Missing .env.example for environment variable configuration

[ChaitanyaChute]

Description of the bug:

The project currently does not include a .env.example file, which makes it unclear for new contributors to know which environment variables are required to run the project locally.

Actual vs expected behavior:

Actual behavior

• There is no .env.example file in the repository.
• Required environment variables are not clearly documented.

Expected behavior

• A .env.example file should be present in the project root.
• It should list all required environment variables with placeholder values and brief comments.

Any other information you'd like to share?

No

[ChaitanyaChute]

I’d like to work on this issue and will open a PR shortly.