feat: 重构订单路由逻辑，添加订单意图类型以支持多交易所订单处理

src/exchanges/order-schema.ts

@@ -0,0 +1,42 @@
+import type { ExchangeAdapter } from "./adapter";
+import type { OrderSide, TimeInForce } from "./types";
+
+export interface BaseOrderIntent {
+  adapter: ExchangeAdapter;
+  symbol: string;
+  side: OrderSide;
+  quantity: number;
+  reduceOnly?: boolean;
+  closePosition?: boolean;
+  timeInForce?: TimeInForce | "GTX";
+}
+
+export interface LimitOrderIntent extends BaseOrderIntent {
+  price: number;
+}
+
+export interface MarketOrderIntent extends BaseOrderIntent {
+  expectedPrice?: number | null;
+}
+
+export interface StopOrderIntent extends BaseOrderIntent {
+  stopPrice: number;
+  triggerType?: "UNSPECIFIED" | "TAKE_PROFIT" | "STOP_LOSS";
+}
+
+export interface TrailingStopOrderIntent extends BaseOrderIntent {
+  activationPrice: number;
+  callbackRate: number;
+}
+
+export interface ClosePositionIntent extends BaseOrderIntent {
+  expectedPrice?: number | null;
+}
+
+export type ExchangeOrderType = "limit" | "market" | "stop" | "trailingStop" | "close";
+
+export function toStringBoolean(value: boolean | undefined): "true" | "false" | undefined {
+  if (value === undefined) return undefined;
+  return value ? "true" : "false";
+}
+