fix(0.1.22): 姓氏选择假功能修复——文档化传递链贯通

根因：GameEngine 构造硬编码 surname:'林'/familyName:'林氏'，
NewGame 输入的姓氏从未传入引擎（startNewGame 只传 seed）

修复：GameEngineOptions 增加 surname/familyName/motto/difficulty 透传；
store.startNewGame 全参传递；createWorldState 按 opts 建档（缺省林氏兜底）
验证：慕容家/慕容临渊 贯通（tsx 实证）+ 新增 2 例防回归测试

测试：1020 全绿（43+1 套件）；build 通过

src/renderer/ui/store.ts

@@ -149,7 +149,7 @@ export const useGameStore = create<GameStore>((set, get) => ({
 
   startNewGame: async (opts, slot) => {
     stopTimer()
-    const engine = new GameEngine({ seed: opts.seed })
+    const engine = new GameEngine({ seed: opts.seed, surname: opts.surname, familyName: opts.familyName, motto: opts.motto, difficulty: opts.difficulty })
     const world = engine.world
     set({ world, engine, slot, screen: 'game', panel: 'family', logFeed: [], battleView: undefined, pendingEventId: undefined, pendingEventDef: undefined, revision: 1, speed: 0, gameOverReason: undefined, paperReport: undefined, toast: undefined, selectedMemberId: undefined, selectedMissionDef: undefined })
     const st = get()