灵巧's knocked-out aura counts only knocked-out operators; hidden-layer bonds hide their layers in the UI only (#66)

A knocked-out 灵巧 operator gives its neighbours the aura once more; a player retreat, a merchant exit or a 联防 forced exit no longer counts, and a redeploy restores it. 调和, 协防干员, 独行 and 绝技 hide their layer counts in the UI while the real layers stay for saving, settlement and support ranking. Contributed by @sunstricken.

test/sim/raid-terrain.test.js

@@ -0,0 +1,65 @@
+// Regression checks for 突袭 landing terrain, using the shared server/browser simulation.
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { makeBattle, flatStage, chessRec, enemyRec, checkInvariants } from '../helpers/battleHarness.js';
+import { inRange } from '../../server/sim/content/support/index.js';
+
+const HOME = [12, 3];
+const ENEMY = [10, 8];
+const BONDS = { raidShip: { count: 2, active: true, tier: 1, layers: 0 } };
+
+function scenario(ready, noLanding = false) {
+  const stage = flatStage();
+  const put = (r, c, glyph) => { stage.rows[r] = stage.rows[r].slice(0, c) + glyph + stage.rows[r].slice(c + 1); };
+  // Every tile in the landing search area is high ground or water except the one dry shore tile.
+  for (let r = 9; r <= 12; r++) for (let c = 6; c <= 10; c++) put(r, c, 'h');
+  put(...ENEMY, 'd');
+  put(10, 9, 'r'); // A shooting platform: low ground in the legend, but unavailable to melee.
+  if (!noLanding) put(9, 8, 'r');
+  const h = makeBattle({
+    stage, bonds: BONDS,
+    defs: {
+      chess: { raider: chessRec({
+        id: 'raider', profession: 'WARRIOR', position: 'MELEE', bonds: ['raidShip'],
+        rangeGrid: [[0, 0], [0, 1], [1, 0], [0, -1], [-1, 0]],
+        skill: ready ? { spCost: 10, initSp: 10 } : null,
+      }) },
+      enemies: { enemy_wader: enemyRec({ key: 'enemy_wader', hp: 1e7, speed: 0 }) },
+    },
+    units: [{ chessId: 'raider', row: HOME[0], col: HOME[1] }],
+    enemies: [{ key: 'enemy_wader', pos: ENEMY }],
+    setup(b) { b.setObstacle(10, 9, true); },
+  });
+  h.step();
+  assert.equal(h.unit('raider').alive, true);
+  assert.equal(h.b.grid.canStand(10, 7), false, 'high ground is not a melee landing tile');
+  assert.equal(h.b.grid.canStand(...ENEMY), false, 'water is not a landing tile');
+  assert.equal(h.b.grid.canStand(10, 9), false, 'shooting platform is not a melee landing tile');
+  return h;
+}
+
+for (const ready of [false, true]) {
+  const trigger = ready ? 'skill ready' : 'idle for 10 seconds';
+  test(`突袭 (${trigger}): skips high ground, water and shooting platforms, landing on dry ground`, () => {
+    const h = scenario(ready);
+    const u = h.unit('raider');
+    h.run(ready ? 0.6 : 11);
+    assert.deepEqual([u.tileR, u.tileC], [9, 8], 'the only legal shore tile');
+    assert.ok(u.alive && u.deployed && u.ground);
+    assert.ok(inRange(u, h.enemy('enemy_wader')), 'the enemy is in range after the jump');
+    const landings = h.hooksOf('deploy').filter((c) => c.unit === u && !c.initial);
+    assert.equal(landings.length, 1, 'one successful raid redeployment');
+    checkInvariants(h.b);
+  });
+
+  test(`突袭 (${trigger}): stays deployed when only high ground, water and platforms surround the enemy`, () => {
+    const h = scenario(ready, true);
+    const u = h.unit('raider');
+    h.run(12);
+    assert.deepEqual([u.tileR, u.tileC], HOME);
+    assert.ok(u.alive && u.deployed, 'no withdrawal without a valid landing');
+    assert.equal(h.hooksOf('death').filter((c) => c.unit === u).length, 0);
+    assert.equal(h.hooksOf('deploy').filter((c) => c.unit === u && !c.initial).length, 0);
+    checkInvariants(h.b);
+  });
+}