feat(ui): Midnight Glass v2 마감 — lucide 아이콘 통일 + 몰입 패널 웨이브 + 팝업 정합

- @mui/icons-material → lucide-react 전환 (23파일, 잔여 0)
- VoiceRecordingPanel: 9바 DOM 웨이브 → GradientWave (canvas)
- Vanilla 팝업 5종 style.css v2 정합 (글래스 네이비/헤어라인/블루,
  CSS 변수 주입 구조 유지 — 테마 반응형 보존)

apps/desktop/src/renderer/components/LicenseModal.tsx

@@ -10,9 +10,7 @@ import {
   Divider,
   LinearProgress,
 } from '@mui/material'
-import CloseIcon from '@mui/icons-material/Close'
-import CheckCircleIcon from '@mui/icons-material/CheckCircle'
-import CancelIcon from '@mui/icons-material/Cancel'
+import { X, CircleCheck, XCircle } from 'lucide-react'
 import { MetalCard, PhosphorText, Led, PhysicalButton } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roTypo, d3roRadius, d3roShadow, d3roFontMono } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
@@ -61,7 +59,7 @@ export function LicenseModal({ open, onClose }: LicenseModalProps): React.ReactE
       >
         <PhosphorText variant="meta">{t('license.title')}</PhosphorText>
         <IconButton size="small" onClick={onClose} sx={{ color: d3roPalette.text.inactive }}>
-          <CloseIcon sx={{ fontSize: 18 }} />
+          <X size={18} />
         </IconButton>
       </DialogTitle>
 
@@ -325,10 +323,10 @@ function UpgradeButton({ tier, t, onUpgrade }: { tier: 'pro' | 'pro_plus'; t: (k
 
 function TierCell({ value }: { value: boolean | string }): React.ReactElement {
   if (value === true) {
-    return <CheckCircleIcon sx={{ fontSize: 14, color: d3roPalette.tag.green }} />
+    return <CircleCheck size={14} style={{ color: d3roPalette.tag.green }} />
   }
   if (value === false) {
-    return <CancelIcon sx={{ fontSize: 14, color: d3roPalette.text.disabled }} />
+    return <XCircle size={14} style={{ color: d3roPalette.text.disabled }} />
   }
   return (
     <PhosphorText variant="dim" sx={{ fontSize: d3roTypo.small.size, color: d3roPalette.accent.amber }}>