Add ACE-Step music generation to the studio and library.

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

server/utils/jobs.ts

@@ -12,6 +12,7 @@ export interface JobEvent {
   mediaType?: string
   clipId?: string
   stillId?: string
+  trackId?: string
   hideThumbnail?: boolean
   error?: string
   elapsedMs?: number
@@ -31,7 +32,7 @@ export interface JobEvent {
 
 export interface Job {
   id: string
-  kind?: 'video' | 'edit'
+  kind?: 'video' | 'edit' | 'music'
   promptId?: string
   clientId: string
   status: JobStatus
@@ -41,8 +42,10 @@ export interface Job {
   maxStep: number
   startedAt: number
   video?: { filename: string; subfolder: string; type: string }
+  audio?: { filename: string; subfolder: string; type: string }
   clipId?: string
   stillId?: string
+  trackId?: string
   hideThumbnail?: boolean
   imageComfyHost?: string
   library?: {
@@ -102,6 +105,12 @@ export interface Job {
     loraStack?: import('~/utils/loras').LoraStackItem[]
     shotLoras?: string[]
     shotLoraStacks?: import('~/utils/loras').LoraStackItem[][]
+    tags?: string
+    lyrics?: string
+    instrumental?: boolean
+    audioExt?: string
+    engine?: string
+    lyricsStrength?: number
   }
   error?: string
   socketReady?: boolean
@@ -115,9 +124,10 @@ export interface Job {
 const jobs = new Map<string, Job>()
 const MAX_JOBS = 40
 
-export function createJob(): Job {
+export function createJob(kind: Job['kind'] = 'video'): Job {
   const job: Job = {
     id: crypto.randomUUID(),
+    kind,
     clientId: crypto.randomUUID(),
     status: 'queued',
     message: 'Queued',
@@ -175,6 +185,7 @@ export function listJobs() {
 }
 
 export function jobSnapshot(job: Job) {
+  const media = job.kind === 'music' ? job.audio : job.video
   return {
     jobId: job.id,
     kind: job.kind || 'video',
@@ -186,11 +197,12 @@ export function jobSnapshot(job: Job) {
     maxStep: job.maxStep,
     promptId: job.promptId,
     elapsedMs: Date.now() - job.startedAt,
-    filename: job.library?.folderLocked ? undefined : job.video?.filename,
-    subfolder: job.library?.folderLocked ? undefined : job.video?.subfolder,
-    mediaType: job.library?.folderLocked ? undefined : job.video?.type,
+    filename: job.library?.folderLocked ? undefined : media?.filename,
+    subfolder: job.library?.folderLocked ? undefined : media?.subfolder,
+    mediaType: job.library?.folderLocked ? undefined : media?.type,
     clipId: job.clipId,
     stillId: job.stillId,
+    trackId: job.trackId,
     hideThumbnail: job.hideThumbnail,
     error: job.error,
     folderLocked: job.library?.folderLocked,