fix: 封面API去除body重复template_id+片段切换后重启tick (#1434)

1. cover API: body不再发送template_id，只保留query params
2. useSegmentScheduler tick: 片段切换后setIsPlaying(true)+重启RAF循环

apps/web/src/api/generation/cover.ts

@@ -23,13 +23,9 @@ export async function generateCover(
   templateId: string,
   data: GenerateCoverRequest,
 ): Promise<GenerateCoverResponse> {
-  const response = await apiClient.post<GenerateCoverResponse>(
-    "/generation/generate-cover",
-    { ...data, template_id: templateId },
-    {
-      timeout: 300000,
-      params: { template_id: templateId },
-    },
-  )
+  const response = await apiClient.post<GenerateCoverResponse>("/generation/generate-cover", data, {
+    timeout: 300000,
+    params: { template_id: templateId },
+  })
   return response.data
 }

apps/web/src/pages/generate/hooks/useSegmentScheduler.ts

@@ -184,6 +184,8 @@ export function useSegmentScheduler(segments: PlaybackSegment[]): SegmentSchedul
       const nextIndex = currentSegmentIndex + 1
       if (nextIndex < segments.length) {
         switchToSegment(nextIndex).then(() => {
+          setIsPlaying(true)
+          rafRef.current = requestAnimationFrame(tick)
           const nextVideo = videoRefs.current[nextIndex]
           if (nextVideo) {
             nextVideo