Add built-in dotenv loading to the validator binary. - Auto-load `.env` from working directory if present - `--env-file <path>` flag to override with a custom path - `.env` added to `.gitignore`, `.env.example` with defaults provided - README updated with usage
Add built-in dotenv loading to the validator binary.
.envfrom working directory if present--env-file <path>flag to override with a custom path.envadded to.gitignore,.env.examplewith defaults provided