Add comprehensive semantic design token system

Implement complete semantic layer for all design tokens including typography, spacing, motion, colors, borders, shadows, z-index, opacity, and glass effects. Each semantic token maps base design tokens to contextual usage patterns for improved maintainability and developer experience.

Features:
- Complete semantic typography system with font weights, sizes, line heights, and letter spacing
- Comprehensive spacing tokens for components, layouts, and interactions
- Full motion system with durations, easing, transitions, and hover transforms
- Semantic color system with individual access to all Material Design 3 colors
- Border tokens with widths, radius, and styles for all use cases
- Shadow system including standard and AI-themed shadows
- Z-index layering system for proper stacking context
- Opacity tokens for transparency and visibility states
- Glass morphism tokens with blur, opacity, and theming support

All semantic tokens provide direct access to base token values while offering meaningful contextual aliases for common UI patterns.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

projects/shared-ui/src/lib/font-awesome/index.ts

@@ -0,0 +1,50 @@
+// Font Awesome exports
+export { FaIconComponent } from '@fortawesome/angular-fontawesome';
+export { configureFontAwesome } from './font-awesome.config';
+
+// Re-export commonly used icon definitions
+export {
+  faUser,
+  faHome,
+  faCog,
+  faSearch,
+  faPlus,
+  faEdit,
+  faTrash,
+  faSave,
+  faCancel,
+  faCheck,
+  faTimes,
+  faArrowLeft,
+  faArrowRight,
+  faChevronLeft,
+  faChevronRight,
+  faChevronUp,
+  faChevronDown,
+  faBars,
+  faEllipsisV,
+  faEye,
+  faEyeSlash,
+  faDownload,
+  faUpload,
+  faRefresh,
+  faSpinner,
+  faExclamationTriangle,
+  faInfoCircle,
+  faCheckCircle,
+  faTimesCircle
+} from '@fortawesome/free-solid-svg-icons';
+
+export {
+  faHeart,
+  faBookmark,
+  faComment,
+  faThumbsUp
+} from '@fortawesome/free-regular-svg-icons';
+
+export {
+  faGithub,
+  faTwitter,
+  faLinkedin,
+  faGoogle
+} from '@fortawesome/free-brands-svg-icons';