feedback1d WN: 暴鸰 hovers through its cast and speeds up when it ends; 掠海漂移体's crawl in UnitInfo.form

- Official Boomb ability: the cast finishes once the bomb has landed and at
  least 0.667 s after the release (_fireAttackFinishWhenProjectileInvalid,
  _minPostDelayWhenProjectileInvalid), then buff bomb_s gives the speed
  (PRTS "技能结束后移速最终提升至200%"). kitBombd: BOMBD_POST_DELAY; the speed-up
  at the cast end instead of the landing; the drone holds still until then,
  like the engine's pause for an enemy attack clip.
- The bomb-less look still starts at the release: the view begins the *_2
  clips after the Attack clip (the official end clip Idle_2); at the cast end
  it would draw the bomb back for a frame.
- kitSyufo records e.form = 'crawl', so a field opened later draws it crawling.

test/content/enemies_bosses.test.js

@@ -719,12 +719,13 @@ test(`${nm('enemy_1042_frostd')}: operators within ${tb('enemy_1042_frostd', 'de
 
 test(`${nm('enemy_1040_bombd')}: no normal attack; ONE bomb on the target + its 8 tiles, then move speed ×${skb('enemy_1040_bombd', 'boomb').bb.move_speed}`, () => {
   // PRTS 暴鸰: "不进行普通攻击" · 投弹 "对目标及其周围八格的我方单位造成100%物理伤害 … 技能结束后移速最终提升至200% ※此技能仅能触发一次"
-  // (the bomb leaves on the Attack clip's OnAttack and flies 1 tile at 5 tiles/s — feedback D4, test/sim/feedback1d-bombd)
+  // (the bomb leaves on the Attack clip's OnAttack and flies 1 tile at 5 tiles/s; the speed-up when the cast ends —
+  // feedback D4, test/sim/feedback1d-bombd)
   const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 5 }, { chessId: 't_wall2', row: 10, col: 6 }, { chessId: 't_wall3', row: 12, col: 6 }] });
   h.step();
   const e = put(h, 'enemy_1040_bombd', [10, 7], { route: 2 });
   const s = skb('enemy_1040_bombd', 'boomb');
-  h.run(s.initCooldown + enemiesMod.BOMBD_RELEASE + 1 / 5 + 0.1);
+  h.run(s.initCooldown + enemiesMod.BOMBD_RELEASE + enemiesMod.BOMBD_POST_DELAY + 0.1);
   const [w1, w2, w3] = ['t_wall', 't_wall2', 't_wall3'].map((id) => h.unit(id));
   approx(w2.stats.taken, e.s.atk, 1e-6, 'the target (latest deployed in range): 100 % ATK');
   approx(w1.stats.taken, e.s.atk, 1e-6, 'a tile next to it: splash 100 %');