Categories

Product categories, shared by all outlets.

📄️ List product categories

Every category the merchant can use: its own and the shared platform categories, shallow levels first (a tree flattened by `parent_id`). Company-wide: no `X-Outlet-ID` (a sent one is ignored). Pages are offset-based: categories added or removed while you page can shift rows between pages. `POST /categories` creates a category.

📄️ Create a product category

Creates a category as the acting user. Omit `parent_id` for a top-level category.