refactor: migrate to Angular standalone API and SSR support}
- Migrate from NgModule to standalone components and application configuration
- Add server-side rendering (SSR) support with main.server.ts and server.ts
- Convert app.module to app.config.ts using standalone API pattern
- Add ngsw-config.json for service worker configuration
- Remove deprecated http-request-counter.interceptor in favor of new interceptor pattern
- Refactor layout components to use new Angular patterns
- Update material module to standalone bootstrap approach
- Migrate web module services to standalone dependency injection
- Convert markdown processing to web worker with markdown.worker.ts
- Update Angular CLI configuration in angular.json for SSR builds
- Add server routing configuration in app.routes.server.ts
- Remove .vscode/launch.json debug configuration
- Update package.json dependencies and build scripts for standalone setup
- Refactor theme service and notification service for new DI system
- Add favicon.ico asset and update robots.txt
- Modernize TypeScript configuration for latest Angular version