error) {
       console.error("[AboutSection] Failed to open release notes", error);
       toast.error(
-        t("settings.openReleaseNotesFailed", {
-          defaultValue: "打开更新日志失败",
-        }),
+        t("settings.openReleaseNotesFailed"),
       );
     }
   }, [t, updateInfo?.availableVersion, version]);
@@ -101,9 +99,7 @@ export function AboutSection({ isPortable }: AboutSectionProps) {
       } catch (error) {
         console.error("[AboutSection] Update failed", error);
         toast.error(
-          t("settings.updateFailed", {
-            defaultValue: "更新安装失败，已尝试打开下载页面。",
-          }),
+          t("settings.updateFailed"),
         );
         try {
           await settingsApi.checkUpdates();
@@ -122,29 +118,25 @@ export function AboutSection({ isPortable }: AboutSectionProps) {
     try {
       const available = await checkUpdate();
       if (!available) {
-        toast.success(t("settings.upToDate", { defaultValue: "已是最新版本" }));
+        toast.success(t("settings.upToDate"));
       }
     } catch (error) {
       console.error("[AboutSection] Check update failed", error);
       toast.error(
-        t("settings.checkUpdateFailed", {
-          defaultValue: "检查更新失败，请稍后重试。",
-        }),
+        t("settings.checkUpdateFailed"),
       );
     }
   }, [checkUpdate, hasUpdate, isPortable, resetDismiss, t, updateHandle]);
 
   const displayVersion =
-    version ?? t("common.unknown", { defaultValue: "未知" });
+    version ?? t("common.unknown");
 
   return (
     <section className="space-y-4">
       <header className="space-y-1">
         <h3 className="text-sm font-medium">{t("common.about")}</h3>
         <p className="text-xs text-muted-foreground">
-          {t("settings.aboutHint", {
-            defaultValue: "查看版本信息与更新状态。",
-          })}
+          {t("settings.aboutHint")}
         </p>
       </header>
 
@@ -163,9 +155,7 @@ export function AboutSection({ isPortable }: AboutSectionProps) {
             {isPortable ? (
               <p className="inline-flex items-center gap-1 text-xs text-muted-foreground">
                 <Info className="h-3 w-3" />
-                {t("settings.portableMode", {
-                  defaultValue: "当前为便携版，更新需手动下载。",
-                })}
+                {t("settings.portableMode")}
               </p>
             ) : null}
           </div>
@@ -190,20 +180,19 @@ export function AboutSection({ isPortable }: AboutSectionProps) {
               {isDownloading ? (
                 <span className="inline-flex items-center gap-2">
                   <Loader2 className="h-4 w-4 animate-spin" />
-                  {t("settings.updating", { defaultValue: "安装更新..." })}
+                  {t("settings.updating")}
                 </span>
               ) : hasUpdate ? (
                 <span className="inline-flex items-center gap-2">
                   <Download className="h-4 w-4" />
                   {t("settings.updateTo", {
-                    defaultValue: "更新到 {{version}}",
                     version: updateInfo?.availableVersion ?? "",
                   })}
                 </span>
               ) : isChecking ? (
                 <span className="inline-flex items-center gap-2">
                   <RefreshCw className="h-4 w-4 animate-spin" />
-                  {t("settings.checking", { defaultValue: "检查中..." })}
+                  {t("settings.checking")}
                 </span>
               ) : (
                 t("settings.checkForUpdates")
@@ -216,7 +205,6 @@ export function AboutSection({ isPortable }: AboutSectionProps) {
           <div className="rounded-md bg-muted/40 px-3 py-2 text-xs text-muted-foreground">
             <p>
               {t("settings.updateAvailable", {
-                defaultValue: "检测到新版本：{{version}}",
                 version: updateInfo.availableVersion,
               })}
             </p>

src/components/settings/DirectorySettings.tsx

@@ -57,9 +57,7 @@ export function DirectorySettings({
 
       <DirectoryInput
         label={t("settings.claudeConfigDir")}
-        description={t("settings.claudeConfigDirDescription", {
-          defaultValue: "覆盖 Claude 配置目录 (settings.json)。",
-        })}
+        description={t("settings.claudeConfigDirDescription")}
         value={claudeDir}
         resolvedValue={resolvedDirs.claude}
         placeholder={t("settings.browsePlaceholderClaude")}
@@ -70,9 +68,7 @@ export function DirectorySettings({
 
