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/api/generate.post.ts

@@ -83,13 +83,20 @@ export default defineEventHandler(async (event) => {
 
   const fields: Record<string, string> = {}
   let image: { filename: string; data: Buffer; type?: string } | null = null
-  const referenceImages: { filename: string; data: Buffer; type?: string }[] = []
+  const referenceImages: Array<{ filename: string; data: Buffer; type?: string } | null> = [null, null, null, null]
+  let compactRefSlot = 0
   for (const part of form) {
     if (part.name === 'image' && part.filename && part.data?.length) {
       image = { filename: part.filename, data: part.data, type: part.type }
+    } else if (part.name && /^refImage(\d)$/.test(part.name) && part.filename && part.data?.length) {
+      const slot = Number(part.name.replace('refImage', ''))
+      if (slot >= 0 && slot < 4) {
+        referenceImages[slot] = { filename: part.filename, data: part.data, type: part.type }
+      }
     } else if (part.name === 'refImage' && part.filename && part.data?.length) {
-      if (referenceImages.length < 4) {
-        referenceImages.push({ filename: part.filename, data: part.data, type: part.type })
+      if (compactRefSlot < 4) {
+        referenceImages[compactRefSlot] = { filename: part.filename, data: part.data, type: part.type }
+        compactRefSlot += 1
       }
     } else if (part.name && part.data) {
       fields[part.name] = part.data.toString('utf8')
@@ -105,7 +112,7 @@ export default defineEventHandler(async (event) => {
   }
   const extensions = parseExtensions(fields.extensions)
   const workflow = parseVideoWorkflow(fields.workflow)
-  const useIdentityRefs = workflow === 'v2' && fields.useIdentityRefs === 'true' && referenceImages.length > 0
+  const useIdentityRefs = workflow === 'v2' && fields.useIdentityRefs === 'true'
 
   const { width, height } = resolveOutputSize(fields.aspect, image.data, Number(fields.width), Number(fields.height))
   const turbo = fields.turbo !== 'false'
@@ -134,15 +141,17 @@ export default defineEventHandler(async (event) => {
   const destFolder = library.folders.find(folder => folder.id === folderId)
   const folderLocked = Boolean(destFolder?.protected && !destFolder.unlocked)
   assertFolderExists(event, folderId)
-  const still = await saveStill({
-    ownerKey,
-    folderId,
-    filename: image.filename,
-    data: image.data,
-    width,
-    height,
-    hideInput
-  })
+  const still = isPipelineFrameFilename(image.filename)
+    ? null
+    : await saveStill({
+      ownerKey,
+      folderId,
+      filename: image.filename,
+      data: image.data,
+      width,
+      height,
+      hideInput
+    })
 
   const chainTotal = 1 + extensions.length
   const job = createJob()
@@ -167,9 +176,9 @@ export default defineEventHandler(async (event) => {
     fps,
     samplerName,
     scheduler,
-    thumb: image.data,
-    stillId: still.id,
-    stillFilename: still.filename,
+    thumb: isPipelineFrameFilename(image.filename) ? undefined : image.data,
+    stillId: still?.id,
+    stillFilename: still?.filename,
     duration: durationSeconds,
     sound,
     draftId: (fields.draftId || '').trim() || undefined,
@@ -285,7 +294,7 @@ type GenerateParams = {
   workflow: 'v1' | 'v2'
   duration: number
   useIdentityRefs: boolean
-  referenceImages: { filename: string; data: Buffer; type?: string }[]
+  referenceImages: Array<{ filename: string; data: Buffer; type?: string } | null>
 }
 
 async function queueMiniMax(
@@ -308,15 +317,16 @@ async function queueMiniMax(
     : 'Queueing MiniMax H3 job...'
   emitChainJob(job, { type: 'status', message: uploading, progress: 4 })
   const uploaded = await uploadImage(params.image, job.id)
-  const referenceNames: string[] = []
+  const referenceNames: string[] = ['', '', '', '']
   const chainIndex = job.library?.chainIndex || 0
   if (chainIndex === 0) {
     for (const [index, ref] of (params.referenceImages || []).entries()) {
+      if (!ref?.data?.length) continue
       const next = await uploadImage({
         ...ref,
         filename: `ref${index + 1}_${ref.filename || 'identity.png'}`
       }, job.id)
-      referenceNames.push(next.name)
+      referenceNames[index] = next.name
     }
   }
   if (job.library) {
@@ -378,7 +388,9 @@ async function queueMiniMax(
       extendPart1Path: job.library.extendPart1Path,
       familyId: job.library.familyId,
       parentClipId: job.library.parentClipId,
-      chainIndex: job.library.chainIndex
+      chainIndex: job.library.chainIndex,
+      stillId: job.library.stillId,
+      sound: job.library.sound
     })
   }
   emitChainJob(job, { type: 'status', message: 'Job queued on ComfyUI', progress: 8 })
@@ -430,6 +442,7 @@ async function runGeneration(
     job.library.chainStep = i + 2
     job.library.chainLabel = `Extension ${i + 1}`
     job.library.extendPart1Path = undefined
+    job.library.thumb = undefined
 
     emitChainJob(job, { type: 'status', message: 'Waiting 3s buffer...', progress: 1 })
     await sleep(3000)