docs(dotenv): suggest process.loadEnvFile as native replacement

[unrevised6419]

What

Adds process.loadEnvFile(path) (Node.js v20.12.0+) as the first suggested native replacement in the dotenv docs.

It is the closest drop-in for dotenv.config() when env vars must be loaded programmatically rather than via the --env-file flag.

Verified

Behavior claims checked empirically on Node v24.16.0:

• Throws ENOENT when the file is missing.
• Defaults to .env in the current working directory when called with no path.

Closes #620

🤖 Generated with Claude Code

[gameroman]

Also add process.loadEnvFile to the manifest please

[unrevised6419]

Done — added process.loadEnvFile as a native replacement entry and listed it for the dotenv mapping. Manifest validation + prettier pass.

[dreyfus92]

@gameroman if this is a native replacement, shouldn't this live within the native manifest instead of preferred?

[gameroman]

@gameroman if this is a native replacement, shouldn't this live within the native manifest instead of preferred?

Do you mean process.loadEnvFile or the whole thing?

I think it's in the preferred manifest because it has docs, and previously we didn't have node-native replacements

[43081j]

@unrevised6419 before we merge this, can you come say Hi so we can interact with you rather than your agent.

these days it is important we know we're dealing with a person since some of these things lead to rep farming etc.