Astro Dashboard Shell & Admin Pages

What’s New

• Added /admin overview page with KPI cards, activity log, and charts
• Added /admin/users with full CRUD, filters, pagination, and distribution charts
• Added endpoint detail playground with HUD header and two-column layout
• Added status pages (400, 404, 500) with consistent visual language

Improvements

• Refined topbar and sidebar spacing, responsive behavior, and z-index layering
• Mobile sidebar now renders as full-width sheet for better visual cohesion
• Sidebar collapsed state properly hides brand text to prevent overflow
• Dashboard shell uses fixed viewport height with internal scroll container
• Settings loading skeleton redesigned to match actual page structure
• Sidebar width tokens updated for Tailwind v4 compatibility

Fixes

• Fixed dashboard content overlapping under sidebar due to width token syntax
• Fixed non-scrollable dashboard from shell height constraints
• Fixed hydration mismatch in navbar breadcrumb with deterministic initial state
• Fixed /admin QueryClient crash by wrapping islands with local provider