feedback7 dober: 教鞭 is the official personal choice of three 战术特训 cards again, not a random one (PR #353 by @Sukvii, the owner's decision of 2026-10-08); golden: coop2-NORMAL-8-serverrun and coop2-ABYSS-10-boosted move

Seen: the Art 教鞭 (杜宾's strategy) drew three 战术特训 cards and added a random one — a documented simplification (docs/META.md
§2.5: a personal choice would need its own phase, protocol message, timer and AI takeover). Official: act2autochess
choice_event hunter_band_1 is a PERSONAL_CHOOSE; PRTS 下半 记录 §法术 教鞭 "使用后销毁，于3个战术特训的悬赏任务中选择一项". The
owner decided on 2026-10-08 to follow it. Taken from PR #353 (code and tests by @Sukvii), ported to the split 0.2.2 modules.
Now: ctx.offerBountyChoice -> Match.offerBountyChoice keeps up to three different mode-eligible cards (15 of 20 in 标准 /
险境, 20 in 绝境 / 终极; one meta-rng shuffle) in PlayerState.personalChoice, m.private only (same cards after a
reconnect); g.choice { idx, choiceId } confirms it (Match.pickPersonalChoice: owner, id, round, index; a request without
a choiceId is still the public draft, a stale id never falls through to it). No new phase or timer: Ready is refused while
it is open, the prep's deadline picks at random before the temp pieces and Ready, a bot or a 托管 seat picks with the bounty
scorer (botPickCard, the bots' seeded rng; at the prep's start, after the cast, before Ready; the scheduler's fallback
picks at random if a step fails). The client reuses ChoiceOverlay (personal: no order, no turns, the prep's countdown) over
a locked prep, the Ready reasons, the mock harness; six UI strings in en / ja / ko / zh-TW. An eliminated player's offer
goes with it; invariants.js flags an offer outside its owner's own open prep.
Not taken from the PR: its §25.24 in the released docs/history/0.2.0.md (the 0.2.2 section is the integrator's), its edits
of the Ready toggle beyond the personal-choice case, its tail placement of the i18n keys.
Golden: coop2-NORMAL-8-serverrun (ai_0 杜宾 casts 教鞭 from R2 on and now scores the three cards: teamLp 39 -> 34, virtualMs
121400 -> 118400, rng shop 511 -> 483 / bots 18063 -> 18070 / meta 112 -> 103) and coop2-ABYSS-10-boosted (ai_1 杜宾: virtualMs
121650 -> 124650, shop 590 -> 589 / bots 22075 -> 22096 / meta 141 -> 154); both first differ in round 2, every other scenario
and family is unchanged; node tools/golden.mjs --twice is identical.
Tests: items.test.js (three distinct cards, the tapped one applied once, nothing before the confirm, a refused cast keeps
the Art / count / rng / uid, an eliminated player's offer), economy.test.js (Ready refused, the deadline picks before
endPrep, solo prep untimed), connection.test.js (two players' offers, reconnect, foreign / duplicate / old ids, an offline
player's pick at the deadline), bot.test.js (托管 takeover incl. the failing-step fallback), bot-smarter.test.js (the scorer's
pick, deterministic per seed, no rng draw when nothing is pending), followups.test.js (R14 / R15), draft.test.js,
unitStats.test.js (protocol), hardening.test.js (invariant), gameLogic / playtest3 / playtest4 (view model, Ready reason,
ChoiceView, actions), mock.e2e.test.js and playtest2.real.e2e.test.js (browser, SP_E2E=1).

