Correct AX637 decision agreement

AX637_BACKEND/README.md

@@ -456,9 +456,9 @@ The package includes the exact requests and complete JSON outputs used for board
 | --- | --- | --- | ---: |
 | `english` | Duplicate charge, refund request, cancellation threat | `billing` 0.9690; refund 0.8548; churn 0.8346 | 63/64 |
 | `multilingual` | Chinese duplicate charge and cancellation intent | `billing` 1.0000; refund 0.9936; churn 0.9307 | 60/64 |
-| `typed-decisions` | Active production API key exposed publicly | `contain` 0.4082; severity 1.7202; containment 0.6667 | 63/64 |
+| `typed-decisions` | Active production API key exposed publicly | `contain` 0.4082; severity 1.7202; containment 0.6667 | 62/64 |
 
-Differing cases occur at low-confidence boundaries, such as close choice labels, adjacent score levels, or noul probabilities near 0.5. Treat close probabilities as uncertain instead of relying only on the winning label.
+Differing cases occur at low-confidence boundaries, such as close choice labels, adjacent score levels, or noul probabilities near 0.5. For `noul`, agreement uses the inference rule `probability >= 0.5`; an exact 0.5 is counted as true. Treat close probabilities as uncertain instead of relying only on the winning label.
 
 ## Packaged Graph Constraints