feat(embed): photo click opens album page in a new tab (user decision 2026-09-24)

Reverts the in-host detail modal interaction: click now window.open's the album page (/a/:token?lang=, no /p/ deep link) with noopener — same target for middle-click/right-click via the real <a> href. The loader's open-photo modal code remains but is no longer triggered.

Co-Authored-By: Claude Code <noreply@anthropic.com>

apps/viewer/src/pages/EmbedPage.vue

@@ -18,7 +18,6 @@ import { useRoute } from 'vue-router';
 import { useI18n } from 'vue-i18n';
 import { useEmbedFeed } from '../embed/useEmbedFeed';
 import { clampEmbedIntervalMs, EMBED_CAROUSEL_DEFAULT_MS } from '../embed/feed';
-import { postEmbedMessage } from '../embed/postMessage';
 import EmbedCarousel from './embed/EmbedCarousel.vue';
 import EmbedStream from './embed/EmbedStream.vue';
 
@@ -118,28 +117,13 @@ const albumUrl = computed(() => {
   return url.toString();
 });
 
-/** v2 照片深链构造器（真实 <a> href；受控打开同 openPhoto）。 */
-function streamPhotoUrl(photoId: string): string {
-  const albumToken = feed.album?.publicToken;
-  const base = albumToken ?? '';
-  const url = new URL(`/a/${encodeURIComponent(base)}/p/${encodeURIComponent(photoId)}`, window.location.origin);
-  url.searchParams.set('lang', feed.resolvedLocale ?? 'zh-CN');
-  return url.toString();
-}
-
-function openPhoto(photoId: string): void {
-  const albumToken = feed.album?.publicToken;
-  if (albumToken === undefined) return;
-  const url = new URL(`/a/${encodeURIComponent(albumToken)}/p/${encodeURIComponent(photoId)}`, window.location.origin);
-  url.searchParams.set('lang', feed.resolvedLocale ?? 'zh-CN');
-  // 宿主内弹框（用户决策 2026-09-23）：有父窗（loader 嵌入）→ postMessage
-  // 由宿主弹框内嵌详情页，不跳出当前网站；无父窗（直接打开/预览）→ 新标签
-  // noopener（sandbox allow-popups-to-escape-sandbox 配合）。
-  if (window.parent !== window) {
-    postEmbedMessage({ photoliveEmbed: true, type: 'open-photo', url: url.toString() });
-    return;
-  }
-  window.open(url, '_blank', 'noopener,noreferrer');
+// 用户决策 2026-09-24：点击照片 → 新标签页打开观众页（相册页），不定位到
+// 具体照片、不在当前页弹框——v1 与 v2 统一该语义（此前的宿主内弹框与照片
+// 深链均退役；loader v2 的 open-photo 弹框逻辑保留但不再被触发）。
+function openPhoto(): void {
+  if (albumUrl.value === null) return;
+  // noopener：新标签页不持有 opener（sandbox allow-popups-to-escape-sandbox 配合）。
+  window.open(albumUrl.value, '_blank', 'noopener,noreferrer');
 }
 </script>
 
@@ -151,7 +135,7 @@ function openPhoto(photoId: string): void {
       :photos="feed.status === 'ready' ? feed.photos : []"
       :album-token="feed.album?.publicToken ?? null"
       :album-title="feed.album?.title ?? ''"
-      :photo-url="streamPhotoUrl"
+      :photo-url="() => albumUrl ?? '#'"
       :speed="streamSpeed"
       :reactions="streamReactions"
       :active="feed.active"