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/Divider/Divider.tsx

@@ -0,0 +1,39 @@
+import React from 'react';
+import MuiDivider from '@mui/material/Divider';
+import type { DividerProps as MuiDividerProps } from '@mui/material/Divider';
+
+// ─── Types ───────────────────────────────────────────────────────────────────
+
+/** Props for the FA Divider component */
+export type DividerProps = MuiDividerProps;
+
+// ─── Component ───────────────────────────────────────────────────────────────
+
+/**
+ * Visual separator for the FA design system.
+ *
+ * Thin line for separating content sections, navigation groups, or
+ * list items. Wraps MUI Divider with FA border tokens.
+ *
+ * Orientations:
+ * - `horizontal` (default) — full-width horizontal line
+ * - `vertical` — full-height vertical line (use inside flex containers)
+ *
+ * Variants:
+ * - `fullWidth` (default) — spans the full container
+ * - `inset` — indented from the left (for list item separators)
+ * - `middle` — indented from both sides
+ *
+ * Usage:
+ * ```tsx
+ * <Divider />
+ * <Divider orientation="vertical" flexItem />
+ * <Divider variant="inset" />
+ * ```
+ */
+export const Divider = React.forwardRef<HTMLHRElement, DividerProps>((props, ref) => {
+  return <MuiDivider ref={ref} {...props} />;
+});
+
+Divider.displayName = 'Divider';
+export default Divider;