Playtest #6 follow-up (v2.5.1): leader HP review — 直接乘算, one debuff instance, 999 layer cap, 限伤; elite to the board; 假想敌：胄 kit

- co-op leaders died within seconds: leader HP is the official data (40 values pinned); bond / strategy / item /
  机变 / 特质 "+X%" bonuses now add up (PRTS 直接乘算) instead of compounding; a same-named enemy debuff keeps one
  (strongest) instance per target (奥术 across a pair field); leader parts pass damage 1:1; fixed co-op pool (the user's call)
- official limits read from the client: each bond stops at 999 layers (MAX_GARRISON_STACK); a leader hit of 300000+ in
  boss / hidden battles is cancelled (MAX_BATTLE_DAMAGE, 限伤) — shared/constants.js switches, research 11
- a merge that consumes a deployed copy puts the elite on that tile and facing (user-confirmed); gold target highlight,
  promotion effect
- 假想敌：胄 per PRTS: one shell, shells within range, any drone death costs 2 % max HP, 剑/锤 sorties and 瘫痪
- DESIGN §20.10–§20.14; 2842 unit tests, all 28 browser suites green; Chrome = Node on boss fields

test/e2e/client.mjs

@@ -47,6 +47,7 @@ export async function startRealServer(opts = {}) {
     if (opts.fast.kit != null) env.SP_START_KIT = String(opts.fast.kit);
     if (opts.fast.chess?.length) env.SP_START_CHESS = opts.fast.chess.join(',');
     if (opts.fast.items?.length) env.SP_START_ITEMS = opts.fast.items.join(',');
+    if (opts.fast.shop?.length) env.SP_START_SHOP = opts.fast.shop.join(',');
     if (opts.fast.idleBots) env.SP_IDLE_BOTS = '1';
   }
   const child = spawn(process.execPath, [entry], { cwd: ROOT, env, stdio: ['ignore', 'pipe', 'pipe'] });