feat: update dependencies and enhance UI components

- Added new dependencies for drag-and-drop functionality with @dnd-kit packages.
- Updated package versions for @tanstack/react-virtual and date-fns.
- Refactored AppShell component to utilize AppSidebar and SiteHeader for improved layout.
- Enhanced Frame component with new theming capabilities and improved structure.
- Introduced filtering capabilities in Agents and Lists pages with new UI elements.
- Added new utility functions for authentication claims management.

Co-authored-by: Cursor <[email protected]>

apps/web/src/components/page-header.tsx

@@ -0,0 +1,22 @@
+import type { ReactNode } from 'react'
+
+interface PageHeaderProps {
+  title: string
+  description?: ReactNode
+  actions?: ReactNode
+}
+
+/** Page-level section header — etalon EvoBGP / Domains list. */
+export function PageHeader({ title, description, actions }: PageHeaderProps) {
+  return (
+    <div className="flex flex-col gap-2 md:flex-row md:items-center md:justify-between">
+      <div className="flex flex-col gap-px">
+        <h1 className="text-2xl font-semibold tracking-tight">{title}</h1>
+        {description ? (
+          <p className="text-muted-foreground text-sm">{description}</p>
+        ) : null}
+      </div>
+      {actions ? <div className="flex items-center gap-2">{actions}</div> : null}
+    </div>
+  )
+}