- Remove no_results status enum value, treat zero results as successful searches
- Add processing status for initial log creation
- Create TelegramBotLogsHelper#status_color_class to eliminate view duplication
- Refactor TelegramBotTask to use Stopwatch class for timing measurements
- Add total_request_time column to track end-to-end request duration
- Update factories, tests, and views to support new status model
- Add comprehensive helper tests and maintain full test coverage