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/native-select.tsx

@@ -1,11 +1,11 @@
-import * as React from "react"
+import * as React from "react";
 
-import { cn } from "@/lib/utils"
-import { ChevronDownIcon } from "lucide-react"
+import { cn } from "@/lib/utils";
+import { ChevronDownIcon } from "lucide-react";
 
 type NativeSelectProps = Omit<React.ComponentProps<"select">, "size"> & {
-  size?: "sm" | "default"
-}
+  size?: "sm" | "default";
+};
 
 function NativeSelect({
   className,
@@ -16,7 +16,7 @@ function NativeSelect({
     <div
       className={cn(
         "group/native-select relative w-fit has-[select:disabled]:opacity-50",
-        className
+        className,
       )}
       data-slot="native-select-wrapper"
       data-size={size}
@@ -27,9 +27,13 @@ function NativeSelect({
         className="h-8 w-full min-w-0 appearance-none rounded-lg border border-input bg-transparent py-1 pr-8 pl-2.5 text-sm transition-colors outline-none select-none selection:bg-primary selection:text-primary-foreground placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:pointer-events-none disabled:cursor-not-allowed aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 data-[size=sm]:h-7 data-[sLine truncated
         {...props}
       />
-      <ChevronDownIcon className="pointer-events-none absolute top-1/2 right-2.5 size-4 -translate-y-1/2 text-muted-foreground select-none" aria-hidden="true" data-slot="native-select-icon" />
+      <ChevronDownIcon
+        className="pointer-events-none absolute top-1/2 right-2.5 size-4 -translate-y-1/2 text-muted-foreground select-none"
+        aria-hidden="true"
+        data-slot="native-select-icon"
+      />
     </div>
-  )
+  );
 }
 
 function NativeSelectOption({
@@ -42,7 +46,7 @@ function NativeSelectOption({
       className={cn("bg-[Canvas] text-[CanvasText]", className)}
       {...props}
     />
-  )
+  );
 }
 
 function NativeSelectOptGroup({
@@ -55,7 +59,7 @@ function NativeSelectOptGroup({
       className={cn("bg-[Canvas] text-[CanvasText]", className)}
       {...props}
     />
-  )
+  );
 }
 
-export { NativeSelect, NativeSelectOptGroup, NativeSelectOption }
+export { NativeSelect, NativeSelectOptGroup, NativeSelectOption };