fix(feishu): catch thrown SDK errors for withdrawn reply targets

The Feishu Lark SDK can throw exceptions (SDK errors with .code or
AxiosErrors with .response.data.code) for withdrawn/deleted reply
targets, in addition to returning error codes in the response object.

Wrap reply calls in sendMessageFeishu and sendCardFeishu with
try-catch to handle thrown withdrawn/not-found errors (230011,
231003) and fall back to client.im.message.create, matching the
existing response-level fallback behavior.

Also extract sendFallbackDirect helper to deduplicate the
direct-send fallback block across both functions.

Closes #33496

extensions/feishu/src/send.reply-fallback.test.ts

@@ -102,4 +102,78 @@ describe("Feishu reply fallback for withdrawn/deleted targets", () => {
 
     expect(createMock).not.toHaveBeenCalled();
   });
+
+  it("falls back to create when reply throws a withdrawn SDK error", async () => {
+    const sdkError = Object.assign(new Error("request failed"), { code: 230011 });
+    replyMock.mockRejectedValue(sdkError);
+    createMock.mockResolvedValue({
+      code: 0,
+      data: { message_id: "om_thrown_fallback" },
+    });
+
+    const result = await sendMessageFeishu({
+      cfg: {} as never,
+      to: "user:ou_target",
+      text: "hello",
+      replyToMessageId: "om_parent",
+    });
+
+    expect(replyMock).toHaveBeenCalledTimes(1);
+    expect(createMock).toHaveBeenCalledTimes(1);
+    expect(result.messageId).toBe("om_thrown_fallback");
+  });
+
+  it("falls back to create when card reply throws a not-found AxiosError", async () => {
+    const axiosError = Object.assign(new Error("Request failed"), {
+      response: { status: 200, data: { code: 231003, msg: "The message is not found" } },
+    });
+    replyMock.mockRejectedValue(axiosError);
+    createMock.mockResolvedValue({
+      code: 0,
+      data: { message_id: "om_axios_fallback" },
+    });
+
+    const result = await sendCardFeishu({
+      cfg: {} as never,
+      to: "user:ou_target",
+      card: { schema: "2.0" },
+      replyToMessageId: "om_parent",
+    });
+
+    expect(replyMock).toHaveBeenCalledTimes(1);
+    expect(createMock).toHaveBeenCalledTimes(1);
+    expect(result.messageId).toBe("om_axios_fallback");
+  });
+
+  it("re-throws non-withdrawn thrown errors for text messages", async () => {
+    const sdkError = Object.assign(new Error("rate limited"), { code: 99991400 });
+    replyMock.mockRejectedValue(sdkError);
+
+    await expect(
+      sendMessageFeishu({
+        cfg: {} as never,
+        to: "user:ou_target",
+        text: "hello",
+        replyToMessageId: "om_parent",
+      }),
+    ).rejects.toThrow("rate limited");
+
+    expect(createMock).not.toHaveBeenCalled();
+  });
+
+  it("re-throws non-withdrawn thrown errors for card messages", async () => {
+    const sdkError = Object.assign(new Error("permission denied"), { code: 99991401 });
+    replyMock.mockRejectedValue(sdkError);
+
+    await expect(
+      sendCardFeishu({
+        cfg: {} as never,
+        to: "user:ou_target",
+        card: { schema: "2.0" },
+        replyToMessageId: "om_parent",
+      }),
+    ).rejects.toThrow("permission denied");
+
+    expect(createMock).not.toHaveBeenCalled();
+  });
 });