Resolve "Validate Artemis Exercises in Sharing Platform for compatibility"

Related to #588 (closed)

Summary by CodeRabbit

• New Features

  • Introduced Artemis project validation service with detailed logging and email notifications for invalid projects.
  • Added admin UI for validation management with real-time log streaming and control.
  • Added REST endpoints to trigger validation, retrieve logs, and stop log streaming.

• Improvements

  • Refined security configuration for management API paths.
  • Enhanced Elasticsearch management API and UI with log stopping capability.
  • Improved admin index management UI with stop button and reactive log updates.
  • Added detailed plugin health status history tracking and display.
  • Centralized task scheduling with distinct Spring TaskSchedulers for general and indexing tasks.
  • Replaced manual executor services with Spring-managed schedulers for async tasks.
  • Replaced synchronized blocks with explicit ReentrantLock locking for thread safety in backend services.
  • Improved backend logging with enhanced log holder and controlled stoppability.
  • Added internationalization support for validation views in English and German.

• Bug Fixes

  • Added null checks in review access methods to prevent errors.
  • Fixed naming inconsistency in application properties.

• Refactor

  • Migrated Angular forms from typed to untyped classes and updated tests accordingly.
  • Replaced Moment.js with date-fns and native Date objects for date handling.
  • Updated Angular dependency injection to use inject() function.
  • Modularized review and validation management features with lazy loading.
  • Streamlined HTTP services with stronger typing and centralized endpoint config.
  • Removed deprecated Angular entryComponents arrays from modules.
  • Replaced Lodash with native JavaScript array methods in bookmarks component.
  • Enhanced markdown viewer KaTeX rendering using reflection hack.
  • Refined log polling in admin components to use reactive streams with error handling.
  • Simplified REST controller annotations by removing explicit path variable names.
  • Reorganized admin index management component for reactive log streaming and error handling.
  • Replaced synchronized blocks with explicit locking using ReentrantLock in multiple classes.
  • Refactored multiple Angular components and services to use untyped form builders and include ReactiveFormsModule in tests.
  • Centralized API endpoint URL construction via application config service.
  • Improved log management with trimming and reactive updates in admin components.

• Chores

  • Upgraded Angular and related dependencies from v13 to v14.
  • Added English and German localization files for validation features.
  • Improved code style, formatting, and import order consistency.
  • Added and updated unit tests for new and existing services.
  • Updated CI configuration to include Artemis connector token environment variable.
  • Enhanced pre-commit hooks to run lint fixes automatically.
  • Adjusted lint-staged and VSCode debug configurations for better developer experience.
  • Updated TypeScript target to ES2020 for modern JavaScript features.
  • Fixed naming inconsistencies in configuration properties.
  • Updated package.json to upgrade dependencies and remove unused packages.
  • Cleaned up Angular module declarations by removing deprecated arrays and unused components.