implement .env configuration support and restrict web interface to localhost

README.md

@@ -16,7 +16,7 @@ This application acts as a central manager. You can add the IP address, Port (de
 ## Setup & Running
 
 1. Clone or copy this directory.
-2. Edit `docker-compose.yml`:
+2. Copy `.env.example` to `.env` and edit it:
    - Change `WEB_PASSWORD` to your desired password for the web interface (the username can be anything, e.g., `admin`).
    - Change `ENCRYPTION_KEY` to a securely generated Fernet key.
      *You can generate one by running: `python -c "from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())"`*