fix retry

src/utils/errors.ts

@@ -0,0 +1,15 @@
+export function isUnknownOrderError(error: unknown): boolean {
+  const message = extractMessage(error);
+  if (!message) return false;
+  return message.includes("Unknown order") || message.includes("code\":-2011");
+}
+
+export function extractMessage(error: unknown): string {
+  if (typeof error === "string") return error;
+  if (error instanceof Error) return error.message;
+  try {
+    return JSON.stringify(error);
+  } catch {
+    return String(error);
+  }
+}

src/utils/persistence.ts

@@ -1,37 +0,0 @@
-import fs from "fs/promises";
-import path from "path";
-
-const DATA_DIR = path.resolve(process.cwd(), "data");
-let dataDirReady = false;
-
-async function ensureDataDir(): Promise<void> {
-  if (dataDirReady) return;
-  await fs.mkdir(DATA_DIR, { recursive: true }).catch(() => undefined);
-  dataDirReady = true;
-}
-
-export async function loadState<T>(fileName: string): Promise<T | null> {
-  try {
-    await ensureDataDir();
-    const filePath = path.join(DATA_DIR, fileName);
-    const data = await fs.readFile(filePath, "utf8");
-    return JSON.parse(data) as T;
-  } catch (error: any) {
-    if (error?.code === "ENOENT") return null;
-    console.error(`[state] load ${fileName} failed`, error);
-    return null;
-  }
-}
-
-export async function saveState(fileName: string, state: unknown): Promise<void> {
-  try {
-    await ensureDataDir();
-    const filePath = path.join(DATA_DIR, fileName);
-    const tempPath = `${filePath}.tmp`;
-    const payload = JSON.stringify(state, null, 2);
-    await fs.writeFile(tempPath, payload, "utf8");
-    await fs.rename(tempPath, filePath);
-  } catch (error) {
-    console.error(`[state] save ${fileName} failed`, error);
-  }
-}