0.2.4-dev: round-29 community fixes and the official shared card pool

- Shared card pool and item stock as in the official mode (the owner's request, from the 路标档案馆 video and public notes): solo low-tier exceptions, co-op operators x2, shared item stock with special-item exceptions, normal / advanced occupancy 1 / 2, re-check on buy, 机变 exhaustion, release on consume / destroy / elimination; 整备 never exceeds stock; invariant held <= cap.
- 突袭: one taunt-first reselect right after a revive (the owner's rule); ordinary polls and redeploys keep the 0.2.3 rule; a revive on an enemy's tile stays. #475: online boss / hidden-boss Raid may land on the empty half (owner-limited scope).
- 浊心斯卡蒂 S1 x 坚守 no longer bounce redirected damage, and the two shares conserve the hit (idea of PR #464 by @HappyTanuki).
- Operator fixes adapted from PRs by @Xinglan233 (#459 哈洛德 S2 elemental trigger, #460 涤火杰西卡 shield on the four adjacent tiles, #461 家族徽章 first hit after stealth, #462 松果 S2 regrow per deploy); 克莱门莎 S2 splash 1.1 / 100% ATK and air auto-trigger (#467); 白面 copying 歌蕾蒂娅 / 余 skips the three-member condition (#473, the owner's video).
- 香槟炸弹 is not chosen by friendly auras / heals (PR #468 / #476 by @Siornya); 琳琅诗怀雅 coin balance (PR #450 by @IceCodeNew); Touch prep display (PR #451 by @YinqiMargatroid); lobby header (PR #471 by @YuriRestia); Japanese UI terms (PR #448 by @scutkane).
- AI-only boss countdown grace, render-failure cache / recovery without restarting a battle, device units kept on a same-field re-entry, DIY detail / skill previews, large-text result buttons.
- golden: battle families equal 0.2.3 except diy-135 / diy-136 (克莱门莎); all 18 release matches move through the shared pool, every flip named in docs/history/0.2.4.md §29.12; two coverage scenarios added.

server/match/Match.js

@@ -178,7 +178,7 @@ import { DataSource } from '../sim/simdata.js';
 import { createRng, deriveSeed } from '../sim/rng.js';
 import { GameData } from './gamedata.js';
 import { RealScheduler } from './scheduler.js';
-import { SharedPool, drawDisabledBonds } from './pool.js';
+import { SharedPool, SharedItemPool, drawDisabledBonds } from './pool.js';
 import { PlayerState } from './PlayerState.js';
 import { EffectDispatcher, getDefaultRegistry } from './effectsMeta.js';
 import { setupMatchWaves } from './waves.js';
@@ -332,6 +332,7 @@ export class Match {
     this.staticInactiveBonds = bans.staticOff;
     this.bannedChess = bans.banned;
     this.pool = new SharedPool(this.gd, { banned: bans.banned });
+    this.itemPool = new SharedItemPool(this.gd, () => this.order);
     // 自选编队 (0.2.0): each human's slotted DIY pieces get their own stock — none for one whose bonds are all off this
     // match (player/diy.js initDiyStock); no randomness is drawn here
     const off = new Set([...bans.drawn, ...bans.staticOff]);