feature:Type safe env variables

[shubham1091]

This PR creates an env.ts file for better environment variables we usually face the issue of the environment variable not being type-safe to solve this issue I used t3-env to create env with correct types now we don't need to use '||','!' etc to remove warnings and the variables are easy to access and type-safe

Resolves #[Issue Number if there]

Checklist before requesting a review

• [x] I have performed a self-review of my code
• [x] I assure there is no similar/duplicate pull request regarding same issue

[shubham1091]

@hkirat sir can you please review this PR

[siinghd]

too many conflicts