Playtest #5 fixes: hovering enemies, target order, blocking hand-over, 联防 knocked-out, elements, huge-boss hit area, maps, gear icon, phone HUD, 至简 price

- #1 近地悬浮 enemies count as air units (Unit.isFlying): ground-only attacks, splash, terrain and traps skip them;
  PRTS 不可对空 skill effects made ground-only; 掠海漂移体 / 吉兆飞鳞 drop modes; the bot plans them as air
- #2 an operator knocked out before 联防 is fielded and force-exited (PRTS 强制退场): it lies on its tile with the
  redeploy ring and redeploys (full timer [ASSUMED]); partners, observers and the server fallback included
- #3 element audit of every operator, item and enemy: 海嗣 numbers are official; bursts are 无来源, 元素脆弱 only
  raises 元素伤害, 元素抗性 applied, 盟约·辅助干员 fills all three gauges, 菲莱 / 哈洛德 / 纯烬 / enemy kits fixed
- #4 blocking by the official contact radius (0.7071): another operator in contact takes over at once when the
  blocker dies, withdraws or is stunned; melee blockers attack what they block
- #5 enemy target order per PRTS 索敌: blocker, special priority, taunt, last deployed; initial deploy 从上到下>从左到右,
  operators before summons; special priorities break ties by taunt then deploy order
- #6 act2 m01's normal-field blower machines (row 13) are drawn in the normal / 联防 views
- #7 Final Assault prep legality reads the player's half of the boss field (fence tiles deployable); all 11 stages
  audited against the official level files
- #8 regular settings gear; #9 the prep camera keeps the bench and temp rows clear of the shop bar on phones
- #10 huge bosses have the official 4.95 × 2.95 hit area (sim/body.js) and are 自缚 / unblockable
- #11 至简 costs 1: 购买价格为N's bb.price is a discount off the tier price, applied before other price effects
- DESIGN §19 and the normative §3 / §5 / §6 / §7 lines, SIM / META / DATA / PLAYING updated; 2595 unit tests and
  every browser suite green; dev recordings regenerated

test/ui/playtest2.real.e2e.test.js

@@ -201,12 +201,16 @@ async function untilPrep(c, pred, what, timeout = 90000) {
   }
 }
 
+// The field's 3D area ends at its separator row 13 — the row-13 devices blow into the field (act2 m01's blowers, user
+// playtest #5 item 6: render/app.js boardArea) — and the enemy preview pen starts at row 14.
+const NO_PEN_R1 = 13;
+
 function assertNoPen(v, tag) {
   assert.deepEqual(v.orphans, [], `${tag}: no stale unit sprite of another field`);
   assert.equal(v.penVisible, 0, `${tag}: no pen figure`);
   assert.equal(v.penRowsDrawn, false, `${tag}: no pen rows drawn (${v.band})`);
   assert.ok(v.band && v.band[1] <= 13, `${tag}: drawn rows ${v.band}`);
-  if (v.area3d != null) assert.ok(v.area3d <= 12, `${tag}: 3D area without the pen block (${v.area3d})`);
+  if (v.area3d != null) assert.ok(v.area3d <= NO_PEN_R1, `${tag}: 3D area without the pen block (${v.area3d})`);
 }
 
 describe('user playtest #2 item 6 — 前往查看 → 返回战场 in combat (real server)', { skip: !ENABLED && 'set SP_E2E=1 (Chrome + public/assets)' }, () => {