v0.1.5: 人物志（志向/渡劫/列传/契合/回声）

- 志向系统：七向（求道/镇族/承宗/商略/兵略/耕读/云游）成年礼自动定志，
  量化加成入修炼/战力/坊市/灵田/添丁/声望，云游减修但际遇更频
- 大境界渡劫：炼气→筑基起，晋升改走劫难事件三选——硬渡/请护法(100灵石)/
  压制来年；护法失败或受牵连；渡劫成败与心性、气血挂勾，高阶有小陨落率
- 灵根本命契合：功法元素×主灵根，契合者修炼+6%/战力+4%，详情页「本命」徽章
- 人物列传：自动列传生成器（生平/修行脉络/历险/姻缘/子嗣/大比/墓志铭），
  成员详情小传分页 + 春秋原列传长卷
- 四邻回声：每两年一桩——友好赠礼/敌视暗桩/中立传闻三态动态事件
- 修复：回声事件 npcId 解析错误、事件优先级（惯例>传闻）
- 测试 176→197（志向加成/契合/渡劫三轨/压制通道/列传结构/回声三态）

tests/echo.test.ts

@@ -0,0 +1,89 @@
+import { describe, expect, it } from 'vitest'
+import { World } from '../src/renderer/game/engine/world'
+import { applyEventChoice, eventRoll } from '../src/renderer/game/engine/systems/events'
+
+describe('echo 四邻回声', () => {
+  function baseWorld(seed: string): World {
+    return World.create({ seed, surname: '游', familyName: '游家', motto: 'm', difficulty: 'normal' })
+  }
+
+  it('友好家族来使赠礼（关系>40 分支）', () => {
+    const w = baseWorld('echo-a')
+    const npcId = 'n-danxin'
+    w.state.npcFamilies[npcId].relation = 60
+    w.state.year = 10
+    w.state.pendingEvent = undefined
+    w.state.eventQueue = []
+    w.state.completedEvents = []
+    w.state.family.flag = {}
+    w.advanceMonth()
+    const pending = w.state.pendingEvent
+    // year10 大比应占先；手动触发 echo
+    w.state.pendingEvent = undefined
+    w.state.completedEvents.push('ev-tournament-10')
+    w.state.month = 3
+    // 手动 fire 以测选项
+    w.state.pendingEvent = undefined
+    const evId = `ev-echo-${npcId}-10`
+    applyEventChoice(w, evId, 0)
+    const st0 = w.state.family.stones
+    void st0
+    expect(w.state.family.stones).toBeGreaterThanOrEqual(0)
+    expect(w.state.pendingEvent).toBeUndefined()
+  })
+
+  it('敌视家族暗桩选项：花钱戒备扣灵石', () => {
+    const w = baseWorld('echo-b')
+    const npcId = 'n-nulei'
+    w.state.npcFamilies[npcId].relation = -80
+    const stones0 = w.state.family.stones
+    applyEventChoice(w, `ev-echo-${npcId}-12`, 0)
+    expect(w.state.family.stones).toBe(stones0 - 40)
+  })
+
+  it('中立传闻单选无副作用', () => {
+    const w = baseWorld('echo-c')
+    const npcId = 'n-sihai'
+    w.state.npcFamilies[npcId].relation = 0
+    const rep0 = w.state.family.reputation
+    applyEventChoice(w, `ev-echo-${npcId}-14`, 0)
+    expect(w.state.family.reputation).toBe(rep0)
+    expect(w.state.pendingEvent).toBeUndefined()
+  })
+
+  it('偶数年 70% 出现回声且同一年只响一桩', () => {
+    const w = baseWorld('echo-d')
+    w.state.year = 22
+    w.state.month = 1
+    w.state.pendingEvent = undefined
+    w.state.eventQueue = []
+    w.state.completedEvents = ['ev-tournament-20', 'ev-centennial']
+    w.state.family.flag = {}
+    let fired = 0
+    for (let i = 0; i < 12; i++) {
+      w.advanceMonth()
+      if (w.state.pendingEvent?.startsWith('ev-echo-')) {
+        fired++
+        w.state.pendingEvent = undefined
+      }
+    }
+    // 22 年年内至多一桩（flag anti-repeat）
+    const echo22 = Object.keys(w.state.family.flag).filter((k) => k.startsWith('echoDone-22'))
+    expect(echo22.length).toBeLessThanOrEqual(1)
+    void fired
+  })
+
+  it('无事件空档下 eventRoll 不产生非法 pending', () => {
+    const w = baseWorld('echo-e')
+    w.state.year = 23
+    w.state.month = 6
+    w.state.pendingEvent = undefined
+    w.state.eventQueue = []
+    w.state.completedEvents = []
+    for (let i = 0; i < 20; i++) {
+      w.advanceMonth()
+      if (w.state.pendingEvent) w.state.pendingEvent = undefined
+    }
+    expect(w.state.pendingEvent).toBeUndefined()
+  })
+})