Update class mechanics, stat rulesets, and CoA reference catalogs

src/game/combatActors.ts

@@ -1,5 +1,6 @@
 import type { ClassId } from "../app/characterCatalog";
 import type { DamageSchool } from "./combatAuras";
+import type { CharacterStatRuleset } from "./characterStatRuleset";
 
 export type CombatActorKind = "player" | "companion" | "enemy" | "pet" | "totem" | "summon";
 export type CombatResourceId = string;
@@ -59,6 +60,8 @@ export interface CombatActorState {
   readonly kind: CombatActorKind;
   readonly ownerId?: string;
   readonly classId?: ClassId;
+  /** The owning character's stat model, carried with authoritative snapshots. */
+  readonly statRuleset?: CharacterStatRuleset;
   readonly level: number;
   readonly health: number;
   readonly maxHealth: number;