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/extend.post.ts

@@ -100,7 +100,8 @@ export default defineEventHandler(async (event) => {
     extendSourceClipId: source.id,
     familyId: source.familyId || crypto.randomUUID(),
     parentClipId: source.id,
-    chainIndex: (source.chainIndex || 0) + 1
+    chainIndex: (source.chainIndex || 0) + 1,
+    workflow: parseVideoWorkflow(source.workflow)
   }
 
   emitJob(job, { type: 'status', message: 'Extracting last frame & stitching extension...', progress: 2 })
@@ -163,7 +164,6 @@ async function runExtend(
   copyFileSync(params.sourcePath, params.part1Path)
   await extractLastFrame(params.part1Path, params.framePath)
   const frame = readFileSync(params.framePath)
-  job.library!.thumb = frame
   const sound = await probeHasAudio(params.part1Path)
 
   await ensureComfyReady((status) => {
@@ -202,7 +202,9 @@ async function runExtend(
     samplerName: params.samplerName,
     scheduler: params.scheduler,
     filenamePrefix: comfyFilenamePrefix(),
-    sound
+    sound,
+    workflow: job.library?.workflow,
+    duration: job.library?.duration
   })
 
   const queued = await queuePrompt(graph, job.clientId)