[FEAT] Add .env.example configuration template for environment variables

[mramansayyad]

Feature Request

The codebase relies on environment variables, but there is no template or placeholder configuration file (e.g., .env.example) in the root directory. This makes it difficult for new contributors to set up the project locally.

Proposed Solution

Create a .env.example file in the root containing all the environment variables needed by the application (with placeholder values). Document their purpose in the file comments so developers can easily configure their local environment.

GSSoC '26

• Yes, I am participating in GirlScript Summer of Code and would like to build this.