fix(security): PR 审查整改 - setWindowOpenHandler 域名白名单 / openWebsite 协议校验 / 批量云端安装并发控制

- electron/main/index.ts: setWindowOpenHandler 增加 ALLOWED_EXTERNAL_HOSTS 域名后缀白名单，仅可信 https 域名可 shell.openExternal（阻断项2）
- AppDetailModal.vue: openWebsite 增加 http/https 协议校验 + noopener,noreferrer（改进项5）
- useAccountSync.ts: installCloudItems 改为分批(BATCH_SIZE=3) + Promise.allSettled 错误收集（改进项2）
- 审查误报/未改动项已贴代码实证：阻断1 v-html 已用 textContent 转义；改进3 resolveCloudInstallCandidate 已有降级匹配链；改进4 单窗口无 HMR 不重复注册；改进1 暂停/恢复主进程无 handler 维持 TODO

src/components/AppDetailModal.vue

@@ -644,8 +644,15 @@ const closeMetaModal = () => {
 };
 
 const openWebsite = (url: string) => {
-  if (url) {
-    window.open(url, "_blank");
+  if (!url) return;
+  try {
+    const parsed = new URL(url);
+    // 仅允许 http/https 协议，杜绝 javascript:/data: 等危险协议
+    if (parsed.protocol === "https:" || parsed.protocol === "http:") {
+      window.open(url, "_blank", "noopener,noreferrer");
+    }
+  } catch {
+    // 无效 URL，不打开
   }
 };
 

src/composables/useAccountSync.ts

@@ -319,11 +319,24 @@ const openRestoreFromAccount = async (): Promise<void> => {
   }
 };
 
-const installCloudItems = (items: SyncedAppListItem[]): void => {
-  for (const item of items) {
-    const app = resolveCloudInstallCandidate(item, apps.value);
-    if (!app) continue;
-    void onDetailInstall(app);
+// 批量云端安装：分批触发（每批 3 个），收集每个安装的结果并反馈失败项。
+// onDetailInstall 内部本身已串行排队，这里仅限制"同时发起"的并发，避免一次注入大量任务。
+const installCloudItems = async (items: SyncedAppListItem[]): Promise<void> => {
+  const BATCH_SIZE = 3;
+  let failedCount = 0;
+  for (let i = 0; i < items.length; i += BATCH_SIZE) {
+    const batch = items.slice(i, i + BATCH_SIZE);
+    const results = await Promise.allSettled(
+      batch.map(async (item) => {
+        const app = resolveCloudInstallCandidate(item, apps.value);
+        if (!app) return;
+        await onDetailInstall(app);
+      }),
+    );
+    failedCount += results.filter((r) => r.status === "rejected").length;
+  }
+  if (failedCount > 0) {
+    console.error(`批量云端安装中有 ${failedCount} 项失败`);
   }
   showRestoreModal.value = false;
 };