test(commands): add comprehensive test suite for query command

- Add test suite following the same pattern as track_test.go
- Test all query command scenarios including AI service errors
- Test auto-run configuration for view/edit/delete commands
- Test system context extraction and command execution
- Add MockAIService for testing AI interactions
- Achieve complete test coverage for query.go functionality

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: AnnatarHe