Restore back old navigation system

src/CharacterState.h

@@ -103,8 +103,7 @@ public:
     float modelScale     = 0.12f;
     Eigen::Quaternionf modelCorrectionRotation = Eigen::Quaternionf::Identity();
     bool  useGpuSkinning  = true;
-    //float collisionRadius = 0.45f;
-    float collisionRadius = 0.65f;
+    float collisionRadius = 0.45f;
     float interactionRadius = 0.0f;
 
     // --- Pathfinding data (serializable parts) ---