Add typed JSON output to autocorrect status

[gonzaloriestra]

WHY are these changes introduced?

config autocorrect status has no typed JSON result, so scripts cannot reliably read the preference.

Related to https://github.com/shop/issues-develop/issues/24282.

WHAT is this pull request doing?

Add --json with a strict {enabled: boolean} result and discoverable schema. Separate the preference query from the shared presenter while preserving terminal messages. Remove the command's migration exception and refresh the manifest and generated documentation.

How to manually test your changes?

• Run pnpm shopify config autocorrect status --json --no-input and check that the result contains the current enabled value.
• Run pnpm shopify config autocorrect status --json-schema to inspect the result schema.
• Run pnpm shopify config autocorrect status to check the terminal message.

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes
• I've considered analytics changes to measure impact
• The change is user-facing — added a minor changeset.