Move library collections as a group and map v2 identity refs.

Collapsed collection actions now move, rename, delete, and rerun every part so chains stay together. Identity mode follows the v2u3 Ref2VA picture wiring.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/utils/pending.ts

@@ -25,6 +25,8 @@ export interface PendingJob {
   familyId?: string
   parentClipId?: string
   chainIndex?: number
+  stillId?: string
+  sound?: boolean
 }
 
 function pendingRoot() {
@@ -142,7 +144,9 @@ export async function completePendingIfReady(pending: PendingJob) {
     comfyFilename: video.filename,
     familyId: pending.familyId,
     parentClipId: pending.parentClipId,
-    chainIndex: pending.chainIndex
+    chainIndex: pending.chainIndex,
+    stillId: pending.stillId,
+    sound: pending.sound
   })
   await purgeComfyArtifacts({ video, imageName: pending.imageName, imageSubfolder: pending.imageSubfolder, promptId: pending.promptId })
   deletePendingJob(pending.jobId)