完成视频复刻和优化

core/frontend/src/routes/free-create.tsx

@@ -14,6 +14,7 @@ import {
   MAX_IMAGES,
   MAX_VIDEOS,
   MAX_VIDEO_TOTAL_SECONDS,
+  VIDEO_DURATION_SLACK,
   checkRefFile,
   isInFlight,
   type FreeMode,
@@ -280,7 +281,7 @@ export function FreeCreatePage({ modelConfigs, onNotify, onTaskSettled, onBack }
         if (check.type === "image" && counts.image >= MAX_IMAGES) { notify("error", `参考图片最多 ${MAX_IMAGES} 张`); continue; }
         if (check.type === "video" && counts.video >= MAX_VIDEOS) { notify("error", `参考视频最多 ${MAX_VIDEOS} 条`); continue; }
         if (check.type === "audio" && counts.audio >= MAX_AUDIOS) { notify("error", `参考音频最多 ${MAX_AUDIOS} 条`); continue; }
-        if (check.type === "video" && videoSeconds + (check.duration || 0) > MAX_VIDEO_TOTAL_SECONDS) {
+        if (check.type === "video" && videoSeconds + (check.duration || 0) > MAX_VIDEO_TOTAL_SECONDS + VIDEO_DURATION_SLACK) {
           notify("error", `参考视频总时长不能超过 ${MAX_VIDEO_TOTAL_SECONDS} 秒`);
           continue;
         }