Body step 2.1: climbing, mantling, crawling, legs, playground, 144 Hz

- Step rule + lower-body collider: no walking onto tables, steps <= 0.35 m
- Structural hand strength: two-hand mantle/pull-up works, one hand can't
- Arms aim from the physical shoulder horizontally, keep True Body pose vertically
- Crawl pose, crawl carry, 35 deg slope limit, ground feed-forward ignores
  play-space corrections (fixes a runaway feedback loop)
- Grab static world (climbing), procedural visual legs
- Playground sandbox; menu strength slider, spectator (old drag) and turn toggles
- Physics 144 Hz with interpolation; legacy chase-body spikes pin 90 Hz
- RagdollSpike: 27 phases incl. mantle, pull-up, crawl, ledge drop, ramps

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/AnchorMoveMode.cs

@@ -1,7 +1,12 @@
 using Godot;
 
+// The old grab-the-air movement. Since the ragdoll player (body step 2) it is only the SPECTATOR
+// mode (menu → Player → Spectator), where there is no body; off by default. Known issues kept as-is
+// (owner, 2026-10-02): two-hand turning isn't 2-anchor based, simultaneous two-hand moves act weird.
 public partial class AnchorMoveMode : Node
 {
+    public static bool Enabled;
+
     private const float GripThreshold = 0.6f;
 
     private XROrigin3D _origin;
@@ -25,6 +30,13 @@ public partial class AnchorMoveMode : Node
 
     public override void _Process(double delta)
     {
+        if (!Enabled)
+        {
+            _wasTwoHand = false;
+            _leftPrev = _left.Position;
+            _rightPrev = _right.Position;
+            return;
+        }
         bool leftGrip = _left.GetFloat("grip") > GripThreshold && !PropGrabber.IsGrabbing(_left);
         bool rightGrip = _right.GetFloat("grip") > GripThreshold && !PropGrabber.IsGrabbing(_right);