chore(db): replace Commonwealth with Settled Reach in tooling and server

Updated docstrings in sqlite_connector, qdrant_connector,
decisions_sync, schema.sql, and two doc comments in generator.rs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/simulation/generator.rs

@@ -72,7 +72,7 @@ pub type EconomicModifier = String;
 pub type FactionModifier = String;
 /// Condition modifier on a zone palette (worn, pristine, damaged). Stub.
 pub type ConditionModifier = String;
-/// Heritage root modifier (Commonwealth cultural grammar layer). Stub.
+/// Heritage root modifier (Settled Reach cultural grammar layer). Stub.
 pub type HeritageRoot = String;
 /// Season modifier (affects palette and ambient conditions). Stub.
 pub type Season = String;
@@ -107,7 +107,7 @@ pub type PlacedObject = String;
 pub enum WorldTier {
     /// Background system — minimal simulation, sparse NPCs. Pure environmental.
     Peripheral,
-    /// Standard Commonwealth system — full simulation, complex social sites.
+    /// Standard Settled Reach system — full simulation, complex social sites.
     Connected,
     /// Major hub — maximum fidelity, multi-faction politics, all triangle types.
     Core,