fix: preserve feishu message_id in agent-visible body (#27253) (thanks @xss925175263)

extensions/feishu/src/bot.test.ts

@@ -382,4 +382,39 @@ describe("handleFeishuMessage command authorization", () => {
       "clip.mp4",
     );
   });
+
+  it("includes message_id in BodyForAgent on its own line", async () => {
+    mockShouldComputeCommandAuthorized.mockReturnValue(false);
+
+    const cfg: ClawdbotConfig = {
+      channels: {
+        feishu: {
+          dmPolicy: "open",
+        },
+      },
+    } as ClawdbotConfig;
+
+    const event: FeishuMessageEvent = {
+      sender: {
+        sender_id: {
+          open_id: "ou-msgid",
+        },
+      },
+      message: {
+        message_id: "msg-message-id-line",
+        chat_id: "oc-dm",
+        chat_type: "p2p",
+        message_type: "text",
+        content: JSON.stringify({ text: "hello" }),
+      },
+    };
+
+    await dispatchMessage({ cfg, event });
+
+    expect(mockFinalizeInboundContext).toHaveBeenCalledWith(
+      expect.objectContaining({
+        BodyForAgent: "[message_id: msg-message-id-line]\nou-msgid: hello",
+      }),
+    );
+  });
 });