Tiered resource system

The old material system — twelve confusingly named substances like "spore sac" and "etching compound" — has been replaced with something you can actually understand at a glance. Three resource types, eight named tiers each.

Alloys run from Tin through Copper, Iron, Steel, Titanium, Carbon Fiber, Xenosteel, and Neutronium. Biostock goes Moss, Fiber, Root, Sap, Nectar, Enzyme, Marrow, Ichor. Signal Data spans Static to Architect Signal. When a recipe says "Iron x5", you know exactly what that means and where to get it.

Every zone now has gathering nodes matched to its tier. Sporeveld has Tier 1 nodes, Crucible has Tier 4, Genesis Laboratory has Tier 8. Higher-tier zones also have nodes one tier above and below, so there's always a reason to explore.

Existing materials have been automatically converted. If you had alien alloy, it's now Iron. Crystal shards became Titanium. Nothing was lost.