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/watch.ts

@@ -183,7 +183,9 @@ export function watchComfyJob(job: Job, options: { persist?: boolean } = {}): Pr
               hideThumbnail: job.library.hideThumbnail,
               hideInput: job.library.hideInput,
               video: buffer,
-              thumb: job.library.thumb,
+              thumb: (job.library.parentClipId || (job.library.chainIndex || 0) > 0 || /last[\s._-]*frame/i.test(job.library.imageName || ''))
+                ? undefined
+                : job.library.thumb,
               comfyFilename: video.filename,
               cfg: job.library.cfg,
               fps: job.library.fps,
@@ -192,7 +194,9 @@ export function watchComfyJob(job: Job, options: { persist?: boolean } = {}): Pr
               familyId: job.library.familyId || (job.library.familyId = crypto.randomUUID()),
               parentClipId: job.library.parentClipId,
               chainIndex: job.library.chainIndex,
-              workflow: job.library.workflow
+              workflow: job.library.workflow,
+              stillId: job.library.stillId,
+              sound: job.library.sound
             })
             job.clipId = clip.id
             job.savedPromptId = job.promptId