feedback5 CB5: a 调度中心 upgrade opens the new level's extra slot at once with a new card, the cards shown stay in place (community report of 2026-10-06, item 19; the official tutorial's 休整期 page: 「升级后将出现更多的商品栏位」)

Until 0.2.0 the shop kept its old slot count until the next roll (a refresh or the round start), so a
level-up 1→2 (险境: 3→4 operator slots) or 3→4 (4→5; 标准: 5→6) showed no new card.
PlayerState._openLevelSlots (player/economy.js): the extra slots of the new level are appended to the
chess slots (the item slot stays after them), each drawn at the new level; [ASSUMED] the new card follows
the freeze toggle as a manual refresh's cards do. audit.js checks the slot count and that every card
shown before stays in place. Docs: META.md §3 / §7, PLAYING.md.

Golden: matches — all 18 scenarios moved (solo-FUNNY-1/2, solo-NORMAL-1/2, solo-HARD-1/2, solo-ABYSS-1/2,
coop2-NORMAL-3, coop2-HARD-4, coop3-ABYSS-5, coop4-FUNNY-6, coop4-ABYSS-7, coop2-NORMAL-8-serverrun,
solo-HARD-9-boosted, coop2-ABYSS-10-boosted, coop2-NORMAL-14-standins, coop2-NORMAL-70-diy): every bot
levels its shop and now sees (and draws the shop RNG for) the new card at once, so purchases and boards
part from there. roster / bonds / fields / standins / diy unchanged; no engine error stored.
Tests: test/match/feedback5-shop-levelslots.test.js (new).

docs/META.md

@@ -505,7 +505,8 @@ Any `choice:` handler whose EffectRef reuses its own key must guard like this (o
   items by `price`, refresh 1 (free refreshes first), sell +1 (elite too; items cannot be sold, only destroyed).
 * **Shop**: `shopSlots[level]` chess slots + item slot(s), copy-weighted rolls over remaining pool copies of unbanned,
   visible chess with tier ≤ level; item slot: tier by the same shares, uniform item within the tier. Level-up price =
-  base per mode, −1 each round start (floor 0), reset to the next base after upgrading; `MAX_LEVEL` at 6. One freeze
+  base per mode, −1 each round start (floor 0), reset to the next base after upgrading; an upgrade opens the new level's
+  extra slots at once with new cards (the cards shown stay); `MAX_LEVEL` at 6. One freeze
   toggle freezes every unsold slot until the next round start; a manual refresh rerolls everything (new slots stay
   frozen). Unfrozen slots are cleared at combat start. Slot positions are stable (frozen slots keep their index).
 * **Pool**: copies 12/14/18/16/8/5 (缪尔赛思 4); a normal piece holds 1 copy, an elite 3; displays never reserve copies;
@@ -823,7 +824,9 @@ round was over. The official 1 s `broadcastBeginDelay` is not modelled.
   units > active bond > Σ active layers > standing > seat; the ranks marked 存疑 in PRTS). Unite enemies re-enter with
   their original stats on the official 联防 spawn timing (waves.js `buildUniteWave`, DATA.md §15 #22).
 * A manual refresh while frozen keeps the new slots frozen until the next round start.
-* Level-up does not add slots until the next roll (refresh / round start).
+* A level-up opens the new level's extra slots at once, each with a new card drawn at the new level, and keeps the
+  cards shown (0.2.0, community report item 19; the official tutorial's 「升级后将出现更多的商品栏位」); the new card
+  follows the freeze toggle like a manual refresh's cards.
 * Buying a second copy of an equipped normal item merges into the golden item in the hand (not equipped).
 * Promotions by effects (升华, 博士投影) keep the equipment; merges return it; 突变细胞's transformation returns it (the
   cell included) before its new operator is gained into the 整备区 — the carrier's tile is left empty (official footage,

docs/PLAYING.md

@@ -48,7 +48,7 @@
 | 出售干员 | 任何干员（含精锐）都只返还 **1** 资金 |
 | 装备 / 法术 | 调度中心出售除特殊装备外的所有装备：4 把特殊维式重锤（战栗 / 坚固 / 加速 / 灼燃）只来自维多利亚盟约（每 25 层）和洛洛的定制品，突变细胞只来自昆图斯的策略。装备不能出售，整备区里的只能「销毁」（不返还）。已配发的装备锁定在干员身上：只能被第三件装备替换（弹出替换窗口，选择要替换的一件，它会被销毁），或在干员出售 / 合成精锐时退回整备区。**突变细胞**不会用完：战斗结束后装备者被销毁（部署在场上的话，原来的格子空出来，剩余可放置角色加 1），突变细胞和它的其他装备先退回整备区，可以再次配发给任意干员；随后获得一名高一阶（最高 VI）的随机普通干员（装备者是精锐也一样），和其他新获得的干员一样进入整备区（满了进入临时整备区），需要自己重新部署；如果它凑齐了合成所需的同名干员，照常合成精锐。**坚固维式重锤**首次受到致命伤害时锁血 8 秒，**每次部署一次**：被击倒再部署（或突袭跳跃再部署、被 M3茧甲 / 埃芒加德复活）后又能锁一次，娜仁图亚策略借来的锤子也一样；借用到期时正在锁血的会锁满 8 秒；站在阿戈尔干员身前被开场吞噬、自带源石溶剂掉血时也会用掉这一次 |
 | 冻结 | 免费，保留当前所有未买的格子到下一回合；冻结状态下仍可主动刷新 |
-| 升级调度中心（1→2 … 5→6） | 险境及以上 5 / 8 / 11 / 12 / 13；同盟标准 5 / 8 / 10 / 11 / 11；独立标准 1 / 1 / 5 / 8 / 10。**每过一回合价格 −1**（最低 0），升级后按下一级的价格重新计算 |
+| 升级调度中心（1→2 … 5→6） | 险境及以上 5 / 8 / 11 / 12 / 13；同盟标准 5 / 8 / 10 / 11 / 11；独立标准 1 / 1 / 5 / 8 / 10。**每过一回合价格 −1**（最低 0），升级后按下一级的价格重新计算。升级到干员栏位更多的等级（险境及以上 2 级 4 个、4 级 5 个；标准 2 级 4 个、6 级 5 个）时，**新栏位立刻刷出一名新干员**，已有的卡片不变 |
 | 其他收入 | 悬赏敌人、盟约「远见」「奇迹」、装备「骑士储蓄罐」、部分策略和特质 |
 
 调度中心等级决定商店能出现的**最高阶级**和格子数（险境及以上：干员 3 / 4 / 4 / 5 / 5 / 5 格 + 装备 1 格）。