Add comprehensive library expansion with new components and demos

- Add new libraries: ui-accessibility, ui-animations, ui-backgrounds, ui-code-display, ui-data-utils, ui-font-manager, hcl-studio
- Add extensive layout components: gallery-grid, infinite-scroll-container, kanban-board, masonry, split-view, sticky-layout
- Add comprehensive demo components for all new features
- Update project configuration and dependencies
- Expand component exports and routing structure
- Add UI landing pages planning document

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

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

projects/ui-animations/README.md

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+# UI Animations
+
+A comprehensive CSS animation library with Angular services and directives for programmatic control.
+
+## Features
+
+- **Pure CSS animations** - Framework agnostic, works everywhere
+- **Angular integration** - Services and directives for programmatic control
+- **Comprehensive collection** - Entrance, exit, emphasis, and transition animations
+- **Design system integration** - Uses semantic motion tokens for consistent timing and easing
+- **Utility classes** - Animation timing, delays, and control utilities
+- **SCSS mixins** - Create custom animations easily
+
+## Installation
+
+```bash
+npm install ui-animations
+```
+
+## Usage
+
+### Import Styles
+
+Add to your global styles or component styles:
+
+```scss
+// Complete animation library
+@use 'ui-animations/src/styles' as animations;
+
+// Or import specific modules
+@use 'ui-animations/src/styles/animations/entrances';
+@use 'ui-animations/src/styles/animations/emphasis';
+@use 'ui-animations/src/styles/utilities/animation-utilities';
+```
+
+### CSS Classes
+
+Simply add animation classes to your HTML elements:
+
+```html
+<!-- Entrance animations -->
+<div class="animate-fade-in">Fade in animation</div>
+<div class="animate-slide-in-up animation-delay-200">Delayed slide up</div>
+
+<!-- Emphasis animations -->
+<button class="animate-bounce">Bouncing button</button>
+<div class="animate-pulse animation-infinite">Pulsing element</div>
+
+<!-- Exit animations -->
+<div class="animate-fade-out">Fade out animation</div>
+```
+
+### Angular Service
+
+```typescript
+import { UiAnimationsService } from 'ui-animations';
+
+constructor(private animationService: UiAnimationsService) {}
+
+// Animate an element
+animateElement() {
+  const element = document.getElementById('my-element');
+  this.animationService.animateOnce(element, 'animate-bounce');
+}
+
+// Animate with callback
+animateWithCallback() {
+  const element = document.getElementById('my-element');
+  this.animationService.animate(element, 'animate-fade-out', () => {
+    console.log('Animation completed!');
+  });
+}
+```
+
+### Angular Directive
+
+```typescript
+import { AnimateDirective } from 'ui-animations';
+
+@Component({
+  imports: [AnimateDirective]
+})
+```
+
+```html
+<!-- Immediate animation -->
+<div uiAnimate="animate-fade-in-up">Auto animates on load</div>
+
+<!-- Hover trigger -->
+<div uiAnimate="animate-bounce" [animationTrigger]="'hover'">
+  Hover to animate
+</div>
+
+<!-- Click trigger with single use -->
+<button uiAnimate="animate-tada" [animationTrigger]="'click'" [animationOnce]="true">
+  Click me!
+</button>
+```
+
+## Animation Categories
+
+### Entrances
+- `animate-fade-in` - Basic fade in
+- `animate-fade-in-up/down/left/right` - Fade with direction
+- `animate-slide-in-up/down` - Slide animations
+- `animate-zoom-in` - Scale up animation
+- `animate-rotate-in` - Rotate entrance
+
+### Exits
+- `animate-fade-out` - Basic fade out
+- `animate-fade-out-up/down/left/right` - Fade with direction
+- `animate-slide-out-up/down` - Slide animations
+- `animate-zoom-out` - Scale down animation
+- `animate-rotate-out` - Rotate exit
+
+### Emphasis
+- `animate-bounce` - Bouncing effect
+- `animate-shake` - Horizontal shake
+- `animate-pulse` - Scaling pulse
+- `animate-wobble` - Wobble motion
+- `animate-tada` - Celebration animation
+- `animate-heartbeat` - Heart beat effect
+
+### Utilities
+- `animation-delay-100/200/300/500/1000` - Animation delays
+- `animation-duration-fast/normal/slow/slower` - Duration control
+- `animation-infinite/once/twice` - Iteration control
+- `animation-paused/running` - Playback control
+
+## SCSS Mixins
+
+Create custom animations using provided mixins with semantic tokens:
+
+```scss
+@use 'ui-animations/src/styles/mixins/animation-mixins' as mixins;
+@use 'ui-design-system/src/styles/semantic/motion' as motion;
+
+.my-custom-animation {
+  @include mixins.animate(myKeyframes, motion.$semantic-motion-duration-normal, motion.$semantic-motion-easing-ease-out);
+}
+
+.hover-effect {
+  @include mixins.hover-animation(transform, scale(1.1), motion.$semantic-motion-duration-fast);
+}
+
+.loading-spinner {
+  @include mixins.loading-animation(40px, #007bff);
+}
+```
+
+## Design System Integration
+
+All animations now use semantic motion tokens from the design system:
+
+- **Durations**: `$semantic-motion-duration-fast`, `$semantic-motion-duration-normal`, `$semantic-motion-duration-slow`, etc.
+- **Easing**: `$semantic-motion-easing-ease-out`, `$semantic-motion-easing-spring`, `$semantic-motion-easing-bounce`, etc.
+- **Spacing**: Animation distances use semantic spacing tokens for consistency
+- **Timing**: Delays use semantic transition timing tokens
+
+This ensures animations are consistent with your design system's motion principles.
+
+## Demo
+
+Visit the demo application to see all animations in action and experiment with different options.