Unstick studio queue when Ready but waiting jobs will not start.

A failed held shot-batch no longer blocks waiting work, ghost Comfy pending no longer freezes Start now, and Start now force-starts when the GPU is idle.

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

pages/index.vue

@@ -5392,8 +5392,12 @@ async function refreshStudioQueue() {
 
 async function cutInStudioJob(id: string) {
   try {
-    await $fetch(`/api/studio-queue/${id}/cut-in`, { method: 'POST' })
-    toast('This job will run after the current shot, as its own clip.')
+    const result = await $fetch<{ started?: boolean; deferred?: boolean }>(`/api/studio-queue/${id}/cut-in`, { method: 'POST' })
+    toast(result.started
+      ? 'Starting now.'
+      : (result.deferred
+        ? 'This job will run after the current shot, as its own clip.'
+        : 'Queued to start as soon as the GPU is free.'))
     await refreshStudioQueue()
   } catch (error: any) {
     toast(error?.data?.statusMessage || error?.statusMessage || 'Could not move that job next')