feat: 更新订单处理逻辑，将价格类型改为字符串以避免精度问题，并添加价格格式化函数

src/core/lib/order-plan.ts

@@ -2,7 +2,7 @@ import type { AsterOrder } from "../../exchanges/types";
 
 export interface OrderTarget {
   side: "BUY" | "SELL";
-  price: number;
+  price: string; // 改为字符串避免精度问题
   amount: number;
   reduceOnly: boolean;
 }
@@ -15,18 +15,14 @@ export function makeOrderPlan(
   const toCancel: AsterOrder[] = [];
 
   for (const order of openOrders) {
-    const price = Number(order.price);
-    if (!Number.isFinite(price)) {
-      toCancel.push(order);
-      continue;
-    }
+    const orderPrice = String(order.price);
     const reduceOnly = order.reduceOnly === true;
     const matchedIndex = targets.findIndex((target, index) => {
       return (
         unmatched.has(index) &&
         target.side === order.side &&
         target.reduceOnly === reduceOnly &&
-        price === target.price
+        orderPrice === target.price // 直接使用字符串比较
       );
     });
     if (matchedIndex >= 0) {