fix: address presentation review findings

web/apps/console/src/presentation/OperatorChat.test.tsx

@@ -1,9 +1,12 @@
-import { render, screen } from "@testing-library/react";
-import { describe, expect, it } from "vitest";
+import { cleanup, render, screen } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { afterEach, describe, expect, it, vi } from "vitest";
 import { OperatorChat } from "./OperatorChat.js";
 import { initialPresentationState } from "./presentation-state.js";
 import type { AgentMessage } from "../demo/agent/events.js";
 
+afterEach(() => cleanup());
+
 describe("OperatorChat", () => {
   it("renders standard agent message parts", () => {
     const messages: ReadonlyArray<AgentMessage> = [
@@ -33,4 +36,77 @@ describe("OperatorChat", () => {
     expect(screen.getAllByText(/selectWorkflowNode/i).length).toBe(2);
     expect(screen.getByText(/tool result/i)).toBeInTheDocument();
   });
+
+  it("renders fallback messages when no agent messages are present", () => {
+    render(<OperatorChat state={initialPresentationState} />);
+
+    expect(screen.getByText("Prepare the thesis readiness report.")).toBeInTheDocument();
+    expect(screen.getByText(/Found prepared workflow recipe/)).toBeInTheDocument();
+  });
+
+  it("renders approval controls and wires decisions", async () => {
+    const user = userEvent.setup();
+    const onApprove = vi.fn();
+    const onDeny = vi.fn();
+    const messages: ReadonlyArray<AgentMessage> = [
+      {
+        id: "approval",
+        role: "assistant",
+        parts: [
+          {
+            type: "approval-request",
+            callId: "call-1",
+            name: "resumeIssueReview",
+            prompt: "Approve resuming?",
+          },
+        ],
+      },
+    ];
+
+    render(<OperatorChat state={initialPresentationState} messages={messages} onApprove={onApprove} onDeny={onDeny} />);
+
+    await user.click(screen.getByRole("button", { name: "Approve" }));
+    await user.click(screen.getByRole("button", { name: "Deny" }));
+    expect(onApprove).toHaveBeenCalledTimes(1);
+    expect(onDeny).toHaveBeenCalledTimes(1);
+  });
+
+  it("renders error and presentation action parts", () => {
+    const messages: ReadonlyArray<AgentMessage> = [
+      {
+        id: "mixed",
+        role: "assistant",
+        parts: [
+          { type: "presentation-action", action: { type: "selectWorkflowNode", nodeId: "review_issues" } },
+          { type: "error", message: "provider failed" },
+        ],
+      },
+    ];
+
+    render(<OperatorChat state={initialPresentationState} messages={messages} />);
+
+    expect(screen.getByText("Presentation action")).toBeInTheDocument();
+    expect(screen.getByText("selectWorkflowNode")).toBeInTheDocument();
+    expect(screen.getByText("provider failed")).toBeInTheDocument();
+  });
+
+  it("renders prepared run tool calls as workflow handoffs", () => {
+    const messages: ReadonlyArray<AgentMessage> = [
+      {
+        id: "start",
+        role: "assistant",
+        parts: [
+          {
+            type: "tool-call",
+            call: { id: "call-1", name: "startPreparedReportRun", input: { deploymentId: "demo" } },
+          },
+        ],
+      },
+    ];
+
+    render(<OperatorChat state={initialPresentationState} messages={messages} />);
+
+    expect(screen.getByText("Workflow operation")).toBeInTheDocument();
+    expect(screen.getByText("startPreparedReportRun")).toBeInTheDocument();
+  });
 });