refactor: clean upload pipeline and restore draco delivery

docker-entrypoint.sh

@@ -6,6 +6,15 @@ echo "[upload-gltf] Starting Upload GLTF..."
 # Ensure tmp directory for uploads exists
 mkdir -p /tmp/assets
 
+# Check if Blender is available for Draco compression
+if command -v blender > /dev/null 2>&1; then
+  BLENDER_VERSION=$(blender --version 2>/dev/null | head -n 1)
+  echo "[upload-gltf] Blender found: $BLENDER_VERSION"
+  echo "[upload-gltf] Draco compression is enabled."
+else
+  echo "[upload-gltf] WARNING: Blender not found. GLB Draco uploads will fail; use 'Envoyer en GLTF' if needed."
+fi
+
 echo "[upload-gltf] Ready. Launching application..."
 
 exec "$@"