chore: reorganize project structure and ensure default queues

src/components/site-header.tsx

@@ -0,0 +1,56 @@
+import type { ReactNode } from "react"
+
+import { Button } from "@/components/ui/button"
+import { Separator } from "@/components/ui/separator"
+import { SidebarTrigger } from "@/components/ui/sidebar"
+
+interface SiteHeaderProps {
+  title: string
+  lead?: string
+  primaryAction?: ReactNode
+  secondaryAction?: ReactNode
+}
+
+export function SiteHeader({
+  title,
+  lead,
+  primaryAction,
+  secondaryAction,
+}: SiteHeaderProps) {
+  return (
+    <header className="flex h-(--header-height) shrink-0 items-center gap-3 border-b bg-background/80 px-6 py-3 backdrop-blur supports-[backdrop-filter]:bg-background/60 transition-[width,height] ease-linear group-has-data-[collapsible=icon]/sidebar-wrapper:h-(--header-height) lg:px-8">
+      <SidebarTrigger className="-ml-1" />
+      <Separator orientation="vertical" className="mx-3 hidden h-6 sm:block" />
+      <div className="flex flex-1 flex-col gap-1">
+        {lead ? <span className="text-sm text-muted-foreground">{lead}</span> : null}
+        <h1 className="text-lg font-semibold">{title}</h1>
+      </div>
+      <div className="flex items-center gap-2">
+        {secondaryAction}
+        {primaryAction}
+      </div>
+    </header>
+  )
+}
+
+SiteHeader.PrimaryButton = function SiteHeaderPrimaryButton({
+  children,
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  return (
+    <Button size="sm" {...props}>
+      {children}
+    </Button>
+  )
+}
+
+SiteHeader.SecondaryButton = function SiteHeaderSecondaryButton({
+  children,
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  return (
+    <Button size="sm" variant="outline" {...props}>
+      {children}
+    </Button>
+  )
+}