fix(i18n): extract new Chinese keys and implement dynamic localization for footer/updates/tray menu

frontend/src/state/appState.js

@@ -1,6 +1,7 @@
 import { computed, reactive, watchSyncEffect } from "vue";
 import { Events } from "@wailsio/runtime";
 import dayjs from "dayjs";
+import { getLocale } from "@/i18n/runtime";
 import {
   checkForUpdates,
   getAppVersion,
@@ -995,6 +996,53 @@ export const appViewState = reactive({
   }),
 });
 
+function localizeUpdateMessage(msg) {
+  if (!msg) return "";
+  if (msg.includes("当前已是最新版本")) {
+    const match = msg.match(/v?([0-9]+\.[0-9]+\.[0-9]+)/);
+    const version = match ? match[1] : appState.appVersion || "...";
+    const locale = getLocale ? getLocale() : "zh-CN";
+    if (locale === "en-US") {
+      return `You are already on the latest version (v${version}).`;
+    }
+    if (locale === "ja-JP") {
+      return `すでに最新バージョン（v${version}）です。`;
+    }
+    return `当前已是最新版本（v${version}）。`;
+  }
+  return msg;
+}
+
+function localizeReadyContent() {
+  const locale = getLocale ? getLocale() : "zh-CN";
+  const version = appState.updateVersion || appState.appVersion || "...";
+  const date = formatReleaseDate(appState.updateReleaseDate);
+  const notes = appState.updateReleaseNotes || "";
+
+  if (locale === "en-US") {
+    return [
+      `Version: v${version}`,
+      `Release Date: ${date}`,
+      "",
+      notes || "No release notes",
+    ].join("\n");
+  }
+  if (locale === "ja-JP") {
+    return [
+      `バージョン: v${version}`,
+      `リリース日: ${date}`,
+      "",
+      notes || "リリースノートはありません",
+    ].join("\n");
+  }
+  return [
+    `版本：v${version}`,
+    `发布时间：${date}`,
+    "",
+    notes || "无更新说明",
+  ].join("\n");
+}
+
 export const updateViewState = reactive({
   footerDownloading: computed(() => appState.updateState === "downloading"),
   footerBusy: computed(() => ["checking", "installing"].includes(appState.updateState)),
@@ -1004,36 +1052,54 @@ export const updateViewState = reactive({
     width: `${Math.max(0, Math.min(100, appState.updateProgressPercent || 0))}%`,
   })),
   promptTitle: computed(() => {
+    const locale = getLocale ? getLocale() : "zh-CN";
     switch (appState.updatePromptKind) {
       case "ready":
+        if (locale === "en-US") return "New Version Available";
+        if (locale === "ja-JP") return "新しいバージョンがあります";
         return "发现新版本";
       case "error":
+        if (locale === "en-US") return "Update Failed";
+        if (locale === "ja-JP") return "アップデートに失敗しました";
         return "更新失败";
       default:
+        if (locale === "en-US") return "Check for Updates";
+        if (locale === "ja-JP") return "アップデートを確認";
         return "检查更新";
     }
   }),
   promptContent: computed(() => {
     switch (appState.updatePromptKind) {
       case "ready":
-        return [
-          `版本：v${appState.updateVersion || appState.appVersion || "..."}`,
-          `发布时间：${formatReleaseDate(appState.updateReleaseDate)}`,
-          "",
-          appState.updateReleaseNotes || "无更新说明",
-        ].join("\n");
+        return localizeReadyContent();
       case "error":
-        return appState.updateError || appState.updateMessage || GENERIC_SERVICE_ERROR;
+        return appState.updateError || localizeUpdateMessage(appState.updateMessage) || GENERIC_SERVICE_ERROR;
       default:
-        return appState.updateMessage || `当前已是最新版本（v${appState.appVersion || "..."}）。`;
+        return localizeUpdateMessage(appState.updateMessage) || localizeUpdateMessage(`当前已是最新版本（v${appState.appVersion || "..."}）。`);
     }
   }),
-  promptConfirmText: computed(() =>
-    appState.updatePromptKind === "ready" ? "立即重启更新" : "确定",
-  ),
-  promptCancelText: computed(() =>
-    appState.updatePromptKind === "ready" ? "稍后" : "取消",
-  ),
+  promptConfirmText: computed(() => {
+    const locale = getLocale ? getLocale() : "zh-CN";
+    if (appState.updatePromptKind === "ready") {
+      if (locale === "en-US") return "Restart to Update";
+      if (locale === "ja-JP") return "再起動して更新";
+      return "立即重启更新";
+    }
+    if (locale === "en-US") return "OK";
+    if (locale === "ja-JP") return "OK";
+    return "确定";
+  }),
+  promptCancelText: computed(() => {
+    const locale = getLocale ? getLocale() : "zh-CN";
+    if (appState.updatePromptKind === "ready") {
+      if (locale === "en-US") return "Later";
+      if (locale === "ja-JP") return "後で";
+      return "稍后";
+    }
+    if (locale === "en-US") return "Cancel";
+    if (locale === "ja-JP") return "キャンセル";
+    return "取消";
+  }),
   promptShowCancel: computed(() => appState.updatePromptKind === "ready"),
 });