fixup(sp17-pp.2): lock-test producer constants for symmetry

Per code-quality review of a225926e5: ADVANTAGE_CLIP_SAFETY_FACTOR
(1.5) and ADVANTAGE_CLIP_EMA_ALPHA (0.01) were declared `pub` but not
asserted in the sp17_dueling_slot_layout_locked test. All other named
constants in the SP17 ISV block are pinned by the lock test; this
extends the same coverage to the two producer constants that the
Phase 5 advantage_clip_bound producer kernel will consume.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/ml/src/cuda_pipeline/sp14_isv_slots.rs

@@ -1042,6 +1042,9 @@ mod tests {
         // Category-1 dimensional safety bounds per `feedback_isv_for_adaptive_bounds`.
         assert_eq!(ADVANTAGE_CLIP_BOUND_MIN, 0.1);
         assert_eq!(ADVANTAGE_CLIP_BOUND_MAX, 100.0);
+        // Producer constants (consumed by Phase 5 advantage_clip_bound producer kernel).
+        assert_eq!(ADVANTAGE_CLIP_SAFETY_FACTOR, 1.5);
+        assert_eq!(ADVANTAGE_CLIP_EMA_ALPHA, 0.01);
     }
 
     #[test]