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.

public/js/ui/lang.js

@@ -23,6 +23,7 @@ import { PACKS_URL, PACK_INDEX_FILE, readPackIndex, langMetaOf } from '../../../
 import { DEV_BUILD } from '../../../shared/constants.js';
 import { loadPref, savePref } from '../store.js';
 import { data } from '../data.js';
+import { updateRotateHintPwaI18n } from './device.js';
 import { html } from './components.js';
 
 /** The switch's own label, in both languages (whoever opens it may not read the current one). */
@@ -160,6 +161,7 @@ function applyDocument(lang) {
   doc.documentElement.dataset.lang = lang;
   doc.documentElement.dataset.script = scriptOf(t('卫戍协议'));
   doc.title = t('卫戍协议：盟约 · STRONGHOLD PROTOCOL');
+  updateRotateHintPwaI18n(doc);
 }
 
 // `{ dn }` params and tName(): Chinese game-data names → the current language (data/i18n/<lang>.json names)