Embat Banks API
`Bank` represents a banking relationship connected to your company in Embat — for example, an aggregated connection to a specific banking entity. Each bank relationship groups the `bankProducts` (checking accounts, credit lines, cards...) held at that entity, together with the oldest successful aggregation timestamp among them. `GET /banks/{companyId}` only returns relationships that have at least one product, and each relationship's `bankProducts` only lists its currently active products. Use `GET /banks/{companyId}/{id}` to retrieve a single relationship by its Embat `id` regardless of whether it currently has active products. To read balances and transactions for a specific account, use the `id` of an entry in `bankProducts` with the `Products` and `Transactions` endpoints.