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/SIM.md

@@ -180,6 +180,11 @@ and research routes (`{m, s, e, cp:[['MOVE',r,c]…]}`). `spawnsFromTemplate(wav
 template into `{ routes, spawns, maxPlayTime, overrides, extraRoutes }` (non-spawn `action` entries are skipped; `unharmful`
 and `tag:'part'` spawns don't count in `total`).
 
+A `bounty` pays `coins` once, when the enemy really dies (not a knock-out it survives; a leak pays nothing), to
+`Battle._bountyPayee`: the player of the operator or summon that dealt the blow, if that player is in the battle; any
+other death (无来源 damage such as 活性源石, its own HP loss, another enemy, an ownerless unit) pays `ownerPlayerId` when
+that player is in the battle, else — 联防, where it is the leaker — the helper whose half the enemy fell on (0.2.0).
+
 Leader parts (`tag:'part'`) pass damage to their leader with `loseHp(leader, share, { source, from, sourceless: true })`
 (无来源, credited to the attacker's `bossDamage`): `PART_TRANSFER` 1 for 斩胄之剑 / 破胄之锤 (`BLADE_TRANSFER`, the same
 constant) and 碎铳之簧 (PRTS "受到伤害时令假想敌：胄/铳受到等量的无来源生命流失"; DESIGN §20.10, §20.13). Content may replace a part mid-battle: every 剑/锤 sortie (content/bosses.js `kitBlade`)