feat: add 33 skills from vudovn/antigravity-kit

- Added: api-patterns, app-builder, architecture, bash-linux, behavioral-modes,
  clean-code, code-review-checklist, database-design, deployment-procedures,
  docker-expert, documentation-templates, game-development, geo-fundamentals,
  i18n-localization, lint-and-validate, mobile-design, nestjs-expert,
  nextjs-best-practices, nodejs-best-practices, parallel-agents,
  performance-profiling, plan-writing, powershell-windows, prisma-expert,
  python-patterns, react-patterns, red-team-tactics, seo-fundamentals,
  server-management, tailwind-patterns, tdd-workflow, typescript-expert,
  vulnerability-scanner
- Updated README: skill count 179 → 223
- Added credit for vudovn/antigravity-kit (MIT License)

Source: https://github.com/vudovn/antigravity-kit

skills/app-builder/templates/monorepo-turborepo/TEMPLATE.md

@@ -0,0 +1,90 @@
+---
+name: monorepo-turborepo
+description: Turborepo monorepo template principles. pnpm workspaces, shared packages.
+---
+
+# Turborepo Monorepo Template
+
+## Tech Stack
+
+| Component | Technology |
+|-----------|------------|
+| Build System | Turborepo |
+| Package Manager | pnpm |
+| Apps | Next.js, Express |
+| Packages | Shared UI, Config, Types |
+| Language | TypeScript |
+
+---
+
+## Directory Structure
+
+```
+project-name/
+├── apps/
+│   ├── web/             # Next.js app
+│   ├── api/             # Express API
+│   └── docs/            # Documentation
+├── packages/
+│   ├── ui/              # Shared components
+│   ├── config/          # ESLint, TS, Tailwind
+│   ├── types/           # Shared types
+│   └── utils/           # Shared utilities
+├── turbo.json
+├── pnpm-workspace.yaml
+└── package.json
+```
+
+---
+
+## Key Concepts
+
+| Concept | Description |
+|---------|-------------|
+| Workspaces | pnpm-workspace.yaml |
+| Pipeline | turbo.json task graph |
+| Caching | Remote/local task caching |
+| Dependencies | `workspace:*` protocol |
+
+---
+
+## Turbo Pipeline
+
+| Task | Depends On |
+|------|------------|
+| build | ^build (dependencies first) |
+| dev | cache: false, persistent |
+| lint | ^build |
+| test | ^build |
+
+---
+
+## Setup Steps
+
+1. Create root directory
+2. `pnpm init`
+3. Create pnpm-workspace.yaml
+4. Create turbo.json
+5. Add apps and packages
+6. `pnpm install`
+7. `pnpm dev`
+
+---
+
+## Common Commands
+
+| Command | Description |
+|---------|-------------|
+| `pnpm dev` | Run all apps |
+| `pnpm build` | Build all |
+| `pnpm --filter @name/web dev` | Run specific app |
+| `pnpm --filter @name/web add axios` | Add dep to app |
+
+---
+
+## Best Practices
+
+- Shared configs in packages/config
+- Shared types in packages/types
+- Internal packages with `workspace:*`
+- Use Turbo remote caching for CI