feat(backoffice): redesign backoffice UI dengan shadcn/ui

Menyeluruh merancang ulang apps/backoffice memakai pola shadcn/ui sambil
mempertahankan seluruh palette warna existing (primary/neutral/success/
info/warning/danger) dan typography Bai Jamjuree.

UI library (libs/ui):
- Atoms existing (Button, Input, Label, Textarea, Card, Dialog, Drawer,
  Form, Select, Toggle) dirombak ke pola shadcn, API dipertahankan agar
  sibling apps (gacha, dimentorin, hackathon, qrcampaign) tidak break
- Select atom beralih dari native ke Radix Select + NativeSelect fallback
- 18 atom baru: Badge, Avatar, Separator, Skeleton, Tabs, Tooltip,
  DropdownMenu, Popover, AlertDialog, Checkbox, RadioGroup, Switch,
  ScrollArea, Sheet, Sidebar, Breadcrumb, Table, + use-mobile hook
- DataTable, Filter, BackofficeWrapper, Pagination, Modal (alias Dialog)
  direstyle dengan token baru
- CSS variable layer shadcn ditambahkan (--color-primary, --color-sidebar-*,
  dll) dipetakan ke palette existing; tw-animate-css di-import untuk
  transisi

Backoffice shell:
- Sidebar bersarang SidebarProvider + SidebarInset, built-in mobile Sheet,
  user DropdownMenu (Avatar + logout), ikon lucide-react

Pages redesign (19 list/dashboard/settings):
- accounts, cms-events, cms-testimonials, dashboard, dashboard