feat: add website components and pages for LexAI

- Implemented SiteHeader and SiteFooter components for consistent navigation and footer across the website.
- Created CommunityPage and ContributePage to provide information on community involvement and contribution guidelines.
- Developed DocsPage to serve as the main documentation hub, detailing features and installation instructions.
- Added HomePage to introduce LexAI and its functionalities, highlighting key features and privacy aspects.
- Established links.ts for centralized management of external links used throughout the website.
- Configured main.tsx for application entry point with React Router for navigation.
- Introduced styles.css for consistent styling across the website.
- Set up TypeScript configuration files for improved type checking and development experience.
- Configured Vite for building and serving the website.

docs/HANDOFF.md

@@ -4,8 +4,8 @@
 
 ## Current state
 
-- **Outcome:** Open-source monorepo laid out — Chrome moved to `packages/chrome`; OSS docs + Gitea templates added.
-- **Verified:** `chrome:typecheck` OK; `chrome:test` 64/64; `chrome:build` → `packages/chrome/.output/chrome-mv3/`.
-- **Artifacts:** root `LICENSE`, `README.md`, `CONTRIBUTING.md`, `CODE_OF_CONDUCT.md`; `.gitea/ISSUE_TEMPLATE/bug_report.md`; `.gitea/PULL_REQUEST_TEMPLATE.md`; package READMEs for chrome/vscode/cli.
-- **CI:** per-package workflows `ci-chrome.yml`, `ci-vscode.yml`, `ci-cli.yml` only; deploy/preview/release removed for later.
-- **Next smallest action:** Commit when ready.
+- **Outcome:** `packages/website` now uses the four-page structure: Home, Docs, Contribute, Community.
+- **Home:** hero + features + Getting started (Chrome / VS Code / CLI) + privacy.
+- **Routes:** `/` `/docs` `/contribute` `/community` (HashRouter).
+- **Verified:** `website:typecheck` + `website:build` passed.
+- **Next smallest action:** Deploy `packages/website` on Coolify (base `/packages/website`, static, publish `/dist`).