refactor(equalizer): co-locate equalizer UI into features/equalizer (eqStore/eqCurve stay audio-core)

src/components/PlayerBar.tsx

@@ -12,7 +12,7 @@ import { usePlayerStore } from '@/features/playback/store/playerStore';
 import { useShallow } from 'zustand/react/shallow';
 import { useAuthStore } from '../store/authStore';
 import { useThemeStore } from '../store/themeStore';
-import Equalizer from './Equalizer';
+import { Equalizer } from '@/features/equalizer';
 import { useTranslation } from 'react-i18next';
 import { usePlaybackLibraryNavigate } from '../hooks/usePlaybackLibraryNavigate';
 import { useRadioMetadata } from '@/features/radio';

src/features/equalizer/components/AutoEqSection.tsx

@@ -1,6 +1,6 @@
 import { useTranslation } from 'react-i18next';
 import { Search, X, ChevronDown, ChevronUp } from 'lucide-react';
-import { useAutoEq } from '../../hooks/useAutoEq';
+import { useAutoEq } from '@/features/equalizer/hooks/useAutoEq';
 
 /** Collapsible AutoEQ search panel inside the Equalizer. Owns its own search
  * state via {@link useAutoEq}. */

src/features/equalizer/components/Equalizer.test.tsx

@@ -1,8 +1,8 @@
 import { afterEach, beforeEach, describe, expect, it } from 'vitest';
 import { cleanup, screen } from '@testing-library/react';
-import { renderWithProviders } from '../test/helpers/renderWithProviders';
+import { renderWithProviders } from '@/test/helpers/renderWithProviders';
-import Equalizer from './Equalizer';
+import Equalizer from '@/features/equalizer/components/Equalizer';
-import { useEqStore } from '../store/eqStore';
+import { useEqStore } from '@/store/eqStore';
 
 const FLAT = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
 

src/features/equalizer/components/Equalizer.tsx

@@ -2,11 +2,11 @@ import { useState, useRef, useEffect, useCallback } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Save, Trash2, RotateCcw } from 'lucide-react';
 import CustomSelect from '@/ui/CustomSelect';
-import { useEqStore, EQ_BANDS, BUILTIN_PRESETS } from '../store/eqStore';
+import { useEqStore, EQ_BANDS, BUILTIN_PRESETS } from '@/store/eqStore';
-import { useThemeStore } from '../store/themeStore';
+import { useThemeStore } from '@/store/themeStore';
 import { drawCurve } from '@/features/playback/utils/audio/eqCurve';
-import VerticalFader from './equalizer/VerticalFader';
+import VerticalFader from '@/features/equalizer/components/VerticalFader';
-import AutoEqSection from './equalizer/AutoEqSection';
+import AutoEqSection from '@/features/equalizer/components/AutoEqSection';
 
 export default function Equalizer() {
   const { t } = useTranslation();

src/features/equalizer/hooks/useAutoEq.ts

@@ -1,7 +1,7 @@
 import { useState, useRef, useEffect } from 'react';
 import { useTranslation } from 'react-i18next';
 import { invoke } from '@tauri-apps/api/core';
-import { useEqStore } from '../store/eqStore';
+import { useEqStore } from '@/store/eqStore';
 import { parseFixedBandEqString, type AutoEqVariant, type AutoEqResult } from '@/features/playback/utils/audio/autoEqParse';
 
 /** AutoEQ search/apply state for the Equalizer. Loads the entries index lazily

src/features/equalizer/index.ts

@@ -0,0 +1,10 @@
+/**
+ * Equalizer feature — the graphic EQ panel (band faders, preset picker, EQ
+ * curve canvas) plus the auto-EQ section and its hook. Mounted from the
+ * settings audio tab and the player bar.
+ *
+ * Stays OUT (audio-core global state, consumed by the playback engine, not
+ * owned): `store/eqStore` (drives the audio graph; read by `eqDeviceSync` /
+ * `eqCurve` in the playback core) and the `eqCurve` renderer.
+ */
+export { default as Equalizer } from './components/Equalizer';

src/features/settings/components/AudioTab.tsx

@@ -2,7 +2,7 @@ import { useMemo } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Blend, Gauge, Sliders, Volume2, Waves } from 'lucide-react';
 import { useAuthStore } from '@/store/authStore';
-import Equalizer from '@/components/Equalizer';
+import { Equalizer } from '@/features/equalizer';
 import SettingsSubSection from '@/features/settings/components/SettingsSubSection';
 import { SettingsGroup } from '@/features/settings/components/SettingsGroup';
 import { SettingsToggle } from '@/features/settings/components/SettingsToggle';