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/api-patterns/api-style.md

@@ -0,0 +1,42 @@
+# API Style Selection (2025)
+
+> REST vs GraphQL vs tRPC - Hangi durumda hangisi?
+
+## Decision Tree
+
+```
+Who are the API consumers?
+│
+├── Public API / Multiple platforms
+│   └── REST + OpenAPI (widest compatibility)
+│
+├── Complex data needs / Multiple frontends
+│   └── GraphQL (flexible queries)
+│
+├── TypeScript frontend + backend (monorepo)
+│   └── tRPC (end-to-end type safety)
+│
+├── Real-time / Event-driven
+│   └── WebSocket + AsyncAPI
+│
+└── Internal microservices
+    └── gRPC (performance) or REST (simplicity)
+```
+
+## Comparison
+
+| Factor | REST | GraphQL | tRPC |
+|--------|------|---------|------|
+| **Best for** | Public APIs | Complex apps | TS monorepos |
+| **Learning curve** | Low | Medium | Low (if TS) |
+| **Over/under fetching** | Common | Solved | Solved |
+| **Type safety** | Manual (OpenAPI) | Schema-based | Automatic |
+| **Caching** | HTTP native | Complex | Client-based |
+
+## Selection Questions
+
+1. Who are the API consumers?
+2. Is the frontend TypeScript?
+3. How complex are the data relationships?
+4. Is caching critical?
+5. Public or internal API?