gbanyan 5879ae9768 test(06-03): unit tests for all validation modules ...

- Created test_validation.py with 13 comprehensive tests
- create_synthetic_scored_db helper: designs scores for known genes high, housekeeping low
- Tests for negative controls:
  - test_compile_housekeeping_genes_structure
  - test_compile_housekeeping_genes_known_genes_present
  - test_validate_negative_controls_with_synthetic_data
  - test_validate_negative_controls_inverted_logic
- Tests for recall@k:
  - test_compute_recall_at_k
- Tests for sensitivity/perturbation:
  - test_perturb_weight_renormalizes
  - test_perturb_weight_large_negative
  - test_perturb_weight_invalid_layer
- Tests for validation report:
  - test_generate_comprehensive_validation_report_format
  - test_recommend_weight_tuning_all_pass
  - test_recommend_weight_tuning_positive_fail
  - test_recommend_weight_tuning_negative_fail
  - test_recommend_weight_tuning_sensitivity_fail
- All tests pass using synthetic DuckDB with tmp_path isolation

2026-02-12 04:50:17 +08:00

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