refactor: clean upload pipeline and restore draco delivery

components/upload/ActionButtons.tsx

@@ -1,4 +1,5 @@
-import { SpinnerIcon } from '@/components/ui/icons'
+import { SpinnerIcon, WarningIcon } from '@/components/ui/icons'
+import type { GitModelMode } from '@/lib/types'
 
 interface ActionButtonsProps {
   isUploading: boolean
@@ -7,7 +8,7 @@ interface ActionButtonsProps {
   hasPendingOrErrors: boolean
   allDone: boolean
   hasErrors: boolean
-  onUpload: () => void
+  onUpload: (gitModelMode: GitModelMode) => void
   onCancel: () => void
   onReset: () => void
 }
@@ -27,20 +28,38 @@ export default function ActionButtons({
   const isBusy = isUploading || isChecking
 
   return (
-    <div className="flex gap-3">
+    <div className="flex flex-col gap-3 sm:flex-row">
       {!isBusy && hasPendingOrErrors && (
-        <button
-          onClick={onUpload}
-          disabled={cantUpload}
-          className={`flex-1 font-medium text-sm py-2.5 px-6 rounded-xl transition-all duration-150
-                     focus:outline-none focus:ring-2 focus:ring-white/50 border border-white/20
-                     ${cantUpload
-                       ? 'bg-white/30 text-gray-500 cursor-not-allowed'
-                       : 'bg-white text-[#000000] hover:bg-gray-200'
-                     }`}
-        >
-          Envoyer
-        </button>
+        <>
+          <button
+            onClick={() => onUpload('draco-glb')}
+            disabled={cantUpload}
+            className={`flex-1 font-medium text-sm py-2.5 px-6 rounded-xl transition-all duration-150
+                       focus:outline-none focus:ring-2 focus:ring-white/50 border border-white/20
+                       ${cantUpload
+                         ? 'bg-white/30 text-gray-500 cursor-not-allowed'
+                         : 'bg-white text-[#000000] hover:bg-gray-200'
+                       }`}
+          >
+            Envoyer
+          </button>
+
+          <button
+            onClick={() => onUpload('keep-gltf')}
+            disabled={cantUpload}
+            className={`flex-1 font-medium text-sm py-2.5 px-6 rounded-xl border transition-all duration-150
+                       focus:outline-none focus:ring-2 focus:ring-white/30
+                       ${cantUpload
+                         ? 'bg-black-800 text-gray-600 border-white/10 cursor-not-allowed'
+                         : 'bg-black-700 text-gray-300 border-black-600 hover:bg-black-600'
+                       }`}
+          >
+            <span className="flex items-center justify-center gap-2">
+              <WarningIcon className="w-4 h-4 text-yellow-400" />
+              <span>Envoyer en GLTF</span>
+            </span>
+          </button>
+        </>
       )}
 
       {isBusy && (