fix: 修正故事板历史时间时区

core/frontend/src/routes/pipeline.tsx

@@ -45,6 +45,20 @@ function generationTaskErrorText(error: unknown, fallback: string): string {
   const presentation = presentGenerationError(error);
   return `${presentation.title}：${presentation.description}`;
 }
+
+// API 时间统一以 UTC ISO 字符串返回；项目工作台固定按中国时区展示，避免直接截取 UTC 的 HH:mm。
+function formatShanghaiClock(iso?: string): string {
+  if (!iso) return "--:--";
+  const date = new Date(iso);
+  if (Number.isNaN(date.getTime())) return "--:--";
+  return new Intl.DateTimeFormat("zh-CN", {
+    timeZone: "Asia/Shanghai",
+    hour: "2-digit",
+    minute: "2-digit",
+    hourCycle: "h23",
+  }).format(date);
+}
+
 // 毫秒 → mm:ss(时间轴 / 字幕展示)
 function fmtMs(ms: number): string {
   const total = Math.max(0, Math.round(ms / 1000));
@@ -3374,7 +3388,7 @@ export function PipelinePage(props: {
                           return (
                             <div className={`sb-history-thumb${isViewed ? " current" : ""}`} key={ver.id} data-vi={ver.id} role="button" tabIndex={0} title={isAdopted ? "当前采用版(点击预览)" : "点击预览此版本"} onClick={() => setSbViewVerId(ver.id)} onKeyDown={(event) => { if (event.key === "Enter" || event.key === " ") { event.preventDefault(); setSbViewVerId(ver.id); } }}>
                               <div className={`placeholder${cover ? " has-mock-media" : ""}`} style={cover ? mediaStyle(cover) : undefined}><span className="ph-frame">{isAdopted ? "采用" : "历史"}</span></div>
-                              <div className="ts">{(ver.created_at || "").slice(11, 16) || "--:--"}</div>
+                              <div className="ts">{formatShanghaiClock(ver.created_at)}</div>
                             </div>
                           );
                         }) : <span className="muted-2 mono" style={{ fontSize: "12px" }}>// 本场暂无历史</span>}