frontend 속도 개선

frontend/src/components/AppPopup.tsx

@@ -2,6 +2,7 @@
  * AppPopup — TradeAlertModal(tam-) 기준 공통 팝업 셸
  * 신규 팝업은 이 컴포넌트를 사용하세요.
  */
+import '../styles/appPopup.css';
 import React from 'react';
 import { createPortal } from 'react-dom';
 import { useDraggablePanel } from '../hooks/useDraggablePanel';

frontend/src/components/BacktestHistoryPage.tsx

@@ -1,6 +1,7 @@
 /**
  * BacktestHistoryPage — Golden Analysis Command Center (참조 UI 3열)
  */
+import '../styles/backtestDashboard.css';
 import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import {
   loadBacktestResults,

frontend/src/components/PaperTradingPage.tsx

@@ -1,6 +1,7 @@
 /**
  * 모의투자 대시보드 — 가상매매와 동일 3열 레이아웃(좌·중앙·우 접기/리사이즈)
  */
+import '../styles/paperDashboard.css';
 import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import {
   loadPaperSummary,

frontend/src/components/TopMenuBar.tsx

@@ -250,6 +250,7 @@ export const TopMenuBar = memo(function TopMenuBar({
               type="button"
               className={`tmb-nav-btn ${activePage === page ? 'tmb-nav-btn--active' : ''}`}
               onClick={() => onPage(page)}
+              onMouseEnter={page === 'chart' ? () => { void import('../chart/ChartWorkspaceRoot'); } : undefined}
             >
               <span className="tmb-nav-icon">{icon}</span>
               <span className="tmb-nav-label">{label}</span>