diff --git a/.env b/.env
deleted file mode 100644
index 47f95ef..0000000
--- a/.env
+++ /dev/null
@@ -1,34 +0,0 @@
-# AccManager Backend Configuration
-
-# Application
-NODE_ENV=production
-
-# Host port exposed by docker compose
-APP_PORT=3000
-
-# Image used for server pull deployment
-DOCKER_IMAGE=toiiiiday/accmanager:1.1.4
-
-# Container app port
-PORT=3000
-
-# SQL Server Configuration
-DB_SERVER=172.20.235.176
-DB_USER=sa
-DB_PASSWORD=robotics@2022
-DB_NAME=AccManager
-DB_ENCRYPT=false
-DB_TRUST_CERTIFICATE=true
-DB_CONNECT_TIMEOUT=30000
-
-# Security
-BCRYPT_ROUNDS=12
-
-# Email Verification (SMTP)
-APP_BASE_URL=https://accrobot.pnkr.asia/
-SMTP_HOST=smtp.gmail.com
-SMTP_PORT=587
-SMTP_SECURE=false
-SMTP_USER=robotics.gitlab.2fa@gmail.com
-SMTP_PASS=jaljalhreomqruqo
-SMTP_FROM=robotics.gitlab.2fa@gmail.com
diff --git a/.gitignore b/.gitignore
index 3c3629e..29e62d3 100644
Binary files a/.gitignore and b/.gitignore differ
diff --git a/README.md b/README.md
index 101cd67..7d0d6d7 100644
--- a/README.md
+++ b/README.md
@@ -56,20 +56,7 @@ He thong da ho tro xac thuc email cho:
 - Dang ky tai khoan moi.
 - Doi email trong phan ho so ca nhan.
 
-Can cau hinh cac bien moi truong SMTP sau:
 
-- `APP_BASE_URL`: URL truy cap he thong (vi du `http://localhost:3000` hoac domain production).
-- `SMTP_HOST`: Host SMTP (vi du `smtp.gmail.com`).
-- `SMTP_PORT`: Port SMTP (thuong la `587` cho TLS hoac `465` cho SSL).
-- `SMTP_SECURE`: `true` neu dung SSL (port 465), nguoc lai `false`.
-- `SMTP_USER`: Tai khoan gui email.
-- `SMTP_PASS`: Mat khau app/email.
-- `SMTP_FROM`: Dia chi hien thi nguoi gui (co the de trong de dung `SMTP_USER`).
-- `EMAIL_VERIFY_TOKEN_TTL_MINUTES`: So phut het han link xac thuc (mac dinh 30).
-
-Neu chua cau hinh SMTP, he thong van tao tai khoan nhung se tra ve link xac thuc dang preview cho moi truong dev.
-
----
 
 Phiên bản tài liệu: 3.0.0  
 Cập nhật: Tháng 4 năm 2026