Phase 7~8 구현: 테스트 + 빌드 + CI/CD + SoundEffect + AutoLaunch + UI 리디자인

- vitest 41개 단위 테스트 (HistoryService, DictionaryService, CustomInstructionService, VoiceModeService, D3ROError)
- electron-builder.yml (NSIS, asarUnpack, extraResources)
- .gitlab-ci.yml (lint, typecheck, test, build, release)
- SoundEffectService: WAV 프리로드 + PowerShell 재생 + VoiceMode 연동
- AutoLaunchService: app.setLoginItemSettings + ConfigService 동기화
- TextInsertService: 간이 삽입 검증 (EditMonitor 경량)
- 번들링 인프라: SoX 다운로드 스크립트, PyInstaller 빌드, 경로 해상도 유틸
- AudioCaptureService/LocalSTTService: 번들 경로 자동 감지
- 08-design-system.md 기반 MUI 테마 (다크+라이트+auto 테마 시스템)
- 전체 UI 컴포넌트 리디자인: AppLayout, Dashboard, StatusBar, History, Dictionary, Commands, Settings
- 효과음 WAV 생성: recording-start, recording-stop, error
- EPIPE 에러 핸들링 추가

src/renderer/components/SettingsModal.tsx

@@ -21,6 +21,7 @@ import {
   FormControl
 } from '@mui/material'
 import CloseIcon from '@mui/icons-material/Close'
+import { d3roPalette } from '../theme'
 import type { ThemeMode, AppConfig } from '@shared/types'
 
 interface SettingsModalProps {
@@ -66,13 +67,13 @@ export function SettingsModal({ open, onClose }: SettingsModalProps): React.Reac
 
   return (
     <Dialog open={open} onClose={onClose} fullWidth maxWidth="sm">
-      <DialogTitle sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+      <DialogTitle sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', fontWeight: 700 }}>
         Settings
-        <IconButton onClick={onClose} size="small">
+        <IconButton onClick={onClose} size="small" sx={{ color: d3roPalette.text.label }}>
           <CloseIcon />
         </IconButton>
       </DialogTitle>
-      <Divider />
+      <Divider sx={{ borderColor: d3roPalette.border.subtle }} />
       <DialogContent>
         <Tabs value={activeTab} onChange={(_, v) => setActiveTab(v)}>
           <Tab label="General" />