Moved the `if dry_run: return 0` guard before `_vscode_user_dir()` in the
`config-file` mechanism — consistent with the same pattern applied to the
`env` mechanism in v3.6.1. On CI runners (and any machine without VS Code),
`_vscode_user_dir()` returns None, causing dry_run calls to fail with
"VS Code user dir not found". Dry-run never writes anything, so it must
not require the target application to be installed.

Bumps version to 3.6.2.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>