feedback7 UIBACK: upgrading the 调度中心 opens the new shop slot EMPTY — the next refresh or round start fills it; 0.2.0's fill-at-once (464a823, item 19) reverted (GitHub #332 and PR #333 by @2321Robin, official recording BV1AXwuzdEys 1:39 — authored by them: the economy.js change, the rewritten level-slots test and the docs hunks applied as reviewed, without the PR's UPGRADE_FILLS_NEW_SLOTS flag and LOCAL RULING comment: the empty slot is the rule): the shop bar draws a null operator slot as a bare dashed frame (EmptyCard, inert scard--sold) instead of the SOLD OUT 「已招募」 frame, one new UI string in the four packs; META.md §3 and §7 and PLAYING.md say so; the dev mock opens the slot empty and survives null slots; test/ui/shop-empty-slot.e2e.test.js; golden: only matches moves, all 18 (the bots' shop RNG stream) — end results changed in solo-FUNNY-1 defeat→victory, solo-NORMAL-1 and solo-HARD-1 victory→defeat, solo-HARD-2 and solo-ABYSS-1 defeat→eliminated, coop2-NORMAL-14-standins defeat→victory (2 distinct stand-ins fielded: golden-standins.test.js asks ≥ 2); roster, bonds, fields, standins, diy unchanged

docs/META.md

@@ -508,7 +508,7 @@ Any `choice:` handler whose EffectRef reuses its own key must guard like this (o
 * **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; an upgrade opens the new level's
-  extra slots at once with new cards (the cards shown stay); `MAX_LEVEL` at 6. One freeze
+  extra slots at once, empty (the cards shown stay; the empty slots fill on the next roll); `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;
@@ -826,9 +826,11 @@ 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.
-* 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.
+* A level-up opens the new level's extra slots at once — empty, with no card drawn into them (official footage, GitHub
+  #332: bilibili BV1AXwuzdEys 1:39, a 1→2 upgrade with the new slot visible and empty; the official texts only ever say
+  「升级后将出现更多的商品栏位」/「增加刷新栏位」) — and keeps the cards shown. The empty slots fill on the next roll (a manual
+  refresh or the round start), like every unfrozen slot; the shop draws an empty slot as a bare frame, never 已招募. 0.2.0
+  drew a card into each new slot (community report item 19, one uncorroborated remark): reverted in 0.2.2.
 * 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

@@ -49,7 +49,7 @@
 | 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；盟约之币、博士投影等装备即销毁的道具也一样，先销毁选中的那件再生效，干员留下一个空栏位，精锐干员不能使用博士投影，此时什么都不销毁），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 |
+| 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，**新栏位立刻出现，但空着不补干员**（官方如此：升级只开位，新位在下一次刷新——手动刷新或回合开始的自动刷新——时才会出现干员；空栏位只画一个空框，不写「已招募」），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）。