diff --git a/backend/app/attach/audio/test.wav b/backend/app/attach/audio/test.wav
new file mode 100644
index 0000000..e69de29
diff --git a/backend/app/attach/file/test.txt b/backend/app/attach/file/test.txt
new file mode 100644
index 0000000..e69de29
diff --git a/backend/app/attach/file/vector/test.db b/backend/app/attach/file/vector/test.db
new file mode 100644
index 0000000..e69de29
diff --git a/backend/app/attach/image/docker-compose.png b/backend/app/attach/image/docker-compose.png
new file mode 100644
index 0000000..30a10b9
Binary files /dev/null and b/backend/app/attach/image/docker-compose.png differ