feat: publish shared task and reply activities through MCP

e2e/models/ActivitiesPage.ts

@@ -0,0 +1,56 @@
+import type { Page } from "@playwright/test";
+
+export class ActivitiesPage {
+  constructor(readonly page: Page) {}
+  card(id: string) {
+    return this.page.locator(`[data-activity-id="${id}"]`);
+  }
+  async expand(id: string) {
+    await this.card(id).getByRole("button", { expanded: false }).click();
+  }
+  async openReply(id: string) {
+    await this.expand(id);
+    await this.card(id)
+      .getByRole("link", { name: /^Review reply to / })
+      .click();
+  }
+  complete(title: string) {
+    return this.page.getByRole("button", { name: `Complete ${title}`, exact: true });
+  }
+  restore(title: string) {
+    return this.page.getByRole("button", { name: `Restore ${title}`, exact: true });
+  }
+  get draft() {
+    return this.page.getByRole("textbox", { name: "Reply draft", exact: true });
+  }
+  get saveDraft() {
+    return this.page.getByRole("button", { name: "Save draft", exact: true });
+  }
+  get useProposedDraft() {
+    return this.page.getByRole("button", { name: "Use proposed draft", exact: true });
+  }
+  get later() {
+    return this.page.getByRole("button", { name: "Later", exact: true });
+  }
+  get bringBack() {
+    return this.page.getByRole("button", { name: "Bring back", exact: true });
+  }
+  get notNeeded() {
+    return this.page.getByRole("button", { name: "Not needed", exact: true });
+  }
+  get sources() {
+    return this.page.getByRole("region", { name: "Source excerpts" });
+  }
+  get details() {
+    return this.page.getByRole("region", { name: "Message details" });
+  }
+  action(title: string) {
+    return this.page
+      .getByRole("navigation", { name: "Conversation actions" })
+      .getByRole("button", { name: title, exact: true });
+  }
+  async saveReply(text: string) {
+    await this.draft.fill(text);
+    await this.saveDraft.click();
+  }
+}