Let Image v2 pick a LoRA or LoRA chain.

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

server/utils/studioQueue.ts

@@ -748,7 +748,8 @@ async function startStudioEditJob(item: StudioJob) {
           familyId: item.familyId,
           chainIndex: 0,
           chainStep: 1,
-          chainTotal: 1
+          chainTotal: 1,
+          ...persistLoraFields(payload.loraStack || payload.loraName)
         }
       })
       await markStudioLive(item.ownerKey, item.id, live.id)
@@ -774,7 +775,8 @@ async function startStudioEditJob(item: StudioJob) {
         height: payload.height,
         turbo: payload.turbo === true,
         sourceStillId: payload.stillId,
-        referenceStillId: payload.referenceStillId
+        referenceStillId: payload.referenceStillId,
+        loraStack: payload.loraStack
       }).catch((error) => {
         const message = error instanceof Error ? error.message : String(error)
         if (live && live.status !== 'error' && live.status !== 'cancelled' && live.status !== 'deferred') {