feat: add UI components for alert dialog, badge, checkbox, dialog, label, select, sheet, table, textarea

- Implemented AlertDialog component with overlay, content, header, footer, title, description, action, and cancel functionalities.
- Created Badge component with variant support for different styles.
- Developed Checkbox component with custom styling and indicator.
- Added Dialog component with trigger, close, overlay, content, header, footer, title, and description.
- Introduced Label component for form elements.
- Built Select component with trigger, content, group, item, label, separator, and scroll buttons.
- Created Sheet component with trigger, close, overlay, content, header, footer, title, and description.
- Implemented Table component with header, body, footer, row, head, cell, and caption.
- Added Textarea component with custom styling.
- Established API service for game management with CRUD operations and metadata search functionalities.
- Updated dependencies in package lock files.

.agents/skills/frontend-design/README.md

@@ -0,0 +1,35 @@
+# frontend-design
+
+A frontend design skill for [Claude Code](https://claude.com/claude-code) that builds **hot, sleek, sexy, usable, fun, and addictive** interfaces.
+
+Dark-first themes, terminal-inspired typography, neon accents, tactile micro-interactions, and visual discovery patterns — distilled from real projects into a reusable skill.
+
+## Install
+
+```bash
+npx skills add mager/frontend-design
+```
+
+## What it does
+
+- **Generate new UI** — Describe what you want and get components/pages in this style
+- **Restyle existing code** — Point it at your frontend and it'll apply the aesthetic
+- **Design guidance** — Ask for feedback and get opinionated direction
+
+## The aesthetic
+
+- Dark mode by default (rich blacks, not gray)
+- JetBrains Mono + Space Grotesk typography
+- Neon accent colors — cyan, purple, lime, gold, coral
+- Tactile hover interactions (lifts, glows, border transitions)
+- Visual discovery layouts (masonry walls, bento grids, dense scrollable content)
+- CSS custom properties for contextual theming
+- Mobile-first, always
+
+## Tech stack
+
+Adapts to whatever framework you're using. When starting fresh, prefers Astro, SvelteKit, or Next.js with custom CSS. Never suggests Bootstrap.
+
+## License
+
+MIT