refactor: extract shared adapter utilities (safeInvoke + initManager)

Created src/exchanges/adapter-utils.ts with createSafeInvoke() and
createInitManager() factories. Converted 7/8 adapters to use shared
utilities, eliminating ~350 lines of duplicated retry/init/error-handling
boilerplate. Lighter adapter kept as-is (no retry logic by design).
Also translated Chinese comments in adapter.ts and order-schema.ts.

src/exchanges/order-schema.ts

@@ -13,9 +13,8 @@ export interface BaseOrderIntent {
 
 export interface LimitOrderIntent extends BaseOrderIntent {
   price: number;
-  // StandX TPSL 参数
-  slPrice?: number; // 止损价格
-  tpPrice?: number; // 止盈价格
+  slPrice?: number;
+  tpPrice?: number;
 }
 
 export interface MarketOrderIntent extends BaseOrderIntent {