Fix library thumbnails and let clips keep a display name.

Extract a poster frame when a still-thumb is missing, and show the clip name in the library with the prompt on the info icon.

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

server/utils/comfy.ts

@@ -135,6 +135,29 @@ export function extractPromptFromHistory(entry: unknown) {
   return ''
 }
 
+export function extractClipMetaFromHistory(entry: unknown) {
+  const prompt = (entry as { prompt?: unknown[] })?.prompt
+  const graph = Array.isArray(prompt) ? prompt[2] : null
+  const meta = { width: 0, height: 0, steps: 0, seed: 0 }
+  if (!graph || typeof graph !== 'object') return meta
+  for (const node of Object.values(graph as Record<string, { class_type?: string; inputs?: Record<string, unknown> }>)) {
+    const inputs = node?.inputs || {}
+    if (node?.class_type === 'MiniMaxH3ImageToVideo') {
+      meta.width = Number(inputs.width || meta.width)
+      meta.height = Number(inputs.height || meta.height)
+    }
+    if (node?.class_type === 'BasicScheduler' || node?.class_type === 'PrimitiveInt') {
+      const steps = Number(inputs.steps || 0)
+      if (steps > 0) meta.steps = steps
+    }
+    if (node?.class_type === 'RandomNoise' || node?.class_type === 'SamplerMiniMax' || node?.class_type === 'KSampler') {
+      const seed = Number(inputs.noise_seed ?? inputs.seed ?? 0)
+      if (seed) meta.seed = seed
+    }
+  }
+  return meta
+}
+
 export function inspectHistory(history: Record<string, unknown> | null, promptId: string) {
   const video = extractVideo(history, promptId)
   if (!history) return { video: null, completed: false, error: null as string | null }