增强做市引擎和偏移做市引擎的限频控制逻辑，添加限频控制器以管理交易频率，确保在高频交易情况下的稳定性。同时，更新趋势引擎以支持限频机制，提升交易策略的有效性和响应能力。

src/utils/errors.ts

@@ -13,3 +13,26 @@ export function extractMessage(error: unknown): string {
     return String(error);
   }
 }
+
+export function isRateLimitError(error: unknown): boolean {
+  if (!error) return false;
+  if (typeof error === "object" && "status" in error) {
+    const status = Number((error as { status?: unknown }).status);
+    if (Number.isFinite(status) && status === 429) {
+      return true;
+    }
+  }
+  if (typeof error === "object" && "code" in error) {
+    const code = (error as { code?: unknown }).code;
+    if (code === 429 || code === "429") {
+      return true;
+    }
+  }
+  const message = extractMessage(error).toLowerCase();
+  return (
+    message.includes("429") ||
+    message.includes("too many requests") ||
+    message.includes("rate limit") ||
+    message.includes("request rate")
+  );
+}