diff --git a/.gitignore b/.gitignore
index bc217c3..d0c8c53 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,9 +10,11 @@ venv/
 env/
 
 # Flask
-instance/
+# instance/auth_db.sqlite는 초기 DB로 포함 (test 계정 미리 생성됨)
+# 다른 sqlite/db 파일은 무시
 *.sqlite
 *.db
+!instance/auth_db.sqlite
 
 # IDE
 .vscode/
diff --git a/instance/auth_db.sqlite b/instance/auth_db.sqlite
new file mode 100644
index 0000000..d4af79e
Binary files /dev/null and b/instance/auth_db.sqlite differ