Close and archive the 0.9.9 milestone, record that the upstream clips stay unused, and harden the fallback test

docs/adr/0018-quaternius-stage2-runtime-rig.md

@@ -36,8 +36,10 @@ option 2). The mesh is not proportion-warped: it keeps its source LOD (3,199 wel
 - `NpcAvatar` maps the Quaternius joint names instead of the 13-core names.
 - Gear attach points are re-derived from the Quaternius skeleton (hip ≈0.87, shoulder ≈0.148/1.39,
   wrist ≈0.99, knee ≈0.52).
-- The Quaternius Idle and Walk clips are used directly — they are authored for the 62-joint rig,
-  so no retargeting pass is needed. Combat/gun/sword clips stay unused.
+- The 24 upstream clips ship as authoring reference only and are **not played at runtime**.
+  `NpcAvatar._animate()` drives the proxy pivots and `_sync_skeleton()` writes the bone poses, which
+  is what the FSM already needed for sitting, raising a hand and turning the head. Playing the clips
+  would replace that state machine rather than supplement it; revisiting this needs its own ADR.
 
 Option 1 (keep the 13-core names with Quaternius rest positions) is rejected in favour of the
 full source rig.

docs/development-status.md

@@ -28,8 +28,9 @@ and the active order/gaps in [`TODO.md`](../TODO.md).
   `npc_proportions.py` pass for the committed library.
 - 24-NPC smoke: 168 meshes, 152,464 triangles, 6.94 ms (50 ms budget).
 - Screenshot gate: 21 good / 0 bad; screen-design judge 21/21 match.
-- Release baseline: v0.9.8 is published; the 0.10.0 release candidate remains
-  gated on external playtest, legal/storefront, signing and platform-matrix work.
+- Release baseline: **v0.9.9** is published (Quaternius roster, accepted by the owner on
+  2026-11-06); the 0.10.0 release candidate remains gated on external playtest, legal/storefront,
+  signing and platform-matrix work.
 
 ## Known gaps