feat: pixel-perfect rewrite — Login/Sidebar/Header/Dashboard/Gateway
- Login: 400px card with 24px radius, white 28px logo, password eye toggle,
42px inputs, 48px honey button, placeholder var(--text-muted)
- Sidebar: NEW badges golden, count badges red, hover bg-hover, active honey-glow
- Header: search with search icon, status dots, inline hover dropdown
- Dashboard: 4-column stat grid, horizontal stacked health bar (8px height),
48-bar gateway trend (no dupes), tables with height 44px and padding 10px 14px
- Gateway: "Gateway 健康监控" title, stat summary, honey filter buttons,
honey-outline action buttons, search + type filter, last-update timestamp
All colors from var(--*), spacing in 4px multiples, animations ≤300ms,
table rows 44px, shadows only 3 layers.
Co-Authored-By: Claude <noreply@anthropic.com>
