TechNews

refactor(assets/hn_style.css, ai_agent.py): update styles and remove author field for better readability and responsiveness

feat(daily_job.yml, ai_agent.py): update cron schedule and add author to news brief

style(hn_style.css): add enhanced styling for header, tables, lists, and links

refactor: update CSS and Python script for modernized Hacker News style

refactor(main.py): reorganize and simplify main function for better readability and error handling