BP_Block_Hull, BP_Block_Thruster, BP_Block_Power, BP_Block_Storage:
simple Actors with a mesh and a single contribution variable each
(HullBonus/ThrustBonus/PowerBonus/StorageBonus). Distinct shapes/
scales for visual identification.
Array variables and the ForEachLoop macro don't reliably work
through this MCP plugin's Blueprint graph builder (confirmed via a
throwaway test: the macro's wildcard Array pin never resolves its
type, compile fails every time) -- so aggregation will use one typed
slot per block type on the ship rather than a generic block list.