feat(eq): remember EQ profile per audio output device (#1146)

* feat(eq): add per-device EQ snapshot state to eqStore

* feat(eq): wire per-device EQ sync into audio listener setup

* feat(settings): add 'remember EQ per device' toggle to audio output section

* i18n(settings): add 'remember EQ per device' strings (10 locales)

* test(eq): cover per-device EQ snapshot store + device sync orchestration

* docs(changelog): per-device EQ entry, credit and what's new (#1146)

* i18n(settings): note per-device EQ scope (system default + explicit switch) in toggle description

* test(eq): cover system-default bucket and device-reset (null) path

src/config/settingsCredits.ts

@@ -379,6 +379,7 @@ const CONTRIBUTOR_ENTRIES = [
       'AutoDJ as a standalone playback mode — own toolbar button and audio-settings entry, mutually exclusive with Crossfade and Gapless via a shared transition helper, combined playlist save/load submenu, and boxed playback settings sections (PR #1124)',
       'Settings refactor — reusable boxed panels (SettingsGroup/SettingsToggle) rolled across every tab, Normalization and Track transitions promoted to their own Audio categories, a unified Queue Settings group on Personalisation, and the Audio Output Device category gated out on macOS (PR #1126, #1130)',
       'Artist artwork from fanart.tv — opt-in fullscreen background + artist-header banner, off by default (PR #1137)',
+      'Per-device equalizer profiles — opt-in, remembers and restores the EQ for each audio output device (PR #1146)',
     ],
   },
   {