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.

test/content/choices.test.js

@@ -406,6 +406,9 @@ test('机密商店 E2E (co-op): two identical cards are two cards — both can b
   // six 变形同构体: every slot draws the one item `coin` names
   const one = Object.values(DATA.items).find((i) => i.name === '变形同构体' && !i.isGolden).id;
   const data = dataWith('mode_multi_hard', 3, 'shop');
+  // This case isolates card-index ownership with sufficient stock; shared-stock.test.js covers exhaustion.
+  data.config = { ...data.config, economy: { ...data.config.economy,
+    itemPoolCopiesOverrides: { ...data.config.economy.itemPoolCopiesOverrides, [one]: 8 } } };
   data.choices = { ...data.choices, shopDraft: { ...data.choices.shopDraft, rounds: [3], slots: Array.from({ length: 6 }, () => ({ coin: 1 })), coin: one } };
   const h = makeMatch({ mode: 'coop', difficulty: 'HARD', humans: 2, bots: 2, seed: 43, data, registry: REG, fake: true });
   const m = h.m;