Accept ADR-0018 option 2: adopt the Quaternius 62-joint rig at runtime

docs/npc-model-sourcing.md

@@ -198,9 +198,10 @@ deltoid + hand) — both are the gate's rejection conditions.
 contract proportions; the gate fails and Stage 2 (a 62-joint runtime ADR) is indicated. Do not
 start the 12-variant rebuild on the warped base.
 
-[ADR-0018](adr/0018-quaternius-stage2-runtime-rig.md) records the Stage 2 decision: adopt the
-Quaternius source proportions at runtime (option 1: keep the 13-core names with Quaternius rest
-positions; option 2: ship the 62-joint rig), pending the owner's choice.
+[ADR-0018](adr/0018-quaternius-stage2-runtime-rig.md) records the Stage 2 decision (accepted
+2026-11-05, owner chose option 2): adopt the **Quaternius 62-joint rig at runtime**, keep the
+mesh at source LOD, re-derive gear attach points from the Quaternius skeleton, and use the
+Quaternius Idle/Walk clips directly (no retarget).
 
 ## Contract mismatch