Simulate KYC approval (sandbox only)

Simulates a KYC/KYB approval for a customer in the sandbox environment. This endpoint is not available in production.

Mimics what happens when a customer completes identity verification through the KYC provider in production:

• Sets the customer's KYC status to approved
• Populates required entity data (name, address, date of birth) using any data already on the customer, falling back to sandbox defaults
• Approves any pending endorsements, enabling the customer to initiate transfers

Useful for testing the full customer lifecycle without integrating with a real KYC provider.