- Add functions to convert between UTC and Beijing time in timezone utility.
- Update BidsService to return latest update and publish dates in Beijing time.
- Modify BidCrawlerService to store publish dates in UTC format.
- Change database timezone configuration to UTC for consistency.
- Add timezone support to database module (+08:00)
- Extract date formatting utilities to shared modules
- Standardize timezone handling across frontend and backend
- Improve date formatting consistency in UI components
- Refactor crawler page.goto options for better readability
