feedback6: merge R21D — with both slots full, every consumable (博士投影, 盟约之币 …) opens the replace dialog and destroys only the picked item once its effect succeeds (PRTS 卫戍协议/帮助 「达到上限强行佩戴会改为替换装备…并销毁被指定的装备」; GitHub #263, PR #264 by @SpiritedAwayCN, ported); golden as R21D's commit (10 matches: bots using a consumable on a full operator), the merged tree differs from the branch only in R21B's 联防 scenarios

docs/design/match.md

@@ -56,7 +56,7 @@ Intent handlers (validate → mutate → recompute bonds → push private view):
 
 Summons (§20.1): an operator on the board sends its manually deployable summons to the hand — deploy-limit copies in one stack, no deploy slot (tokens.json `placeable`, `gamedata.placeableTokens`); moving or swapping it sends its placed summons back to their stack, withdrawing or selling it removes them. A range-bound summon (tokens.json `ownerRange`: 狼群, 流形) goes only on a tile of its owner's attack range (`PlayerState._legal` / `summonRange`); in a swap each piece is checked from the tile it ends on; an in-place re-orientation or promotion that leaves it outside sends it back to its stack with a toast (one still inside stays [ASSUMED], user-confirmed 2026-10-03), and a re-orientation whose lifted summon would have no room is refused with `HAND_FULL`; on the other paths it leaves the board and returns at the next round start (§21.3).
 
-Equipment (research 04 §2 + addendum, 09 §1.2): 2 slots per chess; a third item on a full carrier replaces the equipped item `replaceUid` names (the replace dialog's pick, official `UseEquipUp.unloadInstId`; absent ⇒ the oldest; a uid not equipped on the target ⇒ `BAD_TARGET`, nothing changes) and the replaced item is destroyed. Equipped items are otherwise **locked**: `destroy` (销毁) accepts hand / temp items only (`BAD_TARGET 'equipped items are locked'`); equipment goes back to the hand only when its carrier merges, is sold, or is destroyed by 突变细胞's transformation (the cell itself returns too; PRTS 帮助 "在失去该干员（干员出售、销毁、合并等）…时自动卸除", §21.1) — a sale is refused with `HAND_FULL` when there is no room for it; returned equipment is stowed before the operator a transformation gains and before a merge elite's summon cards, and every path that hands the player an item — returned equipment included — ends with the auto-merge, so no player holds two identical mergeable normal items (§21.7).
+Equipment (research 04 §2 + addendum, 09 §1.2): 2 slots per chess; a third item on a full carrier replaces the equipped item `replaceUid` names (the replace dialog's pick, official `UseEquipUp.unloadInstId`; absent ⇒ the oldest; a uid not equipped on the target ⇒ `BAD_TARGET`, nothing changes) and the replaced item is destroyed. A consume-on-equip item (盟约之币, 博士投影 …) on a full carrier replaces the same way before it resolves, so the carrier is left with a free slot (the normal 博士投影 takes it until the next round start); a target its effect refuses (博士投影 on an elite) keeps both items — PRTS 卫戍协议/帮助 "达到上限强行佩戴会改为替换装备" names no exception (GitHub #263; the client opens the replace dialog for it, `equipReplaces`). Equipped items are otherwise **locked**: `destroy` (销毁) accepts hand / temp items only (`BAD_TARGET 'equipped items are locked'`); equipment goes back to the hand only when its carrier merges, is sold, or is destroyed by 突变细胞's transformation (the cell itself returns too; PRTS 帮助 "在失去该干员（干员出售、销毁、合并等）…时自动卸除", §21.1) — a sale is refused with `HAND_FULL` when there is no room for it; returned equipment is stowed before the operator a transformation gains and before a merge elite's summon cards, and every path that hands the player an item — returned equipment included — ends with the auto-merge, so no player holds two identical mergeable normal items (§21.7).
 
 Economy/shop/pool/merge/hand rules: exactly as research 00-INDEX §3–§4 (income `min(3+r,12)`; prices by tier; refresh 1; freeze toggles all; sell +1; items not sellable; upgrade prices per mode with −1/round; shared pool copies 12/14/18/16/8/5 (缪尔赛思 4) across all players; elite = 3 copies; odds = copy-weighted draw over unbanned visible chess with tier ≤ level; merge 3 (风丸 2) → elite onto the consumed deployed copy's tile, else to the hand (§20.11) + reward offer of 3 **different** free chess of tier `min(level+1, 6)` (copy-weighted; a tier short of different chess tops up from the tier below [ASSUMED], §20.6); full hand blocks every buy / reward pick, a merge-completing one too (PRTS 卫戍协议/帮助 §手牌区, GitHub #82); overflow to temp; a free hand slot pulls the temp pieces back in at once, right → left (`PlayerState._fillHandFromTemp`); temp blocks ready).