TSDSUTIL Phase 1 A16-A19 Corpus V4
Harness: 0.4.4
Cases: 138
V3 baseline: 128 PASS / 10 FAIL
V4 calibration changes: P1-A19-051 matcher; P1-A18-031 legitimate recovery diagnostic expectation.
Expected V107 baseline shape: 129 PASS / 9 FAIL.
Preserved V107 discrepancies: P1-A16-008, P1-A16-009, P1-A16-013, P1-A17-001, P1-A17-002, P1-A17-013, P1-A17-014, P1-A18-031, P1-A19-069
