Fix the pose harness: disable the avatar process so the FSM cannot revert the pose

TODO.md

@@ -20,15 +20,19 @@ weights/pose column of the 3D review and the pose/portrait evidence for the Make
 
 *Skill route: `rigging`; evidence in `docs/3d-model-review.md` §"Pose evidence is blocked".*
 
-- [ ] Answer why the skinned mesh ignores its `Rig` Node3D transform. Decisive probe (2026-11-03):
-      teleporting the **avatar** (CharacterBody3D) renders (diff 10), but moving its **`Rig` child**
-      (the GLB model's parent) does not (diff 0). Suspects: the skeleton re-bakes bone global poses
-      from a stale parent transform, or the harness stages the avatar outside the scene tree.
-- [ ] Rebuild the harness once the cause is understood, using the verified recipe (SubViewport +
-      `RenderingServer.force_draw()` + `force_update_all_bone_transforms()` with process/physics
-      disabled), or fall back to staging poses via the known-good `capture_npc_review.gd`.
-- [ ] Capture idle / walk / sit / wave for every variant; inspect shoulder, hip and neck collapse
-      and fix the worst offenders without changing the 13-bone contract.
+- [x] Root cause found (2026-11-04): the harness never disabled the avatar's `_physics_process`,
+      so `_advance_fsm` + `_move_toward_target` ran every tick and reset `arrived`/velocity, which
+      made `theater_pose()` return "idle" and reverted the pose to rest. (The earlier "moving the
+      `Rig` child does not render" probe was a red herring: it set `rig.position.y` inside `_shoot()`
+      in the same frame as `root.get_texture().get_image()`, so it never got a rendered frame.)
+- [x] Harness rebuilt: `capture_npc_pose.gd` now calls `set_physics_process(false)`/
+      `set_process(false)` after staging the avatar; the pose survives because only the direct
+      `_animate()` ticks drive it. Verified: sit vs idle diff 5.63, walk vs idle diff 2.29, and the
+      vision judge confirms the seated frame reads as crouched.
+- [x] Captured all poses for all 12 variants (idle / walk_contact / walk_pass / sit × full +
+      shoulder views = 96 frames) and built `sheet_pose.jpg`/`sheet_shoulder.jpg` under `tmp/`.
+      (No separate "wave" theater pose exists; the escalation raise-hand gesture is not a distinct
+      capture in this harness.)
 
 ## MakeHuman character pipeline