0.2.3: prepare follow-up fixes and client features (#407, #408, #410, #413, #431, #435, #436, #440, #444)

Add special-target activation without bypassing attack cadence, cooperative
card preferences and emotes, skill sound banks, per-operator voice choices,
text sizing, install prompts, closed-tab recovery and unanimous setup rerolls.
Retain late deployment elapsed time and resolve echo/counter pulses without
recursive hook overflow. Independent final review remains pending.

Golden: roster-016, roster-035, roster-036, roster-045;
boss-boss_1-pair, boss-boss_3-pair, boss-boss_5-pair, boss-boss_7-pair,
hidden-boss_9-pair; solo-HARD-9-boosted: Lemuen attack cadence.
diy-132: Necras extra activation targets.
coop2-NORMAL-14-standins: cooperative purchase preference and simulation fixes.
hidden-boss_10-solo: echo pulse FIFO resolution.
See DESIGN 28.13-28.24 for assumptions, sources and contributor credit.

test/content/necras-trigger-023.test.js

@@ -0,0 +1,44 @@
+// #440: special targeting supplies the DEFAULT attack opportunity, without extending S2 links.
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { makeBattle, enemyRec, checkInvariants } from '../helpers/battleHarness.js';
+import { COLS } from '../../server/sim/constants.js';
+
+function field(skillIndex, kind = 'unite') {
+  const h = makeBattle({ kind, timeLimit: 90, autoFinish: false, seed: 5,
+    flags: { dpPerSec: 0, dpMax: 999 }, hooks: ['skillStart', 'damaged'], captureNoisy: true,
+    defs: { enemies: { weak: enemyRec({ key: 'weak', hp: 100, speed: 0, mass: 0 }),
+      walker: enemyRec({ key: 'walker', hp: 1e9, speed: 0.5, mass: 0 }) } },
+    units: [{ uid: 1, elite: true, row: 10, col: 3,
+      diy: { slot: 'chess_char_6_diy1_a', charId: 'char_450_necras', skillIndex, uniEquipId: null } }],
+  });
+  h.step();
+  const u = h.unit(1);u.skill.sp = 0;
+  const weak = h.spawn('weak', { pos: [10, 6] });h.step();h.b.kill(weak, null);h.run(0.2);
+  const summon = u.mem.necras.skels.find((s) => s.alive);assert.ok(summon);
+  const e = h.spawn('walker', { pos: [10, 9] });
+  assert.ok(h.runUntil(() => e.blockedBy === summon, 20));h.step(3);
+  const key = Math.round(e.y) * COLS + Math.round(e.x);
+  assert.ok(!u.baseRangeKeys.includes(key) && u.extraRangeKeys.includes(key));
+  return { h, u, e, summon };
+}
+function done(h) { checkInvariants(h.b);assert.deepEqual(h.b.errors, []); }
+for (const kind of ['normal', 'unite']) for (const skillIndex of [0, 1]) {
+  test(`Necras S${skillIndex + 1} starts on its next attack against a summon-blocked remote target (${kind})`, () => {
+    const { h, u, e } = field(skillIndex, kind);
+    u.skill.gainSp(999);u.atkCd = 0.7;
+    h.run(0.3);assert.equal(u.skill.activations, 0, 'retain attack cadence');
+    h.run(0.6);assert.equal(u.skill.activations, 1);
+    if (skillIndex === 1) assert.ok(!u.mem.necrasLinks?.some((l) => l.e === e), 'remote trigger does not extend S2 effect range');
+    done(h);
+  });
+}
+test('remote Necras trigger needs a selectable enemy and the owning summon', () => {
+  const { h, u, e, summon } = field(1);
+  e.base.moveSpeed = 0;e.markDirty();
+  h.b.applyStatus(e, 'sleep', { duration: 5 });u.skill.gainSp(999);u.atkCd = 0;
+  h.run(1);assert.equal(u.skill.activations, 0, 'sleep cannot open DEFAULT');
+  h.b.retreat(summon, { reason: 'test' });
+  h.run(5);assert.equal(u.skill.activations, 0, 'expired block does not retain an extra trigger');
+  done(h);
+});