[rdlabo]

Overlapping native controls could be painted in a different order in the Web handoff image because source views were selected from a dictionary. Repeated captures could change that order without any change to the native UI.

Select requested views in the host's native drawing order, retaining the existing fallback for sources outside that host. The regression test compares decoded pixels across repeated handoffs and after changing the native stacking order.

The existing pre-interaction image handoff and capture timing are preserved. This fix uses the published Engine 1.0.4 and has no dependency on Engine #47.

Validation

• Four focused iOS hosted tests passed against Engine 1.0.4: source ordering, popover ownership and covered-control restoration.
• All 57 Web image-handoff tests passed on this branch with its locked dependencies.
• With the unchanged main controller, the regression test failed five pixel assertions.