ResourceType
A data-driven resource type (§M5P-2.1 / §FEA-S12). Content authors as many as it wants; the ordered registry index is the identity used by cost/amount vectors and per-player wallets. `id` is the sim identity (folded into simHash at session-init, §SEAM-3.3); a display name/colour is appearance and lives render-side, never here. `startAmount` seeds every player's wallet of this type at match start — data-driven, not a fixed `startResources` constant.
In the namespace octomy::rts. Declared in src/libs/librts/rts/sim/RtsTypes.hpp.