refactor(0.1.14-P1): 内核归位——game/ 按引擎架构重排（零行为漂移）

结构（旧 game/core+engine → 新 engine/ 域）：
- engine/kernel/  时钟/随机/插件协议/fxqueue/timesense/format/urgency/guide/names（原 core）
- engine/narrative/  legacy/报告/列传/谱系/年轴（原 core 叙事族）
- engine/runtime/   World/creation/pcgen/ApiFacade/capabilities/pluginManager/boot/clocks + Systems/*（12 系统）
- engine/sim/     Market（未来 WorldSim 同行）
- 旧 game/core、engine/systems、engine/world.ts 等路径全部废弃（无 re-export 兼容层）

验证：35 套件/967 测试全绿（金钟罩三档零漂移=纯搬迁无行为变化）
typecheck 0 error

src/renderer/game/engine/kernel/fxqueue.ts

@@ -0,0 +1,72 @@
+export type FxKind = 'spark' | 'mist' | 'ripple' | 'blade' | 'pulse' | 'seasonShift' | 'drift'
+
+export type FxMode = 'soft' | 'std' | 'full'
+
+export interface FxEmit {
+  kind: FxKind
+  payload?: Record<string, number | string>
+  at: number
+}
+
+export interface FxBus {
+  emit(e: FxEmit): void
+}
+
+/** 竞态安全发射闸：单循环、队列不覆盖、档位过滤、reduced-motion 降级 */
+export class FxGate {
+  private queue: FxEmit[] = []
+  private draining = false
+  mode: FxMode = 'std'
+  preferReduced = false
+
+  constructor(private bus: FxBus) {}
+
+  setMode(m: FxMode): void {
+    this.mode = m
+  }
+
+  setReduced(r: boolean): void {
+    this.preferReduced = r
+  }
+
+  allowed(kind: FxKind): boolean {
+    if (this.mode === 'soft') return kind === 'ripple' || kind === 'pulse' || kind === 'drift'
+    if (this.mode === 'full') return true
+    return kind !== 'blade' // std：火花/雾/涟漪/脉动，刀光仅 full
+  }
+
+  emit(kind: FxKind, payload?: FxEmit['payload']): void {
+    if (!this.allowed(kind) || this.preferReduced || this.draining) return
+    this.queue.push({ kind, payload, at: Date.now() })
+    this.drain()
+  }
+
+  private drain(): void {
+    if (this.draining) return
+    this.draining = true
+    // 单帧集中派发（不逐个 setTimeout，防止栈深+竞态覆盖）
+    const batch = this.queue
+    this.queue = []
+    try {
+      for (const e of batch) this.bus.emit(e)
+    } finally {
+      this.draining = false
+    }
+  }
+
+  pending(): number {
+    return this.queue.length + (this.draining ? 1 : 0)
+  }
+
+  /** 纯逻辑：资源差量（防负值与 NaN，供漂字用） */
+  static deltas(prev: Record<string, number>, next: Record<string, number>): Record<string, number> {
+    const out: Record<string, number> = {}
+    const keys = new Set([...Object.keys(prev), ...Object.keys(next)])
+    for (const k of keys) {
+      const a = prev[k] ?? 0
+      const b = next[k] ?? 0
+      if (Number.isFinite(a) && Number.isFinite(b) && b !== a) out[k] = b - a
+    }
+    return out
+  }
+}