feedback1 WA: return the Mutation Cell before summon cards; bots keep it

Review follow-ups for reports #1 and #4.

- transformChess: the returned equipment is stowed before the new operator's
  summon stack is granted (as in _mergeChess); when the transformation
  completes a merge, the carrier's equipment goes through _mergeChess, which
  also returns it before the elite's summons. A summon card no longer pushes
  the returned 突变细胞 into temp, where it would be lost at the deadline.
- bot: a 突变细胞 left in temp with a full hand gets a hand slot (sell the
  weakest single hand chess, else destroy the cheapest other hand item, else
  sell any hand chess) instead of being destroyed.
- 拉普兰德's per-piece counter key is module-prefixed; the re-bought copy
  case is marked [ASSUMED] in the code and docs/META.md.
- .dhint--rule gets a style; sources quote PRTS 卫戍协议/帮助 exactly
  ("在失去该干员（干员出售、销毁、合并等）…时自动卸除").

tools/build-data.mjs

@@ -1360,9 +1360,10 @@ const SHOP_EXCLUDED_ITEMS = Object.freeze({
  * Rules the official item text leaves out, by normal item id (both qualities): `note` = a player-facing line shown under
  * the effect in the item card (items.json `note`), `implFormula` replaces research 04's formula.
  *   突变细胞 — not consumed (player feedback after 0.1.0): PRTS 卫戍协议：盟约 下半/PRTS盟约记录 备注 "生效时，原干员销毁，
- *     获得一名高一阶的随机初始干员（最高六阶）"; the text never says 销毁 for the cell (every consumable item's does), and
- *     players re-inject it every round ("之后就是一直打针，扎到核心卡或者叠层手干员就换人扎", bilibili cv47000418;
- *     BV1pEQ3BhEEi "如果四回合出了伊内丝，就考虑先不扎针") — the destroyed operator's equipment returns to the hand.
+ *     获得一名高一阶的随机初始干员（最高六阶）", and a destroyed operator's equipment comes off (PRTS 卫戍协议/帮助 "佩戴的
+ *     装备无法手动卸除，在失去该干员（干员出售、销毁、合并等）或装备合并为进阶品质时自动卸除"); the text never says 销毁 for
+ *     the cell (every consumable item's does), and players re-inject it every round ("之后就是一直打针，扎到核心卡或者叠层
+ *     手干员就换人扎", bilibili cv47000418; "这个道具可以无限使用", cg.163.com guide 2025-11-15).
  */
 const ITEM_RULES = Object.freeze({
   chess_item_5_08_e_a: {