feedback7 R22-RENDER: 琳琅诗怀雅's 香槟炸弹 never shows an HP bar — PRTS 备注 "即使自身生命值未满，模型下方也不会显示生命值槽" (owner item 11); golden: unchanged

The owner reported 「琳琅诗怀雅的2技能的香槟会掉血，会被治疗」. Allies always draw an HP bar (render/units.js
_updateHud), so the bomb's every HP change showed. PRTS 香槟炸弹 (实体类型 装置, 1000 HP) says no HP bar is shown even
below full HP; nothing there makes it invulnerable or unhealable. Its bar is now hidden at any HP (NO_HP_BAR). Its HP,
the damage it takes (活性源石 hurts what stands on it — 70 true damage a second) and healing are left as they are: no
invulnerability added; whether it should be unhealable is the owner's decision (no written source says so).

Tests: test/render/champagne-hpbar.test.js (new, 2: no bar at full HP, hurt or healed; another summon keeps its bar)
2/2; render/unitview 35/35.

public/js/render/units.js

@@ -117,6 +117,12 @@ const nowMs = () => (globalThis.performance ? globalThis.performance.now() : Dat
  *  无头像; data/assets.json has no avatar or model for it, so the token fallback showed 圣聆初雪's own face) — the marker of a
  *  frozen gate. */
 const ICE_TOKENS = new Set(['token_10058_sbell2_icetgt']);
+/**
+ * Units that never show an HP bar: 琳琅诗怀雅's 香槟炸弹 — PRTS 香槟炸弹 备注 "即使自身生命值未满，模型下方也不会显示生命值槽"
+ * (the owner's report of 2026-10-08, 「香槟会掉血，会被治疗」: the bar showed every change). Only the bar: its HP, the
+ * damage it takes (活性源石 hurts what stands on it) and healing are unchanged — no source makes it invulnerable.
+ */
+const NO_HP_BAR = new Set(['token_10031_swire2_gdtrap']);
 const ICE_FRAME = 0x9fe6ff;
 /** How long a view waits for its avatar before showing the image-less placeholder diamond. */
 const PIC_WAIT_MS = 400;
@@ -1249,7 +1255,7 @@ export class UnitView {
     const prep = this.prep;
     const showBars = !prep && this.alive && this.info.kind !== 'item';
     const damaged = this.hp < this.maxHp - 0.5;
-    const showHp = showBars && (!this.isEnemy || damaged || this.isBoss);
+    const showHp = showBars && (!this.isEnemy || damaged || this.isBoss) && !NO_HP_BAR.has(this.info.defId);
     const bw = clamp(s * (this.isBoss ? UNIT.bossBarWidth : UNIT.barWidth), 24, this.isBoss ? 260 : 96);
     const bh = clamp(s * (this.isBoss ? 0.12 : 0.075), 3, this.isBoss ? 12 : 7);
     // a knocked-down operator's HUD is its redeploy ring alone, drawn at full strength over the greyed model