feat(ui): Midnight Glass v2 전면 리디자인 — 기반+셸+대시보드

- theme.ts 재작성: glass/gradient/glow 토큰군, 기본 dark=Midnight(블루),
  6종 테마 변형 전부 파생 토큰 유지 (테마 시스템 보존)
- DS 리스킨(API 호환): 글래스 카드/버튼, Pretendard 타이포, 소프트 LED
- 신규: GradientWave(canvas 스펙트럼 음파), StatRing(컬러 링 타일)
- 보더리스: frame:false + 커스텀 TitleBar, 네이티브 스크롤바 제거(폭 불변)
  + OverlayScrollbars 오버레이 스크롤
- AppLayout 와이드 사이드바(lucide, 그라디언트 액티브 필), 대시보드 재구축,
  StatusBar(브랜드/로컬시간), Pretendard 번들, i18n +20키(ko/en)

packages/i18n/src/locales/en.json

@@ -33,6 +33,24 @@
   "dashboard.noHistory": "No history — press your hotkey to start recording",
   "dashboard.copy": "Copy",
   "dashboard.entries": "{{count}} entries",
+  "dashboard.heroIdle": "Ready for voice recognition",
+  "dashboard.viewStats": "View Stats",
+  "dashboard.systemSettings": "System Settings",
+  "dashboard.keySetup": "Key Setup",
+  "dashboard.systemOk": "System OK",
+  "dashboard.systemIssue": "Needs Attention",
+  "dashboard.captionPlaceholder": "Recognized text will appear here in real time.",
+  "dashboard.captionStandby": "Standby",
+  "dashboard.inputLevel": "Input Level",
+  "dashboard.recordingTime": "Recording Time",
+  "dashboard.recognizedWords": "Words Recognized",
+  "dashboard.streakUse": "Streak",
+  "dashboard.modelLabel": "Model",
+  "dashboard.statusLabel": "Status",
+  "dashboard.localConnected": "Local",
+  "dashboard.planFree": "Free Plan",
+  "dashboard.planFeatureLocal": "Unlimited local backend",
+  "dashboard.planFeatureDaily": "Unlimited daily transcription",
   "dashboard.stat": "Stats",
   "dashboard.sys": "System",
   "dashboard.currentBackend": "Current Backend",
@@ -155,6 +173,7 @@
   "settings.about.voiceEngineValue": "STT: faster-whisper (local) / LLM: Ollama (local)",
   "settings.about.description": "A fully local AI voice assistant built on Speakly reverse-engineering insights. Runs entirely offline with no cloud dependencies.",
   "settings.about.restartOnboarding": "Restart Setup Wizard",
+  "status.localTime": "Local Time",
   "status.ollama": "OLLAMA",
   "status.offline": "OFFLINE",
   "status.nudge.title": "Ollama is not running",