initial commit, add bitget rest api and websockets connector

src/constants/enum.ts

@@ -0,0 +1,17 @@
+export const API_ERROR_CODE = {
+  SUCCESS: '00000',
+  INCORRECT_PERMISSIONS: '40014',
+  ACCOUNT_NOT_COPY_TRADER: '40017',
+  ACCOUNT_NOT_BROKER: '40029',
+  FUTURES_ORDER_GET_NOT_FOUND: '40109',
+  FUTURES_ORDER_CANCEL_NOT_FOUND: '40768',
+  PLAN_ORDER_NOT_FOUND: '43025',
+  QTY_LESS_THAN_MINIMUM: '43006',
+  ORDER_NOT_FOUND: '43001',
+  /** Parameter verification exception margin mode == FIXED */
+  PARAMETER_EXCEPTION: '40808',
+  INSUFFICIENT_BALANCE: '40754',
+  SERVICE_RETURNED_ERROR: '40725',
+  FUTURES_POSITION_DIRECTION_EMPTY: '40017',
+  FUTURES_ORDER_TPSL_NOT_FOUND: '43020',
+} as const;