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/utils/library.ts

@@ -38,6 +38,7 @@ export interface LibraryClip {
   familyId?: string
   parentClipId?: string
   chainIndex?: number
+  workflow?: 'v1' | 'v2'
 }
 
 export interface LibraryStill {
@@ -89,6 +90,7 @@ export interface RetryDraft {
   samplerName?: string
   scheduler?: string
   extensions?: QueuedExtension[]
+  workflow?: 'v1' | 'v2'
 }
 
 interface Catalog {
@@ -715,6 +717,7 @@ export async function saveRetryDraft(params: {
   samplerName?: string
   scheduler?: string
   extensions?: QueuedExtension[]
+  workflow?: 'v1' | 'v2'
 }) {
   return mutate(params.ownerKey, (catalog) => {
     const existing = params.id ? catalog.drafts.find(item => item.id === params.id) : undefined
@@ -740,7 +743,8 @@ export async function saveRetryDraft(params: {
       fps: params.fps,
       samplerName: params.samplerName,
       scheduler: params.scheduler,
-      extensions: params.extensions?.length ? params.extensions : undefined
+      extensions: params.extensions?.length ? params.extensions : undefined,
+      workflow: params.workflow
     }
     catalog.drafts = [draft, ...catalog.drafts.filter(item => item.id !== draft.id)].slice(0, 20)
     return draft
@@ -809,6 +813,7 @@ export async function saveClip(params: {
   familyId?: string
   parentClipId?: string
   chainIndex?: number
+  workflow?: 'v1' | 'v2'
 }) {
   const catalog = readCatalog(params.ownerKey)
   const folder = catalog.folders.find(item => item.id === params.folderId) || catalog.folders[0]
@@ -833,7 +838,8 @@ export async function saveClip(params: {
     scheduler: params.scheduler,
     familyId: params.familyId,
     parentClipId: params.parentClipId,
-    chainIndex: params.chainIndex
+    chainIndex: params.chainIndex,
+    workflow: params.workflow
   }
   mkdirSync(clipDir(params.ownerKey, clip.id), { recursive: true })
   const videoPath = clipVideoPath(params.ownerKey, clip.id)
@@ -852,12 +858,13 @@ export async function saveClip(params: {
   } else {
     await extractVideoThumb(clipVideoPath(params.ownerKey, clip.id), join(clipDir(params.ownerKey, clip.id), 'thumb.jpg'))
   }
-  if (params.thumb?.length) {
+  const saveInputStill = Boolean(params.thumb?.length) && !params.parentClipId && !(params.chainIndex || 0)
+  if (saveInputStill) {
     await saveStill({
       ownerKey: params.ownerKey,
       folderId: folder.id,
       filename: `${clip.id}.png`,
-      data: params.thumb,
+      data: params.thumb!,
       width: params.width,
       height: params.height,
       hideInput: params.hideInput