refactor(hub): migrate dashboard to shadcn components

Replace manual CSS classes with shadcn Card, CardHeader, CardTitle,
CardContent, and Badge components. Remove inline <style> block —
use Tailwind utility classes via shadcn theme tokens. Add Biome
formatting across all components.

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

src/components/ui/breadcrumb.tsx

@@ -1,9 +1,9 @@
-import * as React from "react"
-import { mergeProps } from "@base-ui/react/merge-props"
-import { useRender } from "@base-ui/react/use-render"
+import * as React from "react";
+import { mergeProps } from "@base-ui/react/merge-props";
+import { useRender } from "@base-ui/react/use-render";
 
-import { cn } from "@/lib/utils"
-import { ChevronRightIcon, MoreHorizontalIcon } from "lucide-react"
+import { cn } from "@/lib/utils";
+import { ChevronRightIcon, MoreHorizontalIcon } from "lucide-react";
 
 function Breadcrumb({ className, ...props }: React.ComponentProps<"nav">) {
   return (
@@ -13,7 +13,7 @@ function Breadcrumb({ className, ...props }: React.ComponentProps<"nav">) {
       className={cn(className)}
       {...props}
     />
-  )
+  );
 }
 
 function BreadcrumbList({ className, ...props }: React.ComponentProps<"ol">) {
@@ -22,11 +22,11 @@ function BreadcrumbList({ className, ...props }: React.ComponentProps<"ol">) {
       data-slot="breadcrumb-list"
       className={cn(
         "flex flex-wrap items-center gap-1.5 text-sm wrap-break-word text-muted-foreground",
-        className
+        className,
       )}
       {...props}
     />
-  )
+  );
 }
 
 function BreadcrumbItem({ className, ...props }: React.ComponentProps<"li">) {
@@ -36,7 +36,7 @@ function BreadcrumbItem({ className, ...props }: React.ComponentProps<"li">) {
       className={cn("inline-flex items-center gap-1", className)}
       {...props}
     />
-  )
+  );
 }
 
 function BreadcrumbLink({
@@ -50,13 +50,13 @@ function BreadcrumbLink({
       {
         className: cn("transition-colors hover:text-foreground", className),
       },
-      props
+      props,
     ),
     render,
     state: {
       slot: "breadcrumb-link",
     },
-  })
+  });
 }
 
 function BreadcrumbPage({ className, ...props }: React.ComponentProps<"span">) {
@@ -69,7 +69,7 @@ function BreadcrumbPage({ className, ...props }: React.ComponentProps<"span">) {
       className={cn("font-normal text-foreground", className)}
       {...props}
     />
-  )
+  );
 }
 
 function BreadcrumbSeparator({
@@ -85,11 +85,9 @@ function BreadcrumbSeparator({
       className={cn("[&>svg]:size-3.5", className)}
       {...props}
     >
-      {children ?? (
-        <ChevronRightIcon />
-      )}
+      {children ?? <ChevronRightIcon />}
     </li>
-  )
+  );
 }
 
 function BreadcrumbEllipsis({
@@ -103,15 +101,14 @@ function BreadcrumbEllipsis({
       aria-hidden="true"
       className={cn(
         "flex size-5 items-center justify-center [&>svg]:size-4",
-        className
+        className,
       )}
       {...props}
     >
-      <MoreHorizontalIcon
-      />
+      <MoreHorizontalIcon />
       <span className="sr-only">More</span>
     </span>
-  )
+  );
 }
 
 export {
@@ -122,4 +119,4 @@ export {
   BreadcrumbPage,
   BreadcrumbSeparator,
   BreadcrumbEllipsis,
-}
+};