fix: let agents download Feishu message resources

hub/src/feishu/client.ts

@@ -6,7 +6,7 @@
  * reactions, file download/upload, and the card action callback.
  */
 import * as lark from "@larksuiteoapi/node-sdk";
-import { readFile, writeFile, mkdir } from "node:fs/promises";
+import { readFile, mkdir } from "node:fs/promises";
 import { dirname } from "node:path";
 import type { FastifyBaseLogger } from "fastify";
 import { DEFAULT_MAX_MESSAGE_LENGTH, splitAtBoundary } from "./textStream.js";
@@ -487,20 +487,20 @@ export async function downloadMessageFile(
   messageId: string,
   fileKey: string,
   savePath: string,
+  resourceType: "image" | "file",
 ): Promise<void> {
   await mkdir(dirname(savePath), { recursive: true });
   try {
-    const res = await withRetry(async () => {
-      return rt.client.request({
-        method: "GET",
-        url: `/open-apis/im/v1/messages/${messageId}/resources/${fileKey}`,
-        params: { type: "file" },
-        responseType: "arraybuffer",
-      }) as Promise<{ data: Buffer }>;
+    await withRetry(async () => {
+      const resource = await rt.client.im.v1.messageResource.get({
+        params: { type: resourceType },
+        path: { message_id: messageId, file_key: fileKey },
+      });
+      await resource.writeFile(savePath);
     });
-    await writeFile(savePath, res.data);
   } catch (e) {
-    rt.logger.warn({ messageId, fileKey, err: e instanceof Error ? e.message : String(e) }, "downloadMessageFile failed");
+    rt.logger.error({ err: e, messageId, fileKey, resourceType, savePath }, "downloadMessageFile failed");
+    throw e;
   }
 }