fix: reply to Feishu trigger messages

hub/test/unit/feishu-client.test.ts

@@ -34,6 +34,23 @@ describe("Feishu client helpers", () => {
     await expect(sendTextMessage(rt, "chat-1", "hello")).resolves.toBe("message-1");
   });
 
+  it("replies to a message without enabling Feishu topic mode", async () => {
+    const messageCreate = vi.fn();
+    const messageReply = vi.fn(async () => ({ data: { message_id: "reply-1" } }));
+    const rt = mockRuntime({ fileCreate: vi.fn(), messageCreate, messageReply });
+
+    await expect(sendTextMessage(rt, "chat-1", "hello", { replyToMessageId: "m-trigger" })).resolves.toBe("reply-1");
+
+    expect(messageCreate).not.toHaveBeenCalled();
+    expect(messageReply).toHaveBeenCalledWith({
+      path: { message_id: "m-trigger" },
+      data: {
+        msg_type: "text",
+        content: JSON.stringify({ text: "hello" }),
+      },
+    });
+  });
+
   it("sends long text in chunks and returns the last successful message id", async () => {
     let messageNumber = 0;
     const messageCreate = vi.fn(async () => ({ data: { message_id: `message-${++messageNumber}` } }));
@@ -70,6 +87,7 @@ describe("Feishu client helpers", () => {
 function mockRuntime(options: {
   readonly fileCreate: (payload: unknown) => Promise<unknown>;
   readonly messageCreate: (payload: unknown) => Promise<unknown>;
+  readonly messageReply?: (payload: unknown) => Promise<unknown>;
   readonly contactBasicBatch?: (payload: unknown) => Promise<unknown>;
   readonly request?: (payload: unknown) => Promise<unknown>;
 }): FeishuRuntime {
@@ -86,7 +104,10 @@ function mockRuntime(options: {
       im: {
         v1: {
           file: { create: options.fileCreate },
-          message: { create: options.messageCreate },
+          message: {
+            create: options.messageCreate,
+            reply: options.messageReply ?? vi.fn(async () => ({ data: { message_id: "reply-1" } })),
+          },
         },
       },
     } as unknown as FeishuRuntime["client"],