test: add comprehensive landing page unit tests (85 tests)

6 test files covering all landing page components:
- BentoGrid: search filtering, category pills, tool count, empty state
- Navbar: links, mobile menu, GitHub star count formatting, fetch
- HowItWorks: Docker command display, clipboard copy, terminal chrome
- FAQ: accordion expand/collapse, all questions rendered
- Contact: form fields, validation, Formspree submission, error states
- Components: Hero, TypingCursor, WhyChoose, Enterprise, Pricing,
  OpenSource, Footer (rendering, links, content verification)

Also updates vitest.config.ts with landing page aliases and automatic
JSX transform for Next.js components.

tests/unit/landing/how-it-works.test.tsx

@@ -0,0 +1,98 @@
+// @vitest-environment jsdom
+
+import { cleanup, fireEvent, render, screen, waitFor } from "@testing-library/react";
+import type React from "react";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+vi.mock("framer-motion", () => ({
+  motion: {
+    div: ({ children, ...props }: React.PropsWithChildren<Record<string, unknown>>) => (
+      <div {...props}>{children}</div>
+    ),
+  },
+  AnimatePresence: ({ children }: React.PropsWithChildren) => <>{children}</>,
+}));
+
+const writeTextMock = vi.fn().mockResolvedValue(undefined);
+Object.assign(navigator, {
+  clipboard: { writeText: writeTextMock },
+});
+
+import { HowItWorks } from "@landing/components/how-it-works";
+
+beforeEach(() => {
+  writeTextMock.mockClear();
+});
+
+afterEach(cleanup);
+
+const DOCKER_COMMAND =
+  "docker run -d --name ashim -p 1349:1349 -v ashim-data:/data ghcr.io/ashim-hq/ashim:latest";
+
+describe("HowItWorks", () => {
+  it("renders the section heading", () => {
+    render(<HowItWorks />);
+    expect(screen.getByText(/One command/)).toBeDefined();
+  });
+
+  it("renders the subtitle", () => {
+    render(<HowItWorks />);
+    expect(screen.getByText("Get started in seconds")).toBeDefined();
+  });
+
+  it("displays the Docker command", () => {
+    render(<HowItWorks />);
+    expect(screen.getByText(DOCKER_COMMAND)).toBeDefined();
+  });
+
+  it("displays the dollar sign prompt", () => {
+    render(<HowItWorks />);
+    expect(screen.getByText("$")).toBeDefined();
+  });
+
+  it("shows Copy label before clicking", () => {
+    render(<HowItWorks />);
+    expect(screen.getByText("Copy")).toBeDefined();
+  });
+
+  it("copies command to clipboard on click", async () => {
+    render(<HowItWorks />);
+    const button = screen.getByText(DOCKER_COMMAND).closest("button")!;
+    fireEvent.click(button);
+    expect(writeTextMock).toHaveBeenCalledWith(DOCKER_COMMAND);
+  });
+
+  it("shows Copied! feedback after clicking", async () => {
+    render(<HowItWorks />);
+    const button = screen.getByText(DOCKER_COMMAND).closest("button")!;
+    fireEvent.click(button);
+    expect(screen.getByText("Copied!")).toBeDefined();
+  });
+
+  it("sets a timeout to revert copy state", () => {
+    vi.useFakeTimers();
+    const spy = vi.spyOn(globalThis, "setTimeout");
+    render(<HowItWorks />);
+    const button = screen.getByText(DOCKER_COMMAND).closest("button")!;
+    fireEvent.click(button);
+    expect(spy).toHaveBeenCalledWith(expect.any(Function), 2000);
+    spy.mockRestore();
+    vi.useRealTimers();
+  });
+
+  it("renders the terminal window chrome", () => {
+    render(<HowItWorks />);
+    expect(screen.getByText("Quick Start")).toBeDefined();
+  });
+
+  it("links to documentation", () => {
+    render(<HowItWorks />);
+    const docsLink = screen.getByText("Read the docs");
+    expect(docsLink.closest("a")?.getAttribute("href")).toBe("https://docs.snapotter.com");
+  });
+
+  it("mentions platform support", () => {
+    render(<HowItWorks />);
+    expect(screen.getByText(/Linux, macOS, and Windows/)).toBeDefined();
+  });
+});