add e2e contract write tests

src/constants/enum.ts

@@ -54,6 +54,12 @@ export const API_ERROR_CODE = {
   INSUFFICIENT_BALANCE_FOR_ORDER_COST_LINEAR: 130080,
   SAME_SLTP_MODE_LINEAR: 130150,
   RISK_ID_NOT_MODIFIED: 134026,
+  CONTRACT_ORDER_NOT_EXISTS: 140001,
+  CONTRACT_INSUFFICIENT_BALANCE: 140007,
+  CONTRACT_POSITION_MODE_NOT_MODIFIED: 140025,
+  CONTRACT_MARGIN_MODE_NOT_MODIFIED: 140026,
+  CONTRACT_RISK_LIMIT_INFO_NOT_EXISTS: 140031,
+  CONTRACT_SET_LEVERAGE_NOT_MODIFIED: 140043,
   /** E.g. USDC Options trading, trying to access a symbol that is no longer active */
   CONTRACT_NAME_NOT_EXIST: 3100111,
   ORDER_NOT_EXIST: 3100136,

src/types/request/contract.ts

@@ -68,7 +68,7 @@ export interface ContractPositionsRequest {
 
 export interface ContractSetAutoAddMarginRequest {
   symbol: string;
-  side: string;
+  side: 'Buy' | 'Sell';
   autoAddMargin: 1 | 0;
   positionIdx?: 0 | 1 | 2;
 }