[WIP] Fix varlock init behavior in monorepos

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[BUG]: varlock init has surprising results in monorepos</issue_title>
<issue_description>### varlock version

0.1.3

Steps to reproduce

1. Have a repo where .env files are not at the root of the project
2. Run pnpm exec varlock init

What is expected?

Ideally: It will find the .env/.env.example files in your project, and help you create an .env.schema for each.

Simpler: It will notice there are .env files elsewhere, and ask you to run pnpm exec varlock init from those locations.

What is actually happening?

It creates a blank .env.schema in your project root, then asks you to review and update it.

System Info

Any additional comments?

No response</issue_description>

<agent_instructions>Dont worry about detecting if we are in a monorepo.

If there are no .env files within the current directory, do a search within child directories (be sure to ignore node_modules) and if any .env files are found, just display a message explaining to the user that it looks like they are in a monorepo, and they should run varlock init within each child directory, and that common config can then be pulled into a shared location and imported.
</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes [BUG]: varlock init has surprising results in monorepos #238

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[theoephraim]

@copilot try again