Ship MiniMax v2 identity refs and Qwen sidecar edits.

Keep v1 as the default video graph, relay image edits to the Qwen Lightning box, and keep /api/health up if one Comfy host is unset.

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

server/api/generate.post.ts

@@ -83,9 +83,14 @@ 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 }[] = []
   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' && part.filename && part.data?.length) {
+      if (referenceImages.length < 4) {
+        referenceImages.push({ filename: part.filename, data: part.data, type: part.type })
+      }
     } else if (part.name && part.data) {
       fields[part.name] = part.data.toString('utf8')
     }
@@ -99,6 +104,8 @@ export default defineEventHandler(async (event) => {
     throw createError({ statusCode: 400, statusMessage: 'A motion prompt is required' })
   }
   const extensions = parseExtensions(fields.extensions)
+  const workflow = parseVideoWorkflow(fields.workflow)
+  const useIdentityRefs = workflow === 'v2' && fields.useIdentityRefs === 'true' && referenceImages.length > 0
 
   const { width, height } = resolveOutputSize(fields.aspect, image.data, Number(fields.width), Number(fields.height))
   const turbo = fields.turbo !== 'false'
@@ -170,7 +177,8 @@ export default defineEventHandler(async (event) => {
     chainStep: 1,
     chainTotal,
     chainLabel: extensions.length ? 'Initial' : undefined,
-    familyId: crypto.randomUUID()
+    familyId: crypto.randomUUID(),
+    workflow
   }
   emitChainJob(job, { type: 'status', message: 'Checking ComfyUI...', progress: 1 })
 
@@ -188,7 +196,11 @@ export default defineEventHandler(async (event) => {
     fps,
     samplerName,
     scheduler,
-    extensions
+    extensions,
+    workflow,
+    duration: durationSeconds,
+    useIdentityRefs,
+    referenceImages
   }).catch(async (error) => {
     removeExtendTemp(job.library?.extendTmpDir)
     if (isComfyBusyTimeout(error) && job.library) {
@@ -215,7 +227,8 @@ export default defineEventHandler(async (event) => {
           fps: job.library.fps,
           samplerName: job.library.samplerName,
           scheduler: job.library.scheduler,
-          extensions: job.library.extensions
+          extensions: job.library.extensions,
+          workflow: job.library.workflow
         })
         job.library.draftId = draft.id
         job.status = 'deferred'
@@ -268,6 +281,10 @@ type GenerateParams = {
   samplerName: string
   scheduler: string
   extensions: { prompt: string; duration: number }[]
+  workflow: 'v1' | 'v2'
+  duration: number
+  useIdentityRefs: boolean
+  referenceImages: { filename: string; data: Buffer; type?: string }[]
 }
 
 async function queueMiniMax(
@@ -290,6 +307,17 @@ 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 chainIndex = job.library?.chainIndex || 0
+  if (chainIndex === 0) {
+    for (const [index, ref] of (params.referenceImages || []).entries()) {
+      const next = await uploadImage({
+        ...ref,
+        filename: `ref${index + 1}_${ref.filename || 'identity.png'}`
+      }, job.id)
+      referenceNames.push(next.name)
+    }
+  }
   if (job.library) {
     job.library.imageName = uploaded.name
     job.library.imageSubfolder = uploaded.subfolder
@@ -311,7 +339,11 @@ async function queueMiniMax(
     samplerName: params.samplerName,
     scheduler: params.scheduler,
     filenamePrefix: comfyFilenamePrefix(),
-    sound: params.sound
+    sound: params.sound,
+    workflow: params.workflow,
+    duration: params.duration,
+    useIdentityRefs: chainIndex === 0 && params.useIdentityRefs,
+    referenceImageNames: chainIndex === 0 ? referenceNames : []
   })
 
   const queued = await queuePrompt(graph, job.clientId)
@@ -432,7 +464,11 @@ async function runGeneration(
       fps: params.fps,
       samplerName: params.samplerName,
       scheduler: params.scheduler,
-      persist: isLast
+      persist: isLast,
+      workflow: params.workflow,
+      duration: ext.duration,
+      useIdentityRefs: false,
+      referenceImages: []
     })
 
     if (!isLast) {