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/runtime/Systems/diplomacy.ts

@@ -0,0 +1,104 @@
+import type { World } from '../World'
+import { npcById } from '../../../data/npcs'
+import { findEvent, fire } from './events'
+
+export function diplomacyTick(w: World): void {
+  const s = w.state
+  const drift = w.rng.chance(0.15)
+  for (const npc of Object.values(s.npcFamilies)) {
+    if (drift) {
+      if (npc.relation > 0) npc.relation -= 1
+      else if (npc.relation < 0) npc.relation += 1
+    }
+    if (npc.relation < -50) {
+      const last = (w.state.family.flag[`raidCD-${npc.id}`] as number | undefined) ?? 0
+      if (s.year - last >= 2 && w.rng.chance(0.03)) {
+        fire(w, `ev-raid-${npc.id}`)
+      }
+    }
+  }
+}
+
+export function yearGrowth(w: World): void {
+  const s = w.state
+  for (const npc of Object.values(s.npcFamilies)) {
+    const def = npcById(npc.id)
+    const [a, b] = def.powerGrowth
+    npc.power += w.rng.int(a, b)
+  }
+}
+
+export function npcRelation(w: World, npcId: string): number {
+  return w.state.npcFamilies[npcId]?.relation ?? 0
+}
+
+export function calcGiftGain(stones: number): number {
+  return Math.max(1, Math.round(stones / 12))
+}
+
+export const GIFT_TIERS = [40, 120, 300] as const
+
+export function giftNpc(w: World, npcId: string, stones: number): boolean {
+  const fam = w.state.family
+  if (stones <= 0 || fam.stones < stones) return false
+  fam.stones -= stones
+  const npc = w.state.npcFamilies[npcId]
+  const gain = calcGiftGain(stones)
+  npc.relation = Math.min(100, npc.relation + gain)
+  w.log('info', `厚礼送往${npc.name}，两家关系 +${gain}。`)
+  return true
+}
+
+export function makePeace(w: World, npcId: string): boolean {
+  const fam = w.state.family
+  const npc = w.state.npcFamilies[npcId]
+  if (fam.stones < 200) return false
+  fam.stones -= 200
+  npc.relation = Math.max(npc.relation + 35, 30)
+  w.chronicle('diplomacy', `${npc.name}立下和约，两家罢兵互市。`, undefined, true)
+  w.log('good', `与${npc.name}言和。`)
+  return true
+}
+
+export function marryNpcFamily(w: World, npcId: string): boolean {
+  const s = w.state
+  const fam = s.family
+  const npc = s.npcFamilies[npcId]
+  if (!npc || npc.relation < 25 || npc.allied) return false
+  const eligible = w
+    .aliveMembers()
+    .filter((c) => w.ageOf(c) >= 16 && w.ageOf(c) <= 46 && c.state !== 'expedition')
+    .filter((c) => !c.spouseId || w.isWidowed(c))
+  if (eligible.length === 0) return false
+  const npcDef = npcById(npcId)
+  const candidate = w.rng.pick(eligible)
+  candidate.spouseHouse = npc.name
+  npc.relation += 20
+  npc.allied = true
+  npc.alliedSinceYear = s.year
+  fam.reputation += 4
+  w.chronicle('marriage', `${candidate.name}与${npc.name}联姻，两家绸缪通好。`, candidate.id, true)
+  w.log('good', `${candidate.name} 与${npc.name}联姻成功！每年或降麟儿。`)
+  return true
+}
+
+export function arrangeWedding(w: World, aId: string, bId: string): boolean {
+  const a = w.memberById(aId)
+  const b = w.memberById(bId)
+  if (!a.alive || !b.alive) return false
+  if (a.spouseId && !w.isWidowed(a)) return false
+  if (b.spouseId && !w.isWidowed(b)) return false
+  if (a.gender === b.gender) return false
+  if (a.fatherId === b.fatherId && a.fatherId) return false
+  if (a.motherId === b.motherId && a.motherId) return false
+  a.spouseId = b.id
+  b.spouseId = a.id
+  const aAge = w.ageOf(a)
+  const bAge = w.ageOf(b)
+  if (w.state.family.flag['tenants']) {
+    w.state.family.reputation += 1
+  }
+  w.chronicle('marriage', `${a.name}（${aAge}）与${b.name}（${bAge}）拜堂成亲。`, a.id, true)
+  w.log('good', `${a.name} 与 ${b.name} 结为连理。`)
+  return true
+}