List of completed tasks:

• Familiarized with the project structure (onboarding).
• Removed social networks: VK and Yandex.
• Moved sensitive information to a separate properties file.
• Refactored tests to use an in-memory database (H2) instead of PostgreSQL during testing.
• Wrote tests for all public methods of the ProfileRestController.
• Refactored the method com.javarush.jira.bugtracking.attachment.FileUtil#upload to use a modern approach for working with the file system.
• Added new functionality: tagging tasks (REST API + service implementation).
• Implemented time tracking: calculated how long a task remained in the "In Progress" and "Testing" states.
• Created a Dockerfile for the main server.
• Created a docker-compose file to run the server container alongside the database and NGINX.