guest_mode flows — direct_charge applies credits synchronously in the POST response and does not need polling.curl --location 'https://api.inboxkit.com/v1/api/billing/wallet/status?session_id=cs_test_a1b2c3d4e5f6g7h8...' \
--header 'Authorization: Bearer <token>'{
"error": false,
"session_id": "cs_test_a1b2c3d4e5f6g7h8...",
"payment_status": "paid",
"amount": 50,
"currency": "usd",
"credits_applied": true
}