feat(web): add group chat mention support

src/web/auto-reply.test.ts

@@ -1006,6 +1006,70 @@ describe("web auto-reply", () => {
     fetchMock.mockRestore();
   });
 
+  it("requires mention in group chats and injects history when replying", async () => {
+    const sendMedia = vi.fn();
+    const reply = vi.fn().mockResolvedValue(undefined);
+    const sendComposing = vi.fn();
+    const resolver = vi.fn().mockResolvedValue({ text: "ok" });
+
+    let capturedOnMessage:
+      | ((msg: import("./inbound.js").WebInboundMessage) => Promise<void>)
+      | undefined;
+    const listenerFactory = async (opts: {
+      onMessage: (
+        msg: import("./inbound.js").WebInboundMessage,
+      ) => Promise<void>;
+    }) => {
+      capturedOnMessage = opts.onMessage;
+      return { close: vi.fn() };
+    };
+
+    await monitorWebProvider(false, listenerFactory, false, resolver);
+    expect(capturedOnMessage).toBeDefined();
+
+    await capturedOnMessage?.({
+      body: "hello group",
+      from: "123@g.us",
+      conversationId: "123@g.us",
+      chatId: "123@g.us",
+      chatType: "group",
+      to: "+2",
+      id: "g1",
+      senderE164: "+111",
+      senderName: "Alice",
+      selfE164: "+999",
+      sendComposing,
+      reply,
+      sendMedia,
+    });
+
+    expect(resolver).not.toHaveBeenCalled();
+
+    await capturedOnMessage?.({
+      body: "@bot ping",
+      from: "123@g.us",
+      conversationId: "123@g.us",
+      chatId: "123@g.us",
+      chatType: "group",
+      to: "+2",
+      id: "g2",
+      senderE164: "+222",
+      senderName: "Bob",
+      mentionedJids: ["999@s.whatsapp.net"],
+      selfE164: "+999",
+      selfJid: "999@s.whatsapp.net",
+      sendComposing,
+      reply,
+      sendMedia,
+    });
+
+    expect(resolver).toHaveBeenCalledTimes(1);
+    const payload = resolver.mock.calls[0][0];
+    expect(payload.Body).toContain("Chat messages since your last reply");
+    expect(payload.Body).toContain("Alice: hello group");
+    expect(payload.Body).toContain("@bot ping");
+  });
+
   it("emits heartbeat logs with connection metadata", async () => {
     vi.useFakeTimers();
     const logPath = `/tmp/warelay-heartbeat-${crypto.randomUUID()}.log`;