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.e2e.test.js

@@ -392,6 +392,10 @@ describe('user playtest #2 — UI fixes (mock harness, headless Chrome)', { skip
     };
   });
 
+  // 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;
+
   test('6: the enemy pen shows only in the pen view — never with the prep board (after 返回战场) or any battle', { skip: skipUnless('pen'), timeout: 5 * 60 * 1000 }, async () => {
     const { page, problems } = await open('phase=PREP', { w: 1920, h: 1080 });
     let s = await penState(page);
@@ -399,7 +403,7 @@ describe('user playtest #2 — UI fixes (mock harness, headless Chrome)', { skip
     assert.ok(s.pen > 0, 'the pen holds the next round\'s enemies');
     assert.equal(s.penVisible, 0, 'prep board: no pen figure shown');
     assert.equal(s.penRowsDrawn, false, 'prep board: pen rows not drawn');
-    if (s.board3d) assert.ok(s.area3d <= 12, `prep board: 3D area without the pen (${s.area3d})`);
+    if (s.board3d) assert.ok(s.area3d <= NO_PEN_R1, `prep board: 3D area without the pen (${s.area3d})`);
     await page.screenshot({ path: path.join(OUT, 'fix-pen-prep.png') });
     await page.click('.enemybtn');
     await page.waitForFunction(() => document.querySelector('.gm')?.dataset.camera === 'pen', { timeout: 3000 });
@@ -416,7 +420,7 @@ describe('user playtest #2 — UI fixes (mock harness, headless Chrome)', { skip
     s = await penState(page);
     assert.equal(s.penVisible, 0, 'back on the board (返回战场): no pen figure');
     assert.equal(s.penRowsDrawn, false, 'back on the board: pen rows not drawn');
-    if (s.board3d) assert.ok(s.area3d <= 12, 'back on the board: no pen area');
+    if (s.board3d) assert.ok(s.area3d <= NO_PEN_R1, `back on the board: no pen area (${s.area3d})`);
     await page.screenshot({ path: path.join(OUT, 'fix-pen-back.png') });
     assert.deepEqual(problems, []);
     await page.close();
@@ -428,7 +432,7 @@ describe('user playtest #2 — UI fixes (mock harness, headless Chrome)', { skip
       const b = await penState(o.page);
       assert.equal(b.penVisible, 0, `${phase}: no pen figure`);
       assert.equal(b.penRowsDrawn, false, `${phase}: pen rows not drawn`);
-      if (b.board3d) assert.ok(b.area3d <= 12, `${phase}: no pen area (${b.area3d})`);
+      if (b.board3d) assert.ok(b.area3d <= NO_PEN_R1, `${phase}: no pen area (${b.area3d})`);
       await o.page.screenshot({ path: path.join(OUT, `fix-pen-${phase.toLowerCase()}.png`) });
       assert.deepEqual(o.problems, [], phase);
       await o.page.close();