feat: probe presentation live target

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

@@ -0,0 +1,51 @@
+import { act, renderHook, waitFor } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { callOperation } from "../connection/api.js";
+import { initialDemoTimelineState } from "../demo/timeline/reducer.js";
+import { usePresentationTargetStatus } from "./usePresentationTargetStatus.js";
+
+vi.mock("../connection/api.js", () => ({ callOperation: vi.fn() }));
+const mockedCallOperation = vi.mocked(callOperation);
+
+beforeEach(() => mockedCallOperation.mockReset());
+
+describe("usePresentationTargetStatus", () => {
+  it("marks live target ready after workflow health succeeds", async () => {
+    mockedCallOperation.mockResolvedValue({
+      ok: true as const,
+      operation: "workflow.health",
+      label: "Health",
+      interpreted: { status: "ok", storeRoot: "store" },
+      exchange: { request: {}, response: {} },
+      equivalentCli: "uv run wf status",
+      durationMs: 2,
+    });
+
+    const { result } = renderHook(() =>
+      usePresentationTargetStatus(
+        { mode: "live", target: "http://127.0.0.1:8765/rpc", source: "default" },
+        initialDemoTimelineState,
+      ),
+    );
+
+    await waitFor(() => expect(result.current.kind).toBe("ready"));
+  });
+
+  it("falls back to replay when health fails", async () => {
+    mockedCallOperation.mockResolvedValue({
+      ok: false as const,
+      error: { code: "upstream_unreachable", message: "connection refused" },
+      exchange: { request: {}, response: {} },
+    });
+
+    const { result } = renderHook(() =>
+      usePresentationTargetStatus(
+        { mode: "live", target: "http://127.0.0.1:8765/rpc", source: "default" },
+        initialDemoTimelineState,
+      ),
+    );
+
+    await waitFor(() => expect(result.current.kind).toBe("failed"));
+    expect(result.current.label).toBe("Replay fallback");
+  });
+});