       <DirectoryInput
         label={t("settings.codexConfigDir")}
-        description={t("settings.codexConfigDirDescription", {
-          defaultValue: "覆盖 Codex 配置目录。",
-        })}
+        description={t("settings.codexConfigDirDescription")}
         value={codexDir}
         resolvedValue={resolvedDirs.codex}
         placeholder={t("settings.browsePlaceholderCodex")}

src/components/settings/ImportExportSection.tsx

@@ -47,9 +47,7 @@ export function ImportExportSection({
       <header className="space-y-1">
         <h3 className="text-sm font-medium">{t("settings.importExport")}</h3>
         <p className="text-xs text-muted-foreground">
-          {t("settings.importExportHint", {
-            defaultValue: "导入导出 cc-switch 配置，便于备份或迁移。",
-          })}
+          {t("settings.importExportHint")}
         </p>
       </header>
 
@@ -92,7 +90,7 @@ export function ImportExportSection({
             {selectedFile ? (
               <Button type="button" variant="ghost" onClick={onClear}>
                 <XCircle className="mr-2 h-4 w-4" />
-                {t("common.clear", { defaultValue: "清除" })}
+                {t("common.clear")}
               </Button>
             ) : null}
           </div>
@@ -103,9 +101,7 @@ export function ImportExportSection({
             </p>
           ) : (
             <p className="text-xs text-muted-foreground">
-              {t("settings.noFileSelected", {
-                defaultValue: "尚未选择配置文件。",
-              })}
+              {t("settings.noFileSelected")}
             </p>
           )}
         </div>
@@ -147,7 +143,7 @@ function ImportStatusMessage({
         <div>
           <p className="font-medium">{t("settings.importing")}</p>
           <p className="text-muted-foreground">
-            {t("common.loading", { defaultValue: "正在处理..." })}
+            {t("common.loading")}
           </p>
         </div>
       </div>
@@ -164,10 +160,10 @@ function ImportStatusMessage({
           <p className="font-medium">{t("settings.importSuccess")}</p>
           {backupId ? (
             <p className="text-xs">
-              {t("settings.backupId", { defaultValue: "备份 ID" })}: {backupId}
+              {t("settings.backupId")}: {backupId}
             </p>
           ) : null}
-          <p>{t("settings.autoReload", { defaultValue: "即将刷新列表。" })}</p>
+          <p>{t("settings.autoReload")}</p>
         </div>
       </div>
     );
@@ -175,14 +171,14 @@ function ImportStatusMessage({
 
   const message =
     errorMessage ||
-    t("settings.importFailed", { defaultValue: "导入失败，请重试。" });
+    t("settings.importFailed");
 
   return (
     <div className={`${baseClass} border-red-200 bg-red-100/70 text-red-600`}>
       <AlertCircle className="mt-0.5 h-4 w-4" />
       <div className="space-y-1">
         <p className="font-medium">
-          {t("settings.importFailed", { defaultValue: "导入失败" })}
+          {t("settings.importFailed")}
         </p>
         <p>{message}</p>
       </div>

src/components/settings/LanguageSettings.tsx

@@ -15,9 +15,7 @@ export function LanguageSettings({ value, onChange }: LanguageSettingsProps) {
       <header className="space-y-1">
         <h3 className="text-sm font-medium">{t("settings.language")}</h3>
         <p className="text-xs text-muted-foreground">
-          {t("settings.languageHint", {
-            defaultValue: "切换后立即预览界面语言，保存后永久生效。",
-          })}
+          {t("settings.languageHint")}
         </p>
       </header>
       <div className="inline-flex gap-1 rounded-md border border-border bg-background p-1">

