feat(feishu): add replyInThread configuration for message replies (openclaw#27325) thanks @kcinzgg

Verified:
- pnpm build
- pnpm check
- pnpm test:macmini

Co-authored-by: kcinzgg <13964709+kcinzgg@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

extensions/feishu/src/bot.test.ts

@@ -661,4 +661,42 @@ describe("handleFeishuMessage command authorization", () => {
       }),
     );
   });
+
+  it("uses message_id as topic root when group_topic + replyInThread and no root_id", async () => {
+    mockShouldComputeCommandAuthorized.mockReturnValue(false);
+
+    const cfg: ClawdbotConfig = {
+      channels: {
+        feishu: {
+          groups: {
+            "oc-group": {
+              requireMention: false,
+              groupSessionScope: "group_topic",
+              replyInThread: "enabled",
+            },
+          },
+        },
+      },
+    } as ClawdbotConfig;
+
+    const event: FeishuMessageEvent = {
+      sender: { sender_id: { open_id: "ou-topic-init" } },
+      message: {
+        message_id: "msg-new-topic-root",
+        chat_id: "oc-group",
+        chat_type: "group",
+        message_type: "text",
+        content: JSON.stringify({ text: "create topic" }),
+      },
+    };
+
+    await dispatchMessage({ cfg, event });
+
+    expect(mockResolveAgentRoute).toHaveBeenCalledWith(
+      expect.objectContaining({
+        peer: { kind: "group", id: "oc-group:topic:msg-new-topic-root" },
+        parentPeer: { kind: "group", id: "oc-group" },
+      }),
+    );
+  });
 });