server/sim/content/items/meta.js

@@ -13,17 +13,19 @@
 //               the target's items skipped the item after a merge)
 //   紧急调度券   a shop operator leaves its slot only when it was actually granted (built-in cleared the slot first)
 //   寻呼模块     the special refresh shows `refresh_cnt` DIFFERENT operators (fewer when the pool has no more)
-//   教鞭       trap_create_self_choice {choice_event: hunter_band_1}: the bounty is a 战术特训 card (choices.json
-//               cards.bounty payout `perfect`, e.g. 战术特训·飞行I "若各自行动阶段就达成完美作战，获得1资金") — PRTS
-//               卫戍协议：盟约 下半/PRTS盟约记录 §法术 教鞭 "于3个战术特训的悬赏任务中选择一项", §机变阶段 "※以下悬赏任务仅由
-//               法术教鞭生成", and 杜宾 加练！ "<教鞭>：使用后为下场战斗添加额外敌人，若自身战斗完美作战可获得资金" (user
-//               playtest #6 item 4 review; the built-in drew any tier ≤ II kill bounty, and research 04 §7 [ASSUMED]
-//               the band family `enemyeffect_b_*`).
-//   “神秘顾客”  the same trap_create_self_choice ("选择一项特殊悬赏任务"; no band grants it in act2, research 04): a band
-//               bounty `enemyeffect_b_*` (research 04 §7 [ASSUMED]: "adds 1 enemy to your next battle, killer gets `coin`
-//               funds").
-//               Both: [ASSUMED simplification, engine: no PERSONAL_CHOOSE overlay] 3 cards whose enemy can appear in the
-//               mode are drawn and one of them is taken at random; the built-in runs when the family is empty.
+//   教鞭       trap_create_self_choice {choice_event: hunter_band_1, choiceType PERSONAL_CHOOSE}: a personal choice of
+//               one of THREE 战术特训 cards (choices.json cards.bounty payout `perfect`, e.g. 战术特训·飞行I "若各自行动阶段就
+//               达成完美作战，获得1资金") whose enemy the mode can field — PRTS 卫戍协议：盟约 下半/PRTS盟约记录 §法术 教鞭
+//               "使用后销毁，于3个战术特训的悬赏任务中选择一项", §机变阶段 "※以下悬赏任务仅由法术教鞭生成", and 杜宾 加练！
+//               "<教鞭>：使用后为下场战斗添加额外敌人，若自身战斗完美作战可获得资金". onArt → ctx.offerBountyChoice
+//               (Match.offerBountyChoice): the three cards go to the owner alone, who confirms one inside the PREP
+//               (g.choice with the offer's id); the prep's deadline or an AI seat resolves it (docs/META.md §2.5). Until
+//               0.2.2 the engine took one of the three at random (user playtest #6 item 4 review; the built-in drew any
+//               tier ≤ II kill bounty, and research 04 §7 [ASSUMED] the band family `enemyeffect_b_*`).
+//   “神秘顾客”  the same trap_create_self_choice ("选择一项特殊悬赏任务"; no band grants it in act2, research 04, and PRTS
+//               lists no pool): still [ASSUMED simplification] 3 band bounties `enemyeffect_b_*` (research 04 §7 [ASSUMED]:
+//               "adds 1 enemy to your next battle, killer gets `coin` funds") whose enemy can appear in the mode, one of them
+//               taken at random; the built-in runs when the family is empty.
 //   “神秘顾客”  trap_disney_special: when actively destroyed, +count funds and the Art passes to the next alive player
 //               (seat order, cyclic)
 //   天师古鼎     equip_with_another_gain_coin_when_gain_char: a 【炎】 carrier also holding 炎国短刀 (either quality)
@@ -48,7 +50,7 @@ function pieceIsMember(ctx, piece, bondId) {
   return bonds.includes('maniShip') && isCoreBond(bondId) && ctx.bondActive('maniShip') && ctx.bondActive(bondId);
 }
 
-/** Offer size of the personal bounty choice (PRTS 法术 教鞭 "于3个战术特训的悬赏任务中选择一项"). */
+/** Cards drawn before “神秘顾客” takes one at random. */
 const OFFER_SIZE = 3;
 /** cards.bounty entries matching `test` whose enemy can appear in this mode. */
 function bountyCards(ctx, test) {
@@ -103,18 +105,24 @@ export function registerMeta(registry) {
     },
   }));
 
-  // 教鞭 / “神秘顾客” — trap_create_self_choice {choice_event}: 教鞭 a 战术特训 card, “神秘顾客” a band bounty (enemyeffect_b_*)
-  for (const [key, family] of [['chess_item_6_03_m', isTraining], ['chess_item_6_01_m', isBandBounty]]) {
-    wrap(registry, key, (base) => ({
-      onArt(ctx, ev) {
-        const cards = bountyCards(ctx, family);
-        if (!cards.length) { if (typeof base.onArt === 'function') base.onArt.call(base, ctx, ev); return; }
-        const offer = ctx.rng.shuffle(cards.slice()).slice(0, OFFER_SIZE);
-        const card = ctx.rng.pick(offer);
-        if (!card || !ctx.addBounty(card)) { ev.error = 'BAD_TARGET'; ev.detail = 'no bounty available'; }
-      },
-    }));
-  }
+  // 教鞭 — trap_create_self_choice {choice_event}: the server keeps the offered 战术特训 cards until confirmed.
+  wrap(registry, 'chess_item_6_03_m', () => ({
+    onArt(ctx, ev) {
+      const result = ctx.offerBountyChoice(bountyCards(ctx, isTraining), ev.item.id);
+      if (!result.ok) { ev.error = result.error; ev.detail = result.detail; }
+    },
+  }));
+
+  // “神秘顾客” — a random band bounty (enemyeffect_b_*).
+  wrap(registry, 'chess_item_6_01_m', (base) => ({
+    onArt(ctx, ev) {
+      const cards = bountyCards(ctx, isBandBounty);
+      if (!cards.length) { if (typeof base.onArt === 'function') base.onArt.call(base, ctx, ev); return; }
+      const offer = ctx.rng.shuffle(cards.slice()).slice(0, OFFER_SIZE);
+      const card = ctx.rng.pick(offer);
+      if (!card || !ctx.addBounty(card)) { ev.error = 'BAD_TARGET'; ev.detail = 'no bounty available'; }
+    },
+  }));
 
   // 画卷 — trap_copy_front_char: copy the operator in range (elite status included) with its equipment. A copied
   // normal item that completes a pair with an owned one merges at once and the golden stays in the hand (research 04