- Add mc_api_call_machine() function for MC_MACHINE_TOKEN auth
- Update mc_api_call() to use machine token when available
- Allows cron jobs to authenticate without cookie-based login
- No breaking changes - cookie auth still works for interactive use
- Also updates default API URL to production (was localhost)
- Add search result highlighting with match positions
- Implement advanced filters (type, status, date range)
- Add relevance scoring algorithm with recency/status boosts
- Add search history with localStorage persistence
- Create useSearch and useSearchHistory hooks
- Add filter UI with popover component
- Improve visual feedback and status icons
Task: 56ae2be4-fcf1-403a-87fb-ea9de966f456
