Banks, petty cash funds and checkbooks

GET /treasury/banks

curl https://api.filexpress.app/api/external/v1/treasury/banks \
  -H "X-API-Key: fx_xxxxxxxx"

{
  "status": true,
  "data": [
    {
      "id": "3f1c...",
      "name": "Banco Agrícola - Corriente",
      "account_number": "0012-345678-9",
      "balance": 15420.35
    }
  ]
}

GET /treasury/petty-cashes

{
  "status": true,
  "data": [
    { "id": "8b2e...", "name": "Caja chica Sucursal Centro", "balance": 250.00 }
  ]
}

GET /treasury/checkbooks?bank_id={bank_id}&status=ACTIVE

{
  "status": true,
  "data": [
    {
      "id": "c71a...",
      "bank_id": "3f1c...",
      "name": "Chequera 2026",
      "code": "A",
      "start_number": 1,
      "end_number": 100,
      "current_number": 37,
      "status": "ACTIVE"
    }
  ]
}