feat: implement auth, projects, and frontend foundation

apps/web/src/pages/dashboard.test.tsx

@@ -0,0 +1,54 @@
+import { fireEvent, render, screen, waitFor } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import { DashboardPage } from "./dashboard";
+
+const mockGet = vi.fn();
+
+vi.mock("../api/dashboard", () => ({
+  getDashboardSummary: (...args: unknown[]) => mockGet(...args)
+}));
+
+describe("DashboardPage", () => {
+  beforeEach(() => {
+    mockGet.mockReset();
+  });
+
+  it("shows loading then empty state when summary has no data", async () => {
+    mockGet.mockResolvedValue({
+      projects: 0,
+      repositories: 0,
+      sshKeys: 0,
+      recentActivity: []
+    });
+
+    render(<DashboardPage />);
+
+    expect(screen.getByText("Loading dashboard...")).toBeInTheDocument();
+    await waitFor(() => {
+      expect(screen.getByText("No activity yet")).toBeInTheDocument();
+    });
+  });
+
+  it("shows retry action when summary request fails", async () => {
+    mockGet.mockRejectedValueOnce(new Error("failed"));
+    mockGet.mockResolvedValueOnce({
+      projects: 2,
+      repositories: 5,
+      sshKeys: 1,
+      recentActivity: ["Created repo"]
+    });
+
+    render(<DashboardPage />);
+
+    await waitFor(() => {
+      expect(screen.getByText("Dashboard is unavailable")).toBeInTheDocument();
+    });
+
+    fireEvent.click(screen.getByRole("button", { name: "Retry" }));
+
+    await waitFor(() => {
+      expect(screen.getByText("2")).toBeInTheDocument();
+    });
+  });
+});