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-rotation.md

@@ -0,0 +1,33 @@
+# GetLocalRotation
+
+Get the rotation of this transform relative to the parent transform.
+
+## Syntax
+
+```cpp
+const Math::Quaternion& GetLocalRotation() const;
+```
+
+## Returns
+
+Returns the local rotation as a `Math::Quaternion` reference.
+
+## Remarks
+
+Local rotation represents the rotation of this transform in parent space. If this transform has no parent, local rotation is the same as world rotation.
+
+## See Also
+
+- [SetLocalRotation](set-local-rotation)
+- [GetRotation](get-rotation)
+- [SetRotation](set-rotation)
+
+## Examples
+
+```cpp
+void Example(TransformComponent* transform) {
+    const Math::Quaternion& localRot = transform->GetLocalRotation();
+    XC_LOG_INFO("Local rotation: ({}, {}, {}, {})", 
+        localRot.x, localRot.y, localRot.z, localRot.w);
+}
+```