Missing .env.example file in the repository

[Dipongkor-Roy]

Hi,

I noticed that the repository is missing a .env.example file. This file is really helpful for setting up the project locally as it outlines the required environment variables. Without it, it's hard to know what keys or formats are expected, which may lead to misconfiguration or confusion during development.

Could you please add a .env.example file or provide documentation listing the required environment variables?

Thanks!