feat: update accessibility guidelines and enhance component structure. Introduce new frontend accessibility conventions in AGENTS.md, including heading hierarchy and ARIA roles for dialogs and buttons. Refactor TourGuide and related components for lazy loading and improved user experience. Update ESLint configuration to enforce stricter TypeScript rules and add new dependencies for linting. Enhance various components with accessibility features and ensure consistent styling across the application.
Update PWA assets configuration, replace logo image, and enhance routing with new history and profile routes. Add sidebar navigation for user profile and history, and implement EditPackageModal component for package management. Refactor API key management to support multiple keys and improve test session handling.
