- Add comprehensive WorktimeTracker service with worktime estimation and cost distribution
- Implement full CLI interface with log, list, daily, estimate, distribute, report, delete, update commands
- Support flexible duration parsing (90, 1h30m, 2.5h) and time tracking with start/end times
- Add worktime estimation with equal and activity-based distribution methods
- Implement proportional cost distribution based on actual time spent on issues
- Create worktime database schema with entries, summaries, and cost distribution logging
- Add 24 comprehensive test cases covering all functionality with integration tests
- Support multiple output formats (table/JSON) and comprehensive reporting features
- Enable precise cost allocation per minute with audit trail for financial tracking
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Co-Authored-By: Claude <noreply@anthropic.com>