fix: register FetchOrderBookParams in OpenAPI TYPE_REF_MAP

The generator needs the type in TYPE_REF_MAP to enumerate its
properties as query parameters. Without this, since/until/side
were silently dropped from the generated docs.

Author: realfishsam

changelog.md

@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [2.43.3] - 2026-05-22
+
+### Fixed
+
+- **Docs**: Register `FetchOrderBookParams` in `TYPE_REF_MAP` so the OpenAPI generator emits `side`, `since`, `until` as query parameters on the fetchOrderBook endpoint.
+
 ## [2.43.2] - 2026-05-22
 
 ### Fixed

core/scripts/generate-openapi.js

@@ -937,6 +937,7 @@ const TYPE_REF_MAP = {
   MarketFilterParams: 'MarketFilterParams',
   EventFetchParams: 'EventFetchParams',
   OHLCVParams: 'OHLCVParams',
+  FetchOrderBookParams: 'FetchOrderBookParams',
   HistoryFilterParams: 'HistoryFilterParams',
   TradesParams: 'TradesParams',
   CreateOrderParams: 'CreateOrderParams',