Read the network settings
Returns the network-wide back-office preference document: a flat map of preference key → primitive value (boolean for a toggle, string for a choice) under preferences. These are NETWORK settings, not per-store ones — there is no store parameter, and the same document applies everywhere. Takes no parameters and always answers 200: before an operator has saved anything it returns { "preferences": {} } rather than a 404, so an empty map means ‘nothing configured yet’, never ‘not found’. ALWAYS call this before the update operation: the update replaces the document wholesale, so you must merge your change into the map you read here. The key vocabulary is owned by the back-office panel, not by the API — do not assume a key exists because you have seen it elsewhere; read what is actually there.
Authorizations
Authorization: Bearer <token>. Accepts EITHER a Keycloak access token (scopes-in-token) OR an opaque POS session token; both resolve to the same pos.* scope vocabulary the route guards enforce.
Response
The current network settings (an empty preferences map if never saved).
The current network settings (an empty preferences map if never saved).

