Various minor fixes to successor system and mixing

src/playerprogress.ts

@@ -4,6 +4,7 @@ import { getThralls, ItemStage, LifeStage, Thrall } from "./thralls.ts";
 
 export class PlayerProgress {
   #name: string;
+  #thrallTemplate: number;
   #stats: Record<Stat, number>;
   #talents: Record<Stat, number>;
   #isInPenance: boolean;
@@ -20,6 +21,7 @@ export class PlayerProgress {
 
   constructor(asSuccessor: SuccessorOption, withWish: Wish | null) {
     this.#name = asSuccessor.name;
+    this.#thrallTemplate = asSuccessor.template.id;
     this.#stats = { ...asSuccessor.stats };
     this.#talents = { ...asSuccessor.talents };
     this.#isInPenance = asSuccessor.inPenance;
@@ -47,6 +49,10 @@ export class PlayerProgress {
     return this.#name;
   }
 
+  get template(): Thrall {
+    return { id: this.#thrallTemplate };
+  }
+
   get isInPenance(): boolean {
     return this.#isInPenance;
   }