use /api/api-key/verify to verify existing api key and login as needed

[octref]

Description

Please explain the changes you made here.

Checklist

• Code compiles correctly and linting passes locally
• Tests added for new functionality, or regression tests for bug fixes added as applicable
• For new features, etc., PR on docs repo staged and
  linked here

Instructions

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  syntax, leading with fix:, feat:, chore:, ci:, etc.
• The description should briefly explain what the PR is about. In the case of a bugfix, describe or
  link to the bug.
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  • If not applicable, remove the entire line. Only leave the box unchecked if you intend to come
    back and check the box later.
• Delete the Instructions line and everything below it, to indicate you have read and are
  following these instructions. 🙂

Thank you for your contribution to the Modus project!