Enable two-factor

Confirms the pending TOTP setup with a code from the authenticator and turns two-factor on, returning one-time recovery codes. Requires the **viewer** role.

curl -X POST "https://example.com/api/auth/2fa/enable" \  -H "Content-Type: application/json" \  -d '{    "code": "string"  }'

{  "recoveryCodes": [    "string"  ]}