refactor(ui): 팝업 테마 SSOT 정합 + DS 데드코드 3종 제거 (WS1)

- theme-vars.ts dark/light POPUP_THEME_VARS를 theme.ts RAW와 값 정합:
  v1 잔존 주황(#f25b29) -> 파랑(dark #3b82f6 / light #2563eb),
  --d3-bg-card, --d3-text-dimLabel 동기화. 팝업=렌더러 색상 충돌 해소.
- DS 미사용 3종 제거: MetalDial, ButtonGroup, CrtDisplay + barrel export
  (렌더러 전체 import 0건 재검증)
- StatRing RING_COLORS hex 10종 -> d3roPalette.gradient.wave/tag 토큰
  (다크 고정 -> 테마 전환 대응)
SKIP: theme-vars 평행 SSOT 구조 단일화, theme.ts amber 별칭 제거
  (web/admin/site가 accent.amber 사용 -> 전체 치환 별도 wave)
정책: docs/REFACTOR_POLICY.md DP1, DP9

packages/ui/src/components/ds/StatRing.tsx

@@ -9,11 +9,11 @@ import { d3roPalette } from '../../theme'
 type RingColor = 'blue' | 'purple' | 'green' | 'orange' | 'red' | 'accent'
 
 const RING_COLORS: Record<RingColor, { from: string; to: string; glow: string; icon: string }> = {
-  blue:   { from: '#22d3ee', to: '#3b82f6', glow: 'rgba(59,130,246,0.35)', icon: d3roPalette.tag.blue },
-  purple: { from: '#8b5cf6', to: '#d946ef', glow: 'rgba(167,139,250,0.35)', icon: d3roPalette.tag.purple },
-  green:  { from: '#34d399', to: '#10b981', glow: 'rgba(52,211,153,0.35)', icon: d3roPalette.tag.green },
-  orange: { from: '#fbbf24', to: '#f97316', glow: 'rgba(251,146,60,0.35)', icon: d3roPalette.tag.orange },
-  red:    { from: '#f87171', to: '#ef4444', glow: 'rgba(248,113,113,0.35)', icon: d3roPalette.tag.red },
+  blue:   { from: 'var(--d3-gradient-wave1)', to: 'var(--d3-gradient-wave2)', glow: d3roPalette.tag.blueBg, icon: d3roPalette.tag.blue },
+  purple: { from: 'var(--d3-gradient-wave3)', to: 'var(--d3-gradient-wave4)', glow: d3roPalette.tag.purpleBg, icon: d3roPalette.tag.purple },
+  green:  { from: d3roPalette.tag.green, to: d3roPalette.tag.green, glow: d3roPalette.tag.greenGlow, icon: d3roPalette.tag.green },
+  orange: { from: d3roPalette.tag.orange, to: d3roPalette.tag.orange, glow: d3roPalette.tag.orangeGlow, icon: d3roPalette.tag.orange },
+  red:    { from: d3roPalette.tag.red, to: d3roPalette.tag.red, glow: d3roPalette.tag.redGlow, icon: d3roPalette.tag.red },
   accent: { from: 'var(--d3-accent-light)', to: 'var(--d3-accent-dark)', glow: 'var(--d3-accent-dim)', icon: d3roPalette.accent.light },
 }