feat(06-03): comprehensive validation report and CLI validate command
- Created validation_report.py with comprehensive report generation
- generate_comprehensive_validation_report: combines positive, negative, sensitivity
- recommend_weight_tuning: provides targeted weight adjustment recommendations
- save_validation_report: persists report to file
- Created validate_cmd.py CLI command following score_cmd.py pattern
- Orchestrates positive controls, negative controls, sensitivity analysis
- Options: --force, --skip-sensitivity, --output-dir, --top-n
- Styled output with click.echo patterns
- Provenance tracking for all validation steps
- Updated main.py to register validate command
- Updated scoring.__init__.py to export validation_report functions
gbanyan
10f19f89f4