v0.1.9: 百年报告 & 发布之窗（报告/迁移/阵型/冬祷/哨兵）

- 百年族史报告：buildReport 纯函数（人口/声望/战力三线、死因榜、突破密度、
  大比战绩、代际长度带）+ 春秋原 SVG 折线视图 + 自动措辞结语
- 存档迁移管线 v2：migrate 链（v1→v2）+ 未来版本拒载（TOO_NEW）+ 导出信封
  带 appId/schemaVersion + 导入全链路迁移校验；saveState 自动写 CURRENT_SCHEMA
- 战斗阵型：锋阵(+10%攻)/雁阵(御5%+溃伤-15%)/蛇阵(溃伤-30%)，三处出战接入
  （遣队/大比/劫掠）点将面板下拉 + 战报首行标阵
- 冬至岁祷：每年十一月三选（观星+3声望/祈福全族修为/问卜吉凶）
- 发布准备：scripts/verify-release.mjs 验收哨兵（npm run verify/verify:package）
  + README 全面重写（架构/守护/版本沿革）；版本号三处归一
- 测试 861→881（报告四例/迁移五链/阵型六则含胜率统计/冬祷四则）；
  金钟罩三指纹零漂移；typecheck/build 通过

src/renderer/ui/panels/ExpeditionPanel.tsx

@@ -4,6 +4,7 @@ import { sendMission, recallAll } from '../../game/engine/systems/missions'
 import { combatPowerOf } from '../../game/engine/systems/combat'
 import { useState } from 'react'
 import { describeRealm, MAJOR_ORDER } from '../../game/data/realms'
+import { FORMATIONS, FormationId } from '../../game/data/formations'
 
 export default function ExpeditionPanel() {
   const world = useGameStore((s) => s.world)
@@ -13,6 +14,7 @@ export default function ExpeditionPanel() {
   const revision = useGameStore((s) => s.revision)
   void revision
   const [squad, setSquad] = useState<string[]>([])
+  const [formation, setFormation] = useState<FormationId>('vanguard')
   if (!world) return null
   const w = world
   const s = w.state
@@ -78,11 +80,24 @@ export default function ExpeditionPanel() {
               ))}
               {candidates.length === 0 && <span className="dim2">无可派遣之人</span>}
             </div>
+            <div className="formation-pick" style={{ marginBottom: 8 }}>
+              {(Object.keys(FORMATIONS) as FormationId[]).map((fid) => (
+                <div
+                  key={fid}
+                  className={`tag ${formation === fid ? 'gold-t' : ''}`}
+                  style={{ cursor: 'pointer', padding: '3px 10px' }}
+                  onClick={() => setFormation(fid)}
+                  title={FORMATIONS[fid].desc}
+                >
+                  {FORMATIONS[fid].name}
+                </div>
+              ))}
+            </div>
             <button
               className="btn btn-primary"
               disabled={squad.length < def.minMembers || squad.length > def.maxMembers || active.length >= 3}
               onClick={() => {
-                sendMission(w, def.id, squad)
+                sendMission(w, def.id, squad, formation)
                 setSquad([])
                 bump()
               }}