Update Healer Man server

src/game/dungeonTypes.ts

@@ -258,6 +258,8 @@ export interface DungeonDefinition {
   readonly roamingPacks: readonly MobPackDefinition[];
   readonly bosses: readonly DungeonBossObjective[];
   readonly objectiveOrder: readonly DungeonBossObjective[];
+  /** Defaults to finale; short-form dungeons can keep their last objective at standard boss durability. */
+  readonly finalBossDurability?: "standard" | "finale";
   readonly navigationLinks: readonly DungeonNavigationLink[];
   readonly traversalRamps?: readonly DungeonTraversalRamp[];
   /** Serializable dungeon-wide orchestration kept separate from render state. */