feedback5 WAA: a bounty enemy that dies with no operator behind it — 无来源 damage, its own HP loss, another enemy — pays in 联防 too: the helper whose half it fell on (community report of 2026-10-06 「被源石地板烫死的悬赏没给赏金」)

- Reproduced (scratchpad scripts): on its own field a bounty enemy the 活性源石 alone burns to death pays its
  owner — on this tree and on v0.1.4 (all 96 walking kill-bounty enemies, 战场#04, no operator: 0 unpaid). The
  loss is in 联防: a leaked bounty enemy re-enters with `bounty.ownerPlayerId` = the leaker (unite.js
  planUnite), who has no per-player entry in that battle. A death without an operator killer fell back to that
  owner, and Battle.addCoins dropped the coins. Until 0.1.3 the 联防 field was the round's map, so 战场#04's
  活性源石 burned leaked bounty enemies for nothing — the report; since then the 联防 maps have no terrain, but a
  无来源 tick, the enemy's own drain or another enemy's hit still paid nobody.
- Official: PRTS 卫戍协议：盟约 决策 "该敌人于对应玩家所属区域倒下时，使相应玩家获得额外资金"; the bounty pays whenever the
  body dies (the owner's decision, relayed 2026-10-06; 0.1.1 "paid once, at the final death"). No PRTS exception
  for 环境伤害.
- Now: Battle._bountyPayee (battle/economy.js): an operator or summon of a player in the battle that dealt the
  blow pays its player (as before, 联防 helpers included); any other death pays the card's owner when that player
  fights there (own field, Final Assault / Hidden Core — unchanged), else the player whose half of the field the
  enemy fell on (Battle._ownerForTile) [ASSUMED for 联防: no source names the payee of a death nobody caused there].
- Docs: SIM.md §1.2, META.md SETTLE, PLAYING.md (联防 rules), unite.js header.
- Tests: test/sim/feedback5-bounty-payee.test.js — the 联防 case (one helper; two helpers by half; killed by
  nobody, 无来源 terrain damage, another enemy, its own HP loss) fails on the parent; pinned: the own-field
  活性源石 death, a helper's operator on the other half, a pair boss field. Golden unchanged.

docs/PLAYING.md

@@ -92,7 +92,7 @@
 - 联防在官方的**联防专用地图**上进行（与官方相同，不是本回合的战场）：一整片道路，没有水池、箱子、装置等地形；干员按休整期的位置站好。一人协防时敌人从中间的入口进入左半场；两人协防时敌人从最右侧进入，先经过右半场，再穿过中间进入左半场。
 
 - 只有完美作战的队友能参与联防；联防中**盟约不会叠加层数**。
-- 联防中击杀悬赏敌人，资金归击杀者。
+- 联防中击杀悬赏敌人，资金归击杀者；没有干员击倒它时（无来源伤害、它自己扣血、其他敌人的伤害等），资金归它倒下处所在半场的队友。悬赏敌人在自己的战场上被地形（如活性源石）烫死，资金照样归你。
 - 联防后仍然存活的敌人，按原主人扣 LP；没人完美作战时直接扣。
 - 漏怪的玩家在顶栏中间（击倒数旁）看到橙色的「×N」标签：你漏过、仍在联防战场上的敌人数（含还没出场的，**不设上限**），队友每击倒一个就减一（会分裂或召唤的敌人被击倒时，分裂出的敌人也算你的，数字会相应增加）；目标生命值同时显示为扣除 min(N, 10) 后的数值。左侧队伍栏里漏怪队友的行也显示 ×N（与战场上的击倒同步更新；鼠标悬停可看到是谁漏过的敌人）。
 - **有敌人走进蓝门就会响一声**：不等它真的扣到目标生命值——一回合里超过 10 点上限的那部分、数据里标明不计数目的敌人（BOSS 部件之类），以及联防里漏过去、随后被队友清掉的那几只，目标生命值都不会再扣，但这一声照样会响。播的是**原版关卡里怪进蓝门那一声**（官方音效表里的 `ON_ENEMY_REACHED_EXIT`，任何一关都是它）。你正在看哪个战场就听哪个战场的，所以看队友的战场、以及漏怪后观看联防时同样听得到。这一声 1.44 秒，我们按官方的「同时只允许一个」做成 **1.5 秒内共用一声**：一波打穿防线只响一遍（不会叠成一片），过一会儿再漏会再响。