fix: support gltf uploads with local preview

hooks/useFolderEntries.ts

@@ -3,6 +3,13 @@
 import { useState, useCallback } from 'react'
 import type { FolderEntry } from '@/lib/client-types'
 
+function revokeEntryUrls(entry: FolderEntry) {
+  const urls = new Set<string>()
+  if (entry.modelUrl) urls.add(entry.modelUrl)
+  Object.values(entry.assetUrls || {}).forEach((url) => urls.add(url))
+  urls.forEach((url) => URL.revokeObjectURL(url))
+}
+
 export function useFolderEntries() {
   const [entries, setEntries] = useState<FolderEntry[]>([])
 
@@ -13,7 +20,7 @@ export function useFolderEntries() {
   const removeEntry = useCallback((index: number) => {
     setEntries((prev) => {
       const entry = prev[index]
-      if (entry?.modelUrl) URL.revokeObjectURL(entry.modelUrl)
+      if (entry) revokeEntryUrls(entry)
       return prev.filter((_, i) => i !== index)
     })
   }, [])
@@ -21,7 +28,7 @@ export function useFolderEntries() {
   const resetEntries = useCallback(() => {
     setEntries((prev) => {
       prev.forEach((f) => {
-        if (f.modelUrl) URL.revokeObjectURL(f.modelUrl)
+        revokeEntryUrls(f)
       })
       return []
     })