chore(redesign): 재설계가 죽인 다크/스크롤큐 CSS 제거 + 연결선 gradient 제거

globals.css: --jsm-dark-* 토큰, --jsm-accent-bright, .jsm-dark-form,
.df-scroll-dot/@keyframes df-scroll-cue 제거 (전부 소비처 0).
홈 PROCESS 연결선 linear-gradient → solid 인셋 라인.

유지: --kx-*/.kx-*(/, packages·work·music 사용), .gradient-text(/portfolio/[token] 사용)
— 숨김·레거시 라우트라 이번 범위 밖.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A2N6SziVSPfavx1j5rAs52

app/page.tsx

@@ -402,11 +402,8 @@ export default async function Home() {
             {/* 단계 연결선 (데스크톱) */}
             <span
               aria-hidden
-              className="absolute left-0 right-0 top-7 hidden h-px lg:block"
-              style={{
-                background:
-                  'linear-gradient(to right, transparent, var(--jsm-line) 12%, var(--jsm-line) 88%, transparent)',
-              }}
+              className="absolute left-[12%] right-[12%] top-7 hidden h-px lg:block"
+              style={{ background: 'var(--jsm-line)' }}
             />
             <div className="grid gap-6 sm:grid-cols-2 lg:grid-cols-4">
               {PROCESS.map((s, i) => (