feat(simulation): generation pipeline Rust types + SystemNameIndex (#900, #912-#926)

WorldTier enum fixed to Epicenter/Regional/Backwater/Passage/Waypoint
(D-218). Full enum implementations for ComplexityTier, SettingType,
SettlementClass, DistrictType, PoliticalArchetype, FoundingOrientation,
TerritorialStatus, GeographicAttractor, AttractorType, and
CompatibilityMatrix. SystemNameIndex with Aho-Corasick text scanning
for background pre-generation queue integration (D-206).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/Cargo.toml

@@ -28,7 +28,9 @@ crossbeam-channel = "0.5"
 sysinfo = "0.35"
 serde_json = "1"
 rusqlite = { version = "0.32", features = ["bundled"] }
+bytemuck = "1"
 toml = "0.8"
+aho-corasick = "1"
 # Economics simulation — Leontief + tâtonnement + D-180 event port (#821)
 econ-sim = { path = "../tooling/econ-sim" }