Ship duration control, hidden previews, job resume, and desktop file purge.

The slider never left this machine, so deploy the generate UI with separate input/output hide toggles, reconnect in-progress jobs after refresh, and delete Comfy input/output files after they are saved to the library.

server/api/generate.post.ts

@@ -1,3 +1,9 @@
+function parseDuration(raw: string) {
+  const seconds = Number(raw)
+  if (!Number.isFinite(seconds)) return 5
+  return Math.min(120, Math.max(0.5, seconds))
+}
+
 function frameLength(seconds: number) {
   const raw = Math.max(5, Math.round(seconds * 24))
   return raw + (5 - (raw % 17) + 17) % 17
@@ -33,7 +39,7 @@ export default defineEventHandler(async (event) => {
   const seed = fields.seed && fields.seed !== 'random'
     ? Number(fields.seed)
     : Math.floor(Math.random() * 2_147_483_647)
-  const length = frameLength(Number(fields.duration || 5))
+  const length = frameLength(parseDuration(fields.duration || '5'))
   const hideThumbnail = fields.hideThumbnail === 'true'
   const clipName = (fields.name || '').trim().slice(0, 80)
   const ownerKey = libraryOwnerKey(event)
@@ -44,7 +50,9 @@ export default defineEventHandler(async (event) => {
   if (!folderId) {
     throw createError({ statusCode: 400, statusMessage: 'Create a library folder before generating' })
   }
-  assertFolderAccess(event, folderId)
+  const destFolder = library.folders.find(folder => folder.id === folderId)
+  const folderLocked = Boolean(destFolder?.protected && !destFolder.unlocked)
+  assertFolderExists(event, folderId)
   await saveStill({
     ownerKey,
     folderId,
@@ -61,6 +69,7 @@ export default defineEventHandler(async (event) => {
     ownerKey,
     folderId,
     hideThumbnail,
+    folderLocked,
     name: clipName,
     prompt,
     aspect: fields.aspect || 'auto',
@@ -90,7 +99,8 @@ export default defineEventHandler(async (event) => {
     steps,
     turbo,
     folderId,
-    hideThumbnail
+    hideThumbnail,
+    folderLocked
   }
 })
 
@@ -149,6 +159,7 @@ async function runGeneration(
       ownerKey: job.library.ownerKey,
       folderId: job.library.folderId,
       hideThumbnail: job.library.hideThumbnail,
+      folderLocked: job.library.folderLocked,
       name: job.library.name,
       prompt: job.library.prompt,
       aspect: job.library.aspect,

server/api/generate/active.get.ts

@@ -0,0 +1,33 @@
+export default defineEventHandler((event) => {
+  const owner = libraryOwnerKey(event)
+  const live = listJobs()
+    .filter(job => job.library?.ownerKey === owner && (job.status === 'queued' || job.status === 'uploading' || job.status === 'running'))
+    .sort((a, b) => b.startedAt - a.startedAt)[0]
+  if (live) {
+    return {
+      jobId: live.id,
+      hideThumbnail: live.hideThumbnail === true,
+      folderLocked: live.library?.folderLocked === true,
+      ...jobSnapshot(live)
+    }
+  }
+
+  const pending = listPendingJobs()
+    .filter(job => job.ownerKey === owner)
+    .sort((a, b) => b.startedAt - a.startedAt)[0]
+  if (pending) {
+    return {
+      jobId: pending.jobId,
+      type: 'snapshot',
+      status: 'running',
+      message: 'Reconnecting to ComfyUI...',
+      progress: Math.max(8, Math.min(90, Math.round((Date.now() - pending.startedAt) / 1000))),
+      promptId: pending.promptId,
+      elapsedMs: Date.now() - pending.startedAt,
+      hideThumbnail: pending.hideThumbnail === true,
+      folderLocked: pending.folderLocked === true
+    }
+  }
+
+  return { jobId: null }
+})

server/api/library/stills.post.ts

@@ -23,7 +23,7 @@ export default defineEventHandler(async (event) => {
   if (!folderId) {
     throw createError({ statusCode: 400, statusMessage: 'Create a library folder first' })
   }
-  assertFolderAccess(event, folderId)
+  assertFolderExists(event, folderId)
   const still = await saveStill({
     ownerKey: owner,
     folderId,