Deploy-timed skills run the normal duration lifecycle: one charge on deployment, a duration bar, a real end, again on the next deployment (#109)

宴 S2, 斯卡蒂 S2, 野鬃 S1, 砾 S1 / S2, 伊内丝 S3, 缄默德克萨斯 S1–S3 and 耀骑士临光 S2 used a separate timed buff while the skill stayed active; equipment and bond effects that read the skill state now see it end. 伊内丝's first sentry placement starts no skill. Contributed by @Sukvii.

test/content/kits_t1t2.test.js

@@ -942,6 +942,10 @@ test('2_12 砾: 鼠群 barrier hp_ratio × max HP decaying over `duration` s;
   assert.equal(u.base.cost, raw(id).stats.cost + t.cost);
   h.step();
   const full = u.s.maxHp * bb.hp_ratio;
+  assert.equal(u.skill.kind, 'duration');
+  assert.equal(u.skill.active, true);
+  assert.equal(u.skill.ready, false);
+  assert.deepEqual(h.snapshot().units.find((t) => t[0] === u.id).slice(5, 7), [Math.round(u.skill.timeLeft * 10) / 10, bb.duration]);
   approx(u.s.shield, full, 'full barrier', 1e-2);
   h.run(bb.duration / 2 + 0.5);
   approx(u.s.shield, full / 2, 'half decayed', 1e-2);
@@ -949,6 +953,9 @@ test('2_12 砾: 鼠群 barrier hp_ratio × max HP decaying over `duration` s;
   approx(u.s.shield, full / 2, 'PRTS: the capacity steps once per second', 1e-2);
   h.run(bb.duration / 2);
   assert.equal(u.s.shield, 0);
+  assert.equal(u.skill.active, false);
+  assert.equal(u.skill.ready, false);
+  assert.equal(u.findBuff('gravel:rats'), null);
   done(h);
   // PRTS "受到伤害后，剩余容量根据屏障最大容量等比变化": a damaged barrier shrinks in proportion, not to the capacity
   const hd = run({ units: [{ chessId: id, row: 9, col: 5 }] });
@@ -960,6 +967,12 @@ test('2_12 砾: 鼠群 barrier hp_ratio × max HP decaying over `duration` s;
   hd.run(bb.duration / 2 + 0.5);
   approx(ud.s.shield, cap0 * 0.4 / 2, 'remaining × capacity ratio (a plain cap would keep 40 %)', 1e-2);
   assert.ok(ud.hp === ud.s.maxHp);
+  hd.b.retreat(ud);
+  assert.equal(ud.findBuff('gravel:rats'), null);
+  assert.equal(ud.skill.active, false);
+  assert.ok(hd.b.redeploy(ud, { free: true }));
+  approx(ud.skill.timeLeft, bb.duration);
+  approx(ud.s.shield, cap0, 'fresh shield on redeployment');
   done(hd);
   const idb = 'chess_char_2_12_b', tb = tal(idb);
   const cheapRec = chessRec({ id: 't_cheap', stats: { cost: tb['cond.cost'] } });