feedback6 R21D: a consume-on-equip item on a full carrier opens the replace dialog and replaces the picked item first (GitHub #263, PR #264); golden: matches 10 of 18 moved (a targeted consumable on a full carrier now destroys the oldest item), the rest unchanged

PRTS 卫戍协议/帮助 §装备: 「达到上限强行佩戴会改为替换装备：指定一件已佩戴装备替换为将要佩戴的装备，并销毁被指定的装备」,
no exception for the 装备时销毁 items. Before: a normal 博士投影 opened no dialog and its kept item pushed the OLDEST
equipped item out (replaceUid ignored); 盟约之币 and the other consumables kept both items.

- server PlayerState.equip (player/items.js): on a full carrier the consume path takes the pick (replaceUid, else the
  oldest) off before onEquip (_takeReplaced), destroys it (onDestroy reason replace) once the effect went through —
  the normal 博士投影 takes the freed slot —, and puts it back at its index when the effect refuses (博士投影 on an elite:
  nothing destroyed)
- client gameLogic equipReplaces: the replace dialog opens for every item on a full carrier, consumables included,
  except an attaching item that completes an item merge and a 博士投影 on an elite; itemAttaches removed
- bots (itemTarget): a consumable whose effect is the same on anyone goes to a carrier with a free slot first (PR #264)
- docs: design/match.md equipment rules, META §2.5, PLAYING 装备 row, research 04

golden (matches only; each traced equip by equip against the parent — the first change of state is a bot's, or the
AI 托管 human seat's, targeted consumable on a full carrier destroying its oldest item): solo-FUNNY-1 (r9 ai_0 随身身份牌),
solo-FUNNY-2 (r9 ai_0 寻呼模块), solo-HARD-2 (r9 ai_0 随身身份牌, r12 简易通讯机), coop2-NORMAL-3 (r9 ai_1 随身身份牌),
coop3-ABYSS-5 (r11 ai_1 随身身份牌), coop4-FUNNY-6 (r4 ai_1 随身身份牌), solo-HARD-9-boosted (r14 ai_0 随身身份牌),
coop2-ABYSS-10-boosted (r13 ai_0 随身身份牌, r14 ai_1 简易通讯机), coop2-NORMAL-14-standins (r9 ai_0 随身身份牌; now won,
14 rounds), coop2-NORMAL-70-diy (r14 h_0 随身身份牌); the bots' free-slot carrier for target-agnostic consumables moves
no scenario by itself; roster / bonds / fields / standins / diy unchanged

server/match/bot.js

@@ -1736,7 +1736,8 @@ function lastPerfect(m, ps) {
  *     deployed operator;
  *   突变细胞 (the carrier becomes a random tier + 1 operator after the battle): cellTarget;
  *   随身身份牌 / 简易通讯机 / 寻呼模块 (act on the carrier's bonds): the operator whose bonds matter most (focus first);
- *   funds, 紧急调度券, 人事部文档 …: anyone; a bond signature item (requiresBondId): a member of that bond;
+ *   funds, 紧急调度券, 人事部文档 …: anyone, one with a free slot first (on a full carrier the item replaces one of its
+ *     items, GitHub #263); a bond signature item (requiresBondId): a member of that bond;
  *   other equipment: the strongest deployed damage dealers with a free slot (SURVIVAL items blockers first).
  */
 export function itemTarget(m, ps, item, ctx = context(m, ps)) {
@@ -1784,8 +1785,10 @@ export function itemTarget(m, ps, item, ctx = context(m, ps)) {
   }
   const consume = typeof rec.kind === 'string' && rec.kind.startsWith('consume_on_equip');
   const list = byVal(deployed);
-  if (consume) return list[0] || owned[0] || null;
   const free = (p) => (p.items || []).length < gd.equipPerChess;
+  // a consumable on a full carrier destroys one of its items (the replace rule, GitHub #263): a carrier with a free slot
+  // first — the effect is the same on anyone
+  if (consume) return list.find(free) || owned.find(free) || list[0] || owned[0] || null;
   if (rec.requiresBondId) {
     const member = list.find((p) => free(p) && (chessRec(m, p.id, ps)?.bonds || []).includes(rec.requiresBondId));
     if (member) return member;