chore(scripts): rename script API to GetComponent/TryGetComponent; misc

Clearer accessor naming on ScriptBehavior (Get -> GetComponent,
TryGet -> TryGetComponent), WASDMove follows. Teleport marked const
(JPH Ref does not propagate constness). Spinner: auto-rotation
disabled for the moment, registration switched from the registration
macro to an explicit lambda to verify the mechanism.

Engine/include/Engine/Physics/CharacterController.h

@@ -55,7 +55,7 @@ namespace Engine {
         void Jump(f32 speed);   // 垂直速度置 speed（着地方向才有效）
         bool IsGrounded() const;
         glm::vec3 GetPosition() const;
-        void Teleport(const glm::vec3& position);   // 编辑器拖动
+        void Teleport(const glm::vec3& position) const;   // 编辑器拖动
 
         const Params& GetParams() const { return m_Params; }
 

Engine/include/Engine/Scripting/Script.h

@@ -51,12 +51,12 @@ namespace Engine {
             }
 
             template<typename T>
-            T& Get() {
+            T& GetComponent() {
                 return m_Scene->GetRegistry().get<T>(m_Entity);
             }
 
             template<typename T>
-            T* TryGet() {
+            T* TryGetComponent() {
                 return m_Scene->GetRegistry().try_get<T>(m_Entity);
             }