Playtest #3 fixes: lost models, picking, live LP, temp overflow, 蕾缪安 S3, 回环射手, FX, detail card, spinners

- #1 lost operator models: the Spine store no longer hands out a skeleton whose unload is in flight
  (PIXI.Assets.unload is async); eviction runs 1 s after a release and the empty-scene budget only after 3 s
- #7 picking: one shared rule (render/pick.js, pixel probe where bodies overlap) for prep/battle clicks,
  hover, the enemy pen and equipment drops; the drag ghost stands on its drop tile; hover probes capped
  at one per frame
- #2 the top-bar LP drops live as the own battle's enemies enter the blue gate (−N, 联防中), teammates'
  pending LP in the team panel
- #3 temp overflow pieces that arrive after a prep deadline survive through the next prep (tempDue);
  temp-row warning and ready-button reason
- #4 蕾缪安 S3: locks every 0.5 s, then one shell every 0.3 s in lock order (PRTS notes), bombardShell fx
- #5 回环射手: real boomerang (out 15, back 3.75 tiles/s, attack only when every boomerang is caught)
- #6 visible projectiles, muzzle flashes, slashes, skill bursts and auras at unchanged frame cost
- #8 特质 right under the detail card header, with its official type icon
- #9 no spinning busy cursors / spinners next to texts; game data warmed before the match
- docs, recordings and tests updated (2414 unit tests, all browser suites green)

public/css/emotes.css

@@ -41,7 +41,7 @@
 }
 .ewheel__btn.has-sprite:hover:not(:disabled), .ewheel__btn.has-sprite.is-on { color: #fff; filter: brightness(1.18); border: 0; }
 .ewheel__btn.has-sprite:disabled { opacity: 1; color: rgba(242, 242, 242, .45); }
-.ewheel__btn.is-cooling { cursor: wait; }
+.ewheel__btn.is-cooling { cursor: default; }
 .ewheel__label { white-space: nowrap; }
 
 /* ---- panel: one page per theme ----------------------------------------------------------------------------- */
@@ -84,7 +84,7 @@
 .ewheel__panel.has-cell .ewheel__item:hover:not(:disabled) { background-color: transparent; filter: brightness(1.35); }
 .ewheel__item:active:not(:disabled) { transform: scale(.9); }
 .ewheel__item:focus-visible { outline: 2px solid var(--mint-500); outline-offset: 1px; }
-.ewheel__item:disabled { opacity: .45; cursor: wait; }
+.ewheel__item:disabled { opacity: .45; cursor: default; }
 
 /* pager: ‹ dots › in the strip under the cells */
 .ewheel__dots { position: absolute; left: .15rem; width: 2.82rem; top: 1.99rem; height: .12rem; display: flex; align-items: center; justify-content: center; gap: .1rem; }