fix: rename source video section title

web/components/ad-recreation-board.tsx

@@ -2088,7 +2088,7 @@ export function AdRecreationBoard({
                   <div className="flex items-center gap-2">
                     <span className="inline-flex h-7 w-7 items-center justify-center rounded-md border border-[#d6b36a]/18 bg-[#d6b36a]/10 text-[#f2d58a]"><Mic className="h-3.5 w-3.5" /></span>
                     <WorkflowStepBadge step={workflow.source} compact />
-                    <h2 className="text-[15px] font-semibold leading-tight text-white">源视频解析与参考帧</h2>
+                    <h2 className="text-[15px] font-semibold leading-tight text-white">视频拆解</h2>
                   </div>
                   <div className="mt-1 truncate text-[11px] text-white/38" title={statusMessage}>
                     {statusMessage || "下载源视频后解析音频，再抽参考帧并生成相似主体。"}