Add LynkedUp Pro dashboard (dark + light) from Figma

- Full dashboard at /dashboard matching the Figma Linkedup-Web frame
- Dark/light theme toggle (persisted to localStorage)
- Live animated charts: stat sparkbars, P&L grouped bars, donut, gauge,
  pipeline bars, progress, revenue-potential
- Sidebar, topbar, stat cards, weather, top sales reps
- 29 icons exported from Figma (currentColor) + lucide fallbacks
- Fix: bar charts had zero height (percentage in indefinite flex parent)
- Fix: removed content max-width that left a right-side gap

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

public/icons/procanvas.svg

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