Add Environment Variable Validation to Prevent Misconfiguration #135
Description
Environment variables are currently accessed without centralized validation, which can lead to runtime errors, unexpected behavior, or silent failures when variables are missing or incorrectly typed.
Problem
- Missing or misconfigured environment variables are not detected early.
- Errors surface only at runtime, making debugging harder.
- No single source of truth exists for required environment variables.
- Type expectations (string, number, boolean) are not enforced.
- Add a proper auto documentation generator for
.env.