Retrieve a balance

curl -X GET "https://api.live.paisr.tech/v2/wallets/{wallet_id}/balances/{balance_id}" \
  -H "Authorization: Bearer <access_token>" \
  -H "User-Agent: MyApp/1.0" \
  -H "Content-Type: application/json"

{
  "success": true,
  "data": {
    "id": "bca_123456",
    "title": "SRD Balance",
    "currency": "SRD",
    "balance": {
      "running": 2802.75,
      "holding": 0
    },
    "frozen": false,
    "type": "primary",
    "treasurer": {
      "name": "PAISR Treasury",
      "iban": "ABC123456789",
      "type": "checking",
      "bank": {
        "name": "Southern Commercial Bank",
        "swift": "SOUOSRPP"
      }
    },
    "created_at": "2024-01-15T10:30:00Z"
  }
}