feat(v2): remove old dashboard, add vitae + resizable windows

- Removed old Recharts dashboard view entirely (no more viewMode
  toggle, DashboardView lazy import, Ctrl+D shortcut)
- Recharts chunk eliminated from build — bundle size reduced
- Player Dashboard window: added Vitae column (red when > 0%)
- ALL windows now resizable: drag bottom-right corner handle
  (min 300×200px). Subtle diagonal line grip indicator.
- Sidebar: removed 📊 Dashboard toggle link, removed broken
  /quest-status.html external link (replaced by 📜 Quests window)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/App.tsx

@@ -1,45 +1,10 @@
-import { useState, lazy, Suspense, useEffect } from 'react';
+import { useEffect } from 'react';
 import { MapLayout } from './components/map/MapLayout';
 import { useLiveData } from './hooks/useLiveData';
 import './styles/global.css';
 import './styles/map-layout.css';
 
-// Lazy-load dashboard view (contains Recharts ~400KB) — only loaded when user switches to dashboard
-const DashboardView = lazy(() => import('./DashboardView'));
-
-type ViewMode = 'map' | 'dashboard';
-
 export default function App() {
-  const [viewMode, setViewMode] = useState<ViewMode>(
-    () => (localStorage.getItem('v2-view') as ViewMode) || 'map'
-  );
   const data = useLiveData();
-
-  // Ctrl+D toggles map/dashboard
-  useEffect(() => {
-    const handler = (e: KeyboardEvent) => {
-      if (e.ctrlKey && e.key === 'd') {
-        e.preventDefault();
-        toggleView();
-      }
-    };
-    window.addEventListener('keydown', handler);
-    return () => window.removeEventListener('keydown', handler);
-  });
-
-  const toggleView = () => {
-    const next = viewMode === 'map' ? 'dashboard' : 'map';
-    setViewMode(next);
-    localStorage.setItem('v2-view', next);
-  };
-
-  if (viewMode === 'map') {
-    return <MapLayout data={data} onViewToggle={toggleView} />;
-  }
-
-  return (
-    <Suspense fallback={<div style={{ background: '#0d0d0d', color: '#888', padding: 40, textAlign: 'center' }}>Loading dashboard...</div>}>
-      <DashboardView data={data} onViewToggle={toggleView} />
-    </Suspense>
-  );
+  return <MapLayout data={data} />;
 }