Request the card-issuing capability on a Moov account and poll requirements until the capability status reaches enabled

Steps

1. POST to https://api.moov.io/accounts/{accountID}/capabilities with body {"capabilities": ["card-issuing"]} and header x-moov-version: v2026.04.00 to request the capability.
2. Retrieve the current capability state with GET /accounts/{accountID}/capabilities; inspect the status field — valid values are enabled, disabled, pending, and in-review.
3. If requirements.currentlyDue is non-empty, collect and submit the listed fields (e.g., individual.ssn, business.ein, representative fields) via the appropriate account or representative endpoints.
4. For document requirements such as document.individual.verification, upload the file using POST /accounts/{accountID}/files and reference the returned file ID in subsequent capability checks.
5. Subscribe to capability-related webhook events to receive real-time status transitions rather than polling continuously.
6. Once status is enabled, proceed to POST /issuing/{accountID}/issued-cards to create a virtual spending card.