src/components/settings/SettingsDialog.tsx

@@ -143,9 +143,7 @@ export function SettingsDialog({
     setShowRestartPrompt(false);
     if (import.meta.env.DEV) {
       toast.success(
-        t("settings.devModeRestartHint", {
-          defaultValue: "开发模式下不支持自动重启，请手动重新启动应用。",
-        }),
+        t("settings.devModeRestartHint"),
       );
       closeAfterSave();
       return;
@@ -156,9 +154,7 @@ export function SettingsDialog({
     } catch (error) {
       console.error("[SettingsDialog] Failed to restart app", error);
       toast.error(
-        t("settings.restartFailed", {
-          defaultValue: "应用重启失败，请手动关闭后重新打开。",
-        }),
+        t("settings.restartFailed"),
       );
     } finally {
       closeAfterSave();
@@ -187,10 +183,10 @@ export function SettingsDialog({
             >
               <TabsList className="grid w-full grid-cols-3">
                 <TabsTrigger value="general">
-                  {t("settings.tabGeneral", { defaultValue: "通用" })}
+                  {t("settings.tabGeneral")}
                 </TabsTrigger>
                 <TabsTrigger value="advanced">
-                  {t("settings.tabAdvanced", { defaultValue: "高级" })}
+                  {t("settings.tabAdvanced")}
                 </TabsTrigger>
                 <TabsTrigger value="about">{t("common.about")}</TabsTrigger>
               </TabsList>
@@ -262,7 +258,7 @@ export function SettingsDialog({
             {isSaving ? (
               <span className="inline-flex items-center gap-2">
                 <Loader2 className="h-4 w-4 animate-spin" />
-                {t("settings.saving", { defaultValue: "正在保存..." })}
+                {t("settings.saving")}
               </span>
             ) : (
               <>
@@ -284,9 +280,7 @@ export function SettingsDialog({
           </DialogHeader>
           <div className="px-6">
             <p className="text-sm text-muted-foreground">
-              {t("settings.restartRequiredMessage", {
-                defaultValue: "配置目录已变更，需要重启应用生效。",
-              })}
+              {t("settings.restartRequiredMessage")}
             </p>
           </div>
           <DialogFooter>

src/components/settings/ThemeSettings.tsx

@@ -13,9 +13,7 @@ export function ThemeSettings() {
       <header className="space-y-1">
         <h3 className="text-sm font-medium">{t("settings.theme")}</h3>
         <p className="text-xs text-muted-foreground">
-          {t("settings.themeHint", {
-            defaultValue: "选择应用的外观主题，立即生效。",
-          })}
+          {t("settings.themeHint")}
         </p>
       </header>
       <div className="inline-flex gap-1 rounded-md border border-border bg-background p-1">
@@ -24,21 +22,21 @@ export function ThemeSettings() {
           onClick={() => setTheme("light")}
           icon={Sun}
         >
-          {t("settings.themeLight", { defaultValue: "浅色" })}
+          {t("settings.themeLight")}
         </ThemeButton>
         <ThemeButton
           active={theme === "dark"}
           onClick={() => setTheme("dark")}
           icon={Moon}
         >
-          {t("settings.themeDark", { defaultValue: "深色" })}
+          {t("settings.themeDark")}
         </ThemeButton>
         <ThemeButton
           active={theme === "system"}
           onClick={() => setTheme("system")}
           icon={Monitor}
         >
-          {t("settings.themeSystem", { defaultValue: "跟随系统" })}
+          {t("settings.themeSystem")}
         </ThemeButton>
       </div>
     </section>

src/components/settings/WindowSettings.tsx

@@ -15,9 +15,7 @@ export function WindowSettings({ settings, onChange }: WindowSettingsProps) {
       <header className="space-y-1">
         <h3 className="text-sm font-medium">{t("settings.windowBehavior")}</h3>
         <p className="text-xs text-muted-foreground">
-          {t("settings.windowBehaviorHint", {
-            defaultValue: "配置窗口最小化与 Claude 插件联动策略。",
-          })}
+          {t("settings.windowBehaviorHint")}
         </p>
       </header>