Playtest #6 fixes: summons placed by hand, boss pool stall, bounties, 联防 leak counter, distinct offers, 机变 card text, phone buy tap, skill triggers, blocking, push force, 孤立, enemies, element bar

- #1 #2 skill / device summons (赫默's drone, 巫恋's doll, 凯瑟琳's devices) are hand cards placed by the player;
  placed summons deploy once at battle start, then a skill summon re-appears at its tile on each cast (the user's call)
- #3 叙拉古 隐匿 ends on time (32 + 0.4 × layers s); 忍冬 S3 迷彩 lasts until her next cast (official), kept apart from 隐匿
- #4 multi-round bounty cards last two battles (the user's call; MULTI_ROUND_BOUNTY_BATTLES), blue / red card text
- #5 the shared boss pool's float dust (≈3.6e-12 HP) stalled Final Assault leaders at 0 %; < 1 HP now clears the pool,
  and the team LP reaching 0 first is a defeat (PRTS)
- #6 #10 机变 cards show their official effect text; an invisible 详情 button no longer swallows the confirming tap on phones
- #7 live ×N counter of a leaker's enemies still on the 联防 field (LP loss stays capped at 10)
- #8 #15 #16 skill triggers per 技能策略: skill-range triggers, injured-ally heals (古米, 塞雷娅), tank take-damage
  triggers with a 3 s cooldown; 新约能天使 S2 shields the highest-aggro operator in range
- #9 official per-enemy model scales (威龙)
- #11 element bar under the unit's HP bar (white = 元素值 left, element-coloured refill after a burst), floor rounding
- #12 枯朽战车 kit per PRTS; every ranged enemy reaches its target's 0.25 collider
- #13 恐惧 wander (萨科塔之翼 at half HP, operator fears make enemies flee) with re-planning after pushes
- #14 push / pull distance by 力度 − 重量 (PRTS table); #17 every blocker attacks what it blocks; ASPD floor 20
- #18 炎佑 is 孤立: no heals or ally buffs
- #19 every free pick-one chess offer (promotion reward, 信标, 寻呼模块) shows different operators
- DESIGN §20 and the normative lines, SIM / META / DATA / PLAYING updated; 2747 unit tests and all 27 browser suites
  green; dev recordings regenerated

shared/constants.js

@@ -52,6 +52,18 @@ export const AREA = Object.freeze({ BOARD: 'board', HAND: 'hand', TEMP: 'temp',
 
 export const PIECE_KIND = Object.freeze({ CHESS: 'chess', ITEM: 'item', TOKEN: 'token' });
 
+/**
+ * Whether the placed piece of a skill's summon (赫默's 医疗探机, 巫恋's 诅咒娃娃) also deploys once, for free, at the
+ * battle start. true = the PRTS reading (卫戍协议/帮助 §作战阶段: "所有手动部署的召唤物，无视所属干员的持有状态…作战开始时
+ * 立即部署一次", example 赫默's drone), settled by the user on 2026-10-01 after playtest #6 (DESIGN §20); false = the
+ * playtest #4 reading ("是赫默开技能释放一次，不是开局直接就部署了"): it takes its tile only when the owner's skill gives one.
+ * Either way the piece re-appears on its tile each time the owner's skill gives one.
+ * One switch for everything that depends on it: the sim (server/sim/content/tokens.js dockSkillSummons) and the summon
+ * card's hint (public/js/ui/detailPanel.js summonDeployHint). docs/PLAYING.md §4 and docs/SIM.md (token pieces) state
+ * the rule in prose — test/ui/playtest6_summons.test.js fails until they match the value.
+ */
+export const SKILL_SUMMON_START_DEPLOY = true;
+
 // Snapshot unit flag bits (DESIGN §8.2)
 export const UF = Object.freeze({
   BLOCKED: 1, STUNNED: 2, FROZEN: 4, STEALTH: 8, SKILL: 16, SHIELD: 32, INVULN: 64, COLD: 128, SLEEP: 256, FLYING: 512,