Submit KYC selfie and finalize onboarding

DESCONTINUADO — retorna 410. O KYC agora é parte do fluxo Full Autra.

Receives the base64-encoded selfie captured by the Unico SDK, submits it to Unico for verification, and — if approved — automatically chains the full account creation flow:

1. Unico verify — server-side biometric decision (source of truth)
2. Person creation — registers the natural person in the banking provider
3. Account creation — creates the digital account
4. Account activation polling — waits for the account to leave BLOCKED state and obtain agency/number

On success returns 200 with status: COMPLETED and the new account details.

Possible 202 Accepted responses

Two scenarios may return 202 with the current proposal in the body:

• KYC still processing — Unico's risk score orchestration is taking longer than the inline polling window (~17s). The app should wait a few seconds and re-call this endpoint without an image — the backend will reuse the saved process ID.
• Account still provisioning — the banking provider hasn't activated the account yet (~2-5s typical). The app should poll GET /v1/banking/onboarding/{id} until status becomes COMPLETED.

Idempotency

• If proposal is already COMPLETED, returns the current state without any side effects.
• If interrupted between person creation and account creation, the next call resumes from where it stopped.
• Re-calling after a 202 (KYC still processing) skips submission and only polls Unico for the result.