perf(core): 资产预览改 TOS 公读直链 + 通知只取首页,减刷新开销与缓存失效

- 资产 preview_url 从「逐图签发预签名 URL」改为虚拟主机式公读直链
  (https://{bucket}.{host}/{key})。桶公读已验证免签可访问;直链稳定可被浏览器/CDN
  缓存,而签名链每次都变、1h 过期反而打不到缓存。boto3 也移出序列化热路径。
- allNotifications 不再逐页翻全部(原 O(N) 随消息增长拖慢每次刷新),只取首页 100 条
  (侧边栏徽标 unread_count + 团队动态仅展示最近 6 条已足够);「共 N」改用后端真实 count。
- perf-probe:page_size 由 API 级硬闸确定性守住后,浏览器端「资产翻页」降为提示
  (翻 1~2 页是资产真超 200 的合法分页,仅 ≥3 页才疑似 page_size 失效)。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

core/frontend/src/App.tsx

@@ -110,6 +110,7 @@ export function App() {
   const [ledgers, setLedgers] = useState<Ledger[]>([]);
   const [billingTrend, setBillingTrend] = useState<BillingTrend | null>(null);
   const [notifications, setNotifications] = useState<Notification[]>([]);
+  const [notificationTotal, setNotificationTotal] = useState(0); // 后端真实总数(团队动态「共 N」用,与已加载的近期 100 条区分)
   const [unreadCount, setUnreadCount] = useState(0);
   const [projectDetail, setProjectDetail] = useState<Project | null>(null);
   const [exportResult, setExportResult] = useState<ExportPoll | null>(null);
@@ -162,6 +163,7 @@ export function App() {
     setBillingTrend(trendData);
     if (notificationData) {
       setNotifications(notificationData.results);
+      setNotificationTotal(notificationData.count);
       setUnreadCount(notificationData.unread_count);
     }
     setActiveProjectId((current) => current || projectData.results[0]?.id || "");
@@ -214,6 +216,7 @@ export function App() {
     const data = await api.allNotifications().catch(() => null);
     if (data) {
       setNotifications(data.results);
+      setNotificationTotal(data.count);
       setUnreadCount(data.unread_count);
     }
   }, []);
@@ -674,6 +677,7 @@ export function App() {
             members={teamMembers}
             billing={billing}
             notifications={notifications}
+            notificationTotal={notificationTotal}
             navigate={navigate}
             onCreateMember={(payload) => action(() => api.createTeamMember(payload), "成员账户已创建")}
             onUpdateMember={(id, payload) => action(() => api.updateTeamMember(id, payload), "成员已更新")}
@@ -771,7 +775,7 @@ export function App() {
           }, "故事板已生成")
         }
         onAdoptBaseAsset={(groupId, assetId) => action(() => api.adoptBaseAsset(pipelineProject.id, { group_id: groupId, asset_id: assetId }), "已采用该候选")}
-        onAttachBaseAsset={(groupId, assetId) => action(() => api.attachBaseAsset(pipelineProject.id, { group_id: groupId, asset_id: assetId }), "已替换为所选演员")}
+        onAttachBaseAsset={(target, assetId) => action(() => api.attachBaseAsset(pipelineProject.id, { ...target, asset_id: assetId }), "已替换为所选演员")}
         onGenerateTriview={async (portraitAssetId) => {
           // 异步:image_edit 慢出图在 worker 跑,轮询期间整站不卡;出图后刷新即见三视图
           const assetId = await submitAndPollAsset(() => api.generateTriview(pipelineProject.id, { portrait_asset_id: portraitAssetId }), "三视图已据立绘生成");
@@ -784,8 +788,11 @@ export function App() {
           fd.append("name", file.name);
           fd.append("asset_type", "image");
           fd.append("category", "person");
-          return action(() => api.uploadAsset(fd), "演员已保存到演员库");
+          // 返回上传后的 Asset(供添加人物工作台进右侧栏做三视图/命名)
+          return action(() => api.uploadAsset(fd), "");
         }}
+        // 流程步骤4 · 添加人物工作台命名:把名字写回该人物资产
+        onRenameActor={(assetId, name) => action(() => api.updateAsset(assetId, { name }), "")}
         onSkipStoryboard={() => action(() => api.skipStoryboard(pipelineProject.id), "已跳过故事板")}
         onSubmitVideo={(segmentId, prompt) => action(() => api.submitVideo(pipelineProject.id, { video_segment_id: segmentId, prompt }), "视频片段已提交,生成中…")}
         onSubmitAllVideos={(prompt) =>