feat: add prompt configuration and implement article text retrieval functionality

feat: add article handling routes and implement article management functionality

feat: implement topic subscription routes and handler methods

feat: reorganize repository structure and implement topic subscription functionality

feat: enhance user authentication and add topic subscription functionality

feat: convert text and summary to lowercase in ElasticModel before indexing

feat: integrate Markdown and Elastic services into CronJobArticleService

feat: add unit test for updating summary in ElasticService

feat: refactor Elastic model and enhance ElasticService with new methods for document management

feat: add markdown processing to CronJobArticleService and implement related tests

feat: add AI configuration and implement AI service tests

feat: implement AI service for text summarization and add unit tests

feat: add ElasticSearch integration and refactor related components, add unit test

save article to db

refactor: update import paths to move database and AWS handling to infrastructure package