Fix radar camera back to Overlay type

The renderer wiring had flipped it to Base; as a Base camera with
Don't Clear it rendered fullscreen into an uninitialized target
(RenderGraph debug yellow). Overlay restores stack compositing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Assets/Scenes/Main.unity

@@ -5232,7 +5232,7 @@ MonoBehaviour:
   m_RenderShadows: 1
   m_RequiresDepthTextureOption: 2
   m_RequiresOpaqueTextureOption: 2
-  m_CameraType: 0
+  m_CameraType: 1
   m_Cameras: []
   m_RendererIndex: 1
   m_VolumeLayerMask: