feat: add new skills and enhance server configuration. Introduce 'security-review' and 'test-driven-development' skills in skills-lock.json. Update turbo.json to include a test dependency. Create .env.example files for server and web applications to standardize environment variables. Implement security headers in server index.ts for improved security. Enhance ResultSection component to support onClear callback and update generation job handling for better session management. Add encryption for API keys in the backend and implement rate limiting across various routers to prevent abuse.