Initial commit: FA Design System source files

Copy of the Funeral Arranger design system components, theme, tokens,
and Storybook config from the original Parsons project. Pre-upgrade
baseline with React 18, MUI v5, Storybook 8.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/atoms/Link/Link.tsx

@@ -0,0 +1,36 @@
+import React from 'react';
+import MuiLink from '@mui/material/Link';
+import type { LinkProps as MuiLinkProps } from '@mui/material/Link';
+
+// ─── Types ───────────────────────────────────────────────────────────────────
+
+/** Props for the FA Link component */
+export type LinkProps = MuiLinkProps;
+
+// ─── Component ───────────────────────────────────────────────────────────────
+
+/**
+ * Navigation text link for the FA design system.
+ *
+ * Inline or standalone text link with FA brand styling — copper colour
+ * (brand.600) for WCAG AA compliance on white backgrounds. Underline
+ * appears on hover by default.
+ *
+ * Wraps MUI Link with FA theme tokens. Uses `color.text.brand`
+ * (#B0610F, 4.8:1 contrast ratio on white).
+ *
+ * Usage:
+ * ```tsx
+ * <Link href="/faq">Frequently Asked Questions</Link>
+ * <Link href="/contact" color="text.secondary">Contact Us</Link>
+ * ```
+ *
+ * For button-styled links, use `Button` with `component="a"` and `href`.
+ * For navigation menu items, use Link with `underline="none"`.
+ */
+export const Link = React.forwardRef<HTMLAnchorElement, LinkProps>((props, ref) => {
+  return <MuiLink ref={ref} {...props} />;
+});
+
+Link.displayName = 'Link';
+export default Link;