feat(0.1.14-P4/P5): UI 单点 + 引擎级测试（979）+ 顶栏天下风云

- GameScreen 顶栏「天下风云」胶囊：潮汐印（灵涨/汐平/灵衰）+ 物价标签（物腾/平稳/物贱）
  + title 显示最近快讯（worldsim-brief 纯函数）
- store 接 GameEngine 起点（startNewGame 走引擎；facade/engine 单源）
- 新测试 gameengine.test.ts ×12：引擎门面（构造/advance单源/act+query+subscribe/datapack覆写+restore/about）
  Kernel 三合一 / WorldSim 世界健康（3 seed × 1000 月：池/灵气在界、换代>0、快讯≤120）/ sim 联动
- 全量 36 套件 / 979 测试通过；金钟罩三档固化（0.1.14 正式）；typecheck 0 error
- AGENTS 补「引擎系统」章节；版本 0.1.14

src/renderer/game/engine/sim/worldsim-brief.ts

@@ -0,0 +1,13 @@
+import { World } from '../runtime/World'
+
+export function worldSimBrief(w: World): { tideLabel: string; priceLabel: string; latest: string } | null {
+  const ws = w.state.worldSim
+  if (!ws) return null
+  const tide = ws.tide ?? 0.5
+  const tideLabel = tide > 0.9 ? '灵涨' : tide < 0.7 ? '灵衰' : '汐平'
+  const pool = ws.marketPool ?? {}
+  const ratio = (pool['lingcao'] ?? 600) / 600
+  const priceLabel = ratio > 1.15 ? '物腾' : ratio < 0.85 ? '物贱' : '平稳'
+  const latest = ws.newsFeed?.[ws.newsFeed.length - 1]?.text ?? ''
+  return { tideLabel, priceLabel, latest }
+}

src/renderer/ui/screens/GameScreen.tsx

@@ -16,6 +16,7 @@ import { fmt as fmtNum } from '../../game/engine/kernel/format'
 import { seasonOf } from '../../game/data/season'
 import { seasonTint, yearRing, tideOf } from '../../game/engine/kernel/timesense'
 import landscapeUrl from '../../assets/gen/landscape-gold.svg'
+import { worldSimBrief } from '../../game/engine/sim/worldsim-brief'
 import { GuideStrip } from '../components/GuideStrip'
 
 const TABS: { id: PanelId; label: string }[] = [
@@ -87,6 +88,7 @@ export default function GameScreen() {
             </div>
           ))}
         </div>
+        <WorldCondensed />
         <button className="btn btn-sm" title="手动存点" onClick={() => void saveNow()}>存</button>
       </div>
       <UrgentBadges />
@@ -139,6 +141,21 @@ export default function GameScreen() {
   )
 }
 
+function WorldCondensed() {
+  const revision = useGameStore((s) => s.revision)
+  void revision
+  const st = useGameStore.getState()
+  if (!st.world) return null
+  const brief = worldSimBrief(st.world)
+  if (!brief) return null
+  return (
+    <button className="world-badge" title={`潮汐${brief.tideLabel} · 物价${brief.priceLabel} · 快讯：${brief.latest ?? ''}`}>
+      <span className="seal">{brief.tideLabel}</span>
+      <span className="wb-price">{brief.priceLabel}</span>
+    </button>
+  )
+}
+
 function dispRes(id: string): number {
   const st = useGameStore.getState()
   const w = st.world

src/renderer/ui/store.ts

@@ -1,5 +1,6 @@
 import { create } from 'zustand'
 import { World, WorldEventBus } from '../game/engine/runtime/World'
+import { GameEngine } from '../game/engine/GameEngine'
 import { EventDef } from '../game/data/events'
 import { findEvent, applyEventChoice } from '../game/engine/runtime/Systems/events'
 import { BattleLog, ChronicleEntry, GameState, LogItem, SaveMeta, YearlyReport, SnapshotMeta } from '../game/types/domain'
@@ -61,6 +62,7 @@ export interface GameStore {
   closePaper: () => void
   toggleSound: () => void
   facade?: GameFacade
+  engine?: GameEngine
   advancing: boolean
   setNextToast: (msg: string) => void
   act: (name: ActName, payload: import('../game/engine/runtime/ApiFacade').ActPayload) => boolean
@@ -88,6 +90,7 @@ function stopTimer(): void {
 
 export const useGameStore = create<GameStore>((set, get) => ({
   facade: undefined as GameFacade | undefined,
+  engine: undefined as GameEngine | undefined,
   advancing: false,
   setNextToast: (msg: string) => setNextToast(msg),
   screen: 'boot',
@@ -144,11 +147,12 @@ export const useGameStore = create<GameStore>((set, get) => ({
   go: (screen) => set({ screen }),
 
   startNewGame: async (opts, slot) => {
-    const world = World.create(opts)
-    set({ world, 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 engine = new GameEngine({ seed: opts.seed })
+    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()
     st.world?.out.push(makeBus(st))
-    const facade = new GameFacade(world, slot)
+    const facade = st.facade ?? new GameFacade(world, slot)
     set({ facade })
     await st.saveNow('开局')
   },

src/renderer/ui/styles.css

@@ -1799,3 +1799,25 @@ html[data-blade] .battle-lines {
   max-height: 120px;
   overflow-y: auto;
 }
+
+/* ---------- 天下风云徽章 ---------- */
+.world-badge {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  background: rgba(38, 29, 16, 0.65);
+  border: 1px solid #3a3021;
+  border-radius: 3px;
+  padding: 3px 10px;
+  cursor: pointer;
+  font-family: inherit;
+  color: #cbbd9e;
+  transition: all 0.15s;
+}
+.world-badge:hover {
+  border-color: var(--gold);
+}
+.world-badge .wb-price {
+  font-size: 0.8rem;
+  color: #a8c2da;
+}