Stop ghost extension clips and recover last-frame extract after an interrupt.

Only one Comfy finish path can save a clip, hide catalog entries whose MP4 is missing, and retry last-frame extract so a truncated file does not dump FFmpeg noise into the UI.

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

pages/index.vue

@@ -702,6 +702,7 @@ interface LibraryClip {
   seed: number
   hideThumbnail: boolean
   hasThumbnail?: boolean
+  hasVideo?: boolean
   createdAt: number
   cfg?: number
   fps?: number
@@ -950,7 +951,7 @@ const plannedChain = computed(() => {
   ]
 })
 
-const visibleClips = computed(() => clips.value.filter(clip => clip.folderId === browseFolderId.value))
+const visibleClips = computed(() => clips.value.filter(clip => clip.folderId === browseFolderId.value && clip.hasVideo !== false))
 const libraryGroups = computed(() => {
   const groups = new Map<string, LibraryClip[]>()
   for (const clip of visibleClips.value) {
@@ -974,9 +975,9 @@ function clipsIn(id: string) {
 }
 
 function clipFamilyKey(clip: LibraryClip) {
-  if (clip.familyId) return clip.familyId
   const base = String(clip.name || '').trim().replace(/\s+p\d+$/i, '')
   if (base) return `name:${clip.folderId}:${base.toLowerCase()}`
+  if (clip.familyId) return clip.familyId
   return `solo:${clip.id}`
 }
 
@@ -985,7 +986,7 @@ function sortClipParts(a: LibraryClip, b: LibraryClip) {
   if (durationDelta) return durationDelta
   const chainDelta = (b.chainIndex || 0) - (a.chainIndex || 0)
   if (chainDelta) return chainDelta
-  return b.createdAt - a.createdAt
+  return a.createdAt - b.createdAt
 }
 
 function formatClipDuration(value?: number) {