fix(scene): fire EVENT_PRECULL after frustum update

[mvaligursky]

Reorder cullComposition so EVENT_PRECULL is dispatched after camera.frameUpdate and updateCameraFrustum have run. Listeners now receive a camera whose frustum reflects the current frame's state, which makes the event usable for custom culling, LOD selection, and other logic that depends on up-to-date frustum planes.

This also aligns behavior with the shadow renderer's EVENT_PRECULL site, which already fires after its frustum is updated.

Fixes #8789.

Changes:

• EVENT_PRECULL now fires after the camera frustum has been recomputed for the frame.

Behavior change:

• Listeners that previously relied on EVENT_PRECULL firing before the frustum update (e.g., to mutate the camera transform and have that change picked up by this frame's frustum) must now call Renderer#updateCameraFrustum themselves, or move that logic earlier.