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/game/engine/GameEngine.ts

@@ -13,6 +13,11 @@ export interface GameEngineOptions {
   seed?: string
   datapack?: Partial<DataPack>
   noAutoCreate?: boolean
+  /** 建档参数（NewGame 透传；缺省林氏兜底） */
+  surname?: string
+  familyName?: string
+  motto?: string
+  difficulty?: 'easy' | 'normal' | 'hard'
 }
 
 export type EngineStatus = 'idle' | 'running' | 'gameover'
@@ -39,10 +44,10 @@ export class GameEngine {
     // 组装World（内核注入→时钟/随机/总线单源）
     const state = opts.seed ? createWorldState({
       seed: this._seed,
-      surname: '林',
+      surname: opts.surname?.trim() || '林',
-      familyName: '林氏',
+      familyName: opts.familyName?.trim() || `${opts.surname?.trim() || '林'}氏`,
-      motto: '耕读传家，术法继世',
+      motto: opts.motto?.trim() || '耕读传家，术法继世',
-      difficulty: 'normal'
+      difficulty: opts.difficulty ?? 'normal'
     }) : (globalThis as never as { __state?: GameState }).__state
     this.world = new World(state!, [], this.kernel)
     this.facade = new ApiFacade(this.world, 1)

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()

tests/gameengine.test.ts

@@ -120,3 +120,18 @@ describe('Sim 与外层联动', () => {
     expect(before).toBeLessThan(1.4)
   })
 })
+
+describe('GameEngine 建档参数', () => {
+  it('姓氏透传：新档用玩家输入的姓氏/家号（0.1.22 修复）', () => {
+    const e = new GameEngine({ seed: 'name-fix', surname: '慕容', familyName: '慕容家', motto: '铁血丹心', difficulty: 'normal' })
+    expect(e.world.state.family.name).toBe('慕容家')
+    const head = Object.values(e.world.state.members).find((c) => c.isHead)
+    expect(head?.name.startsWith('慕容')).toBe(true)
+    expect(e.world.state.family.motto ?? '').toBeTruthy()
+  })
+
+  it('缺省建档仍为林氏（兜底不破）', () => {
+    const e = new GameEngine({ seed: 'name-default' })
+    expect(e.world.state.family.name).toBe('林氏')
+  })
+})