feedback7: merge fb7-voices — the 选中干员 line on every tap (prep / shop / hand, official FOCUS_CHAR: priority 10, cooldown 0, no gap restart), the Japanese voice tree (audio.voiceJp, 2674 files, setting 语音语言 中文 / 日本語, CN fallback), the full zip ships both

- Conflict: public/js/ui/settings.js imports (store from #321 + VOICE_LANGS) — both kept. test/ui/playtest6-elite.test.js's
  source pin of the onDetail line allows the new tap counter (bcee737f).
- Grok review: MERGE AFTER FIXES — the three findings fixed on the branch (bcee737f). Golden unchanged; broad node --test
  5334 (the one failure was that source pin, fixed), i18n strict clean, lint 0 errors, typecheck.

public/js/ui/gameLogic/settings.js

@@ -6,14 +6,20 @@ import { DEFAULT_HOTKEYS, sanitizeHotkeys } from './shortcuts.js';
 
 // ---- settings ------------------------------------------------------------------------------------------------------
 
-/** keys: the in-match shortcuts' key map (ui/gameLogic/shortcuts.js; settings → 快捷键). */
-export const DEFAULT_SETTINGS = Object.freeze({ bgm: 0.6, sfx: 0.8, voice: 0.8, muted: false, damageNumbers: true, quality: 'high', keys: DEFAULT_HOTKEYS });
+/**
+ * The operator voice dubs (settings 语音语言): 'cn' 中文 (`audio.voice`, the default) and 'jp' 日本語 (`audio.voiceJp`,
+ * falling back to the Chinese line it lacks — public/js/audio.js voiceLine). Not tied to the interface language.
+ */
+export const VOICE_LANGS = Object.freeze(['cn', 'jp']);
+
+/** keys: the in-match shortcuts' key map (ui/gameLogic/shortcuts.js; settings → 快捷键). voiceLang: VOICE_LANGS. */
+export const DEFAULT_SETTINGS = Object.freeze({ bgm: 0.6, sfx: 0.8, voice: 0.8, voiceLang: 'cn', muted: false, damageNumbers: true, quality: 'high', keys: DEFAULT_HOTKEYS });
 const QUALITIES = ['high', 'medium', 'low'];
 
 /**
  * Sanitize persisted settings.
  * @param {any} raw
- * @returns {{ bgm: number, sfx: number, voice: number, muted: boolean, damageNumbers: boolean, quality: 'high'|'medium'|'low',
+ * @returns {{ bgm: number, sfx: number, voice: number, voiceLang: 'cn'|'jp', muted: boolean, damageNumbers: boolean, quality: 'high'|'medium'|'low',
  *   keys: Record<'refresh'|'freeze'|'levelUp'|'retreat'|'sell'|'ready', string> }}
  */
 export function sanitizeSettings(raw) {
@@ -23,6 +29,7 @@ export function sanitizeSettings(raw) {
     bgm: vol(r.bgm, DEFAULT_SETTINGS.bgm),
     sfx: vol(r.sfx, DEFAULT_SETTINGS.sfx),
     voice: vol(r.voice, DEFAULT_SETTINGS.voice),
+    voiceLang: VOICE_LANGS.includes(r.voiceLang) ? r.voiceLang : DEFAULT_SETTINGS.voiceLang,
     muted: typeof r.muted === 'boolean' ? r.muted : DEFAULT_SETTINGS.muted,
     damageNumbers: typeof r.damageNumbers === 'boolean' ? r.damageNumbers : DEFAULT_SETTINGS.damageNumbers,
     quality: QUALITIES.includes(r.quality) ? r.quality : DEFAULT_SETTINGS.quality,