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) {

src/core/order-coordinator.ts

@@ -1,6 +1,6 @@
 import type { ExchangeAdapter } from "../exchanges/adapter";
 import type { AsterOrder, CreateOrderParams } from "../exchanges/types";
-import { roundDownToTick, roundQtyDownToStep } from "../utils/math";
+import { roundDownToTick, roundQtyDownToStep, formatPriceToString } from "../utils/math";
 import { isUnknownOrderError } from "../utils/errors";
 import { isOrderPriceAllowedByMark } from "../utils/strategy";
 
@@ -122,7 +122,7 @@ export async function placeOrder(
   timers: OrderTimerMap,
   pendings: OrderPendingMap,
   side: "BUY" | "SELL",
-  price: number,
+  price: string, // 改为字符串价格
   amount: number,
   log: LogHandler,
   reduceOnly = false,
@@ -131,7 +131,8 @@ export async function placeOrder(
 ): Promise<AsterOrder | undefined> {
   const type = "LIMIT";
   if (isOperating(locks, type)) return;
-  if (!enforceMarkPriceGuard(side, price, guard, log, "限价单")) return;
+  const priceNum = Number(price);
+  if (!enforceMarkPriceGuard(side, priceNum, guard, log, "限价单")) return;
   const priceTick = opts?.priceTick ?? 0.1;
   const qtyStep = opts?.qtyStep ?? 0.001;
   const params: CreateOrderParams = {
@@ -139,7 +140,7 @@ export async function placeOrder(
     side,
     type,
     quantity: roundQtyDownToStep(amount, qtyStep),
-    price: roundDownToTick(price, priceTick),
+    price: priceNum, // 直接使用字符串转换的数字，不再格式化
     timeInForce: "GTX",
   };
   if (reduceOnly) params.reduceOnly = "true";