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-position.md

@@ -0,0 +1,33 @@
+# GetLocalPosition
+
+Get the position of this transform relative to the parent transform.
+
+## Syntax
+
+```cpp
+const Math::Vector3& GetLocalPosition() const;
+```
+
+## Returns
+
+Returns the local position as a `Math::Vector3` reference. The returned reference remains valid until the transform is modified.
+
+## Remarks
+
+Local position represents the position of this transform in parent space. If this transform has no parent, local position is the same as world position.
+
+## See Also
+
+- [SetLocalPosition](set-local-position)
+- [GetPosition](get-position)
+- [SetPosition](set-position)
+
+## Examples
+
+```cpp
+void Example(TransformComponent* transform) {
+    const Math::Vector3& localPos = transform->GetLocalPosition();
+    XC_LOG_INFO("Local position: ({}, {}, {})", 
+        localPos.x, localPos.y, localPos.z);
+}
+```