Resend Verify Email

Re-send the confirmation link for this key's email address.

Exists so an agent that hits the unverified daily cap can get its human back on track without leaving the session — the 429 body names this endpoint. The 10-minute resend cooldown inside _issue_verify is the abuse floor.

Only ever acts on the CALLER'S OWN key, so the outcome is reported honestly rather than blurred: there is no other account's state to probe here, and a vague "sent" for a mail that never went out just sends an agent back to wait for an email that will never arrive.