Document installer release architecture

autoinstall/offline/verify-bundle.sh

@@ -23,7 +23,7 @@ for path in "${required[@]}"; do
   }
 done
 
-for directory in payload/apt payload/containers payload/python payload/models/huggingface; do
+for directory in payload/apt payload/containers payload/python/backend payload/python/chromadb payload/python/platform payload/models/huggingface; do
   find "$OUTPUT_DIR/$directory" -type f -print -quit | grep -q . || {
     echo "ERROR: required offline payload directory is empty: $directory" >&2
     exit 1