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/match/clientCombat.test.js

@@ -286,7 +286,7 @@ test('Final Assault: two client-run pair fields share the server pool (b.progres
   m.dispose();
 });
 
-test('Final Assault: leaks and leader LP effects from b.progress drain the team LP; overtime after 150 real s at 1 LP/real s; team LP 0 → b.end → defeat', () => {
+test('Final Assault: leaks and leader LP effects from b.progress drain the team LP; all-human overtime after 120 real s at 1 LP/real s; team LP 0 → b.end → defeat', () => {
   const h = makeMatch({ mode: 'coop', difficulty: 'FUNNY', humans: 2, seed: 9109, fake: true, clientCombat: true, instant: false,
     script: (b) => (b.kind === 'boss' ? { bossDps: 0, leakEvents: [{ at: 2, lpr: 3 }], lpLossEvents: [{ at: 3, amount: 2 }] } : { duration: 2 }) }).start();
   const m = h.m;
@@ -296,14 +296,14 @@ test('Final Assault: leaks and leader LP effects from b.progress drain the team
   h.sched.advance(4000);
   assert.equal(m.teamLp, lp0 - 5, 'leak lpr 3 + leader effect 2');
   const lp1 = m.teamLp;
-  // overtime (bossTurnHpReduceTime): 150 REAL s like the level's 120 s countdown, then 1 LP per real second
+  // All-human teams start overtime at the visible level countdown, without the AI team's extra 30 seconds.
   const t0 = m._bossStartAt;
   const pub = () => h.bc.filter((x) => x.t === 'm.public').pop();
   m.flush(true);
   assert.equal(pub().deadline, t0 + 120000, 'the HUD counts the boss level\'s 120 s down');
-  assert.equal(pub().overtimeAt, t0 + 150000, 'and knows when the drain starts');
-  h.sched.advance(t0 + 150000 - m.sched.now() + 500);
-  assert.equal(m.teamLp, lp1, 'no drain before 150 real s (the countdown ran out at 120 s, the battle went on)');
+  assert.equal(pub().overtimeAt, t0 + 120000, 'and knows when the drain starts');
+  h.sched.advance(t0 + 120000 - m.sched.now() + 500);
+  assert.equal(m.teamLp, lp1, 'the first deduction is at the next whole real second');
   h.sched.advance(5000);
   assert.ok(m.teamLp <= lp1 - 4 && m.teamLp >= lp1 - 6, `overtime drain ≈ 5 LP over 5 real s (${lp1} → ${m.teamLp})`);
   const end = h.runToEnd();