docs: Add Component, GameObject, TransformComponent and Scene API documentation

- Add Component class documentation with lifecycle methods
- Add GameObject class documentation with component system
- Add TransformComponent documentation with transform methods
- Add Scene class documentation with GameObject management
- Add SceneManager singleton documentation with scene loading
- Update components.md overview with all component classes
- Update main.md navigation with Scene module

docs/api/components/transform-component/get-local-scale.md

@@ -0,0 +1,31 @@
+# GetLocalScale
+
+Get the scale of this transform relative to the parent transform.
+
+## Syntax
+
+```cpp
+const Math::Vector3& GetLocalScale() const;
+```
+
+## Returns
+
+Returns the local scale as a `Math::Vector3` reference.
+
+## Remarks
+
+Local scale represents the scale of this transform in parent space. If this transform has no parent, local scale is the same as world scale.
+
+## See Also
+
+- [SetLocalScale](set-local-scale)
+- [GetScale](get-scale)
+
+## Examples
+
+```cpp
+void Example(TransformComponent* transform) {
+    const Math::Vector3& scale = transform->GetLocalScale();
+    XC_LOG_INFO("Local scale: ({}, {}, {})", scale.x, scale.y, scale.z);
+}
+```