Embat Categories API

`Category` represents a treasury or cashflow classification in Embat, used to group transactions, forecasts and operations for reporting (e.g. "Providers", "Payroll", "Subscriptions"). Categories are created and managed in the Embat application; this API only lists and retrieves them. `parentId` is the Embat ID of the parent category, letting you build a category tree such as:- Payments - Providers - Europe - Latam - Payroll- Collections - SubscriptionsA category has no `parentId` when it is a top-level category.Categories are referenced by `categoryId` on `Transactions`, `Forecasts` and `Operations` to classify each movement. In the Embat application you can also map an ERP ledger account to a category, so operations posted against that account are categorized automatically.**Typical flow:** look up the categories configured for a company with `GET /categories/{companyId}` (or a single one with `GET /categories/{companyId}/{id}`) and use their `id` as the `categoryId` when creating or reading transactions, forecasts or operations through the corresponding endpoints.