Keep family pre/post text on shot queues and wrap the mid prompt at Comfy time.

Later shots were starting a new job without those wrappers, so only the first clip got them.

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

server/api/v2/generate.post.ts

@@ -27,7 +27,6 @@ import {
   type ImageV2Task
 } from '~/utils/imageV2'
 import { isXaigenStudio } from '~/utils/videoModels'
-import { joinPromptParts } from '~/utils/promptParts'
 import { listStudioLoras, parsePostedLoraStack, persistLoraFields, assertImageV2LoraStack } from '~/server/utils/loras'
 import { getStill, rememberInputStill, stillPath } from '~/server/utils/library'
 import { existsSync, readFileSync } from 'node:fs'
@@ -140,7 +139,7 @@ export default defineEventHandler(async (event) => {
   const promptMid = String(fields.prompt || '').trim()
   const promptPre = String(fields.promptPre || '').trim()
   const promptPost = String(fields.promptPost || '').trim()
-  const prompt = joinPromptParts(promptPre, promptMid, promptPost)
+  const prompt = promptMid
   const extraPasses = parsePasses(fields.passes)
   const passMode = parseImagePassMode(fields.passMode)
   const aspect = parseImageAspect(fields.aspect)
@@ -319,6 +318,7 @@ export default defineEventHandler(async (event) => {
     kind: 'edit',
     payload: {
       prompt,
+      promptMid: promptMid || undefined,
       promptPre: promptPre || undefined,
       promptPost: promptPost || undefined,
       name: clipName,