This pull request focuses on improving code documentation throughout the project by adding or enhancing JavaDoc comments for classes, methods, and records. These changes increase code readability and maintainability, making it easier for developers to understand the purpose and usage of various components, especially those related to chat interactions, DTOs, configuration, and exception handling.

Documentation improvements:

• Added detailed JavaDoc comments to the ChatService class and its key methods, providing clear descriptions of responsibilities, parameters, return values, and exception handling. [1] [2] [3] [4]
• Enhanced class-level JavaDoc for ChatMessage, clarifying its role and usage within chat sessions.
• Added JavaDoc to the Personality enum, explaining its purpose in representing Norse mythology-inspired personalities for chat.
• Introduced JavaDoc to DTO records, including OpenRouterRequestDTO and OpenRouterResponseDTO, describing their structure and usage in API interactions. [1] [2]
• Documented the RestClientConfiguration and GlobalExceptionHandler classes to clarify their configuration and exception handling roles within the application. [1] [2]

Summary by CodeRabbit

Release Notes

• Documentation
  • Enhanced internal code documentation to improve code clarity and maintainability across configuration, data transfer objects, domain models, and service classes. No changes to application functionality or user-facing features.