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/set-local-euler-angles.md

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+# SetLocalEulerAngles
+
+Set the local rotation using Euler angles in degrees.
+
+## Syntax
+
+```cpp
+void SetLocalEulerAngles(const Math::Vector3& eulers);
+```
+
+## Parameters
+
+- `eulers` - The Euler angles `(x, y, z)` in degrees.
+
+## Remarks
+
+Sets the local rotation by converting the Euler angles to a quaternion. The angles represent rotation around the X, Y, and Z axes respectively.
+
+## See Also
+
+- [GetLocalEulerAngles](get-local-euler-angles)
+- [SetLocalRotation](set-local-rotation)
+
+## Examples
+
+```cpp
+void Example(TransformComponent* transform) {
+    transform->SetLocalEulerAngles(Math::Vector3(45.0f, 90.0f, 0.0f));
+}
+```