Materialize now settles what the catalog alone decides, tries the cells on a
throwaway ItemManager (own ledger and stream, designs built unbranded), and only
then asks the chooser and mints lots. ZoneGenerator's copy-and-restore of
itemManager.Random is deleted, and the boss faction's LoadoutGenerator is created
on the first choice instead of as an argument. Resolve keeps its signature and is
Settle then Build.
Tests: an unbuildable boss zone equals the no-boss zone (serialized pack, ledger,
roster and gear, next item draw) for one failure, several failures and design-only
slots, across every faction as boss faction.
Not yet built or run when committed.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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