fix: resolve gltf companion assets reliably

components/upload/FolderDropzone.tsx

@@ -72,11 +72,11 @@ export default function FolderDropzone({
   const inputRef = useRef<HTMLInputElement>(null)
   const [isDragActive, setIsDragActive] = useState(false)
 
-  const processFiles = (files: File[], fallbackFolderName = 'folder') => {
+  const processFiles = async (files: File[], fallbackFolderName = 'folder') => {
     if (files.length === 0) return
 
     const folderName = files[0].webkitRelativePath?.split('/')[0] || fallbackFolderName
-    const validation = validateFolder(files)
+    const validation = await validateFolder(files)
 
     if (!validation.ok) {
       onError(validation.errors.join(' | '))
@@ -107,7 +107,7 @@ export default function FolderDropzone({
     const selected = e.target.files
     if (!selected || selected.length === 0) return
 
-    processFiles(Array.from(selected))
+    void processFiles(Array.from(selected))
     e.target.value = ''
   }
 
@@ -148,14 +148,14 @@ export default function FolderDropzone({
 
         const rootEntry = directoryEntries[0]
         const files = await collectEntryFiles(rootEntry)
-        processFiles(files, rootEntry.name)
+        await processFiles(files, rootEntry.name)
         return
       }
 
       const droppedFiles = Array.from(e.dataTransfer.files)
       if (droppedFiles.length === 0) return
 
-      processFiles(droppedFiles)
+      await processFiles(droppedFiles)
     } catch {
       onError('Impossible de lire le dossier depose')
     }

components/upload/WarningBanner.tsx

@@ -11,7 +11,7 @@ export default function WarningBanner({ warnings }: WarningBannerProps) {
     <div className="mt-2 px-3 py-2 bg-yellow-900/20 border border-yellow-700/30 rounded-lg">
       <div className="flex items-center gap-2 text-xs text-yellow-400">
         <WarningIcon className="w-4 h-4" />
-        <span>Textures manquantes : {warnings.join(', ')}</span>
+        <span>{warnings.join(' ')}</span>
       </div>
     </div>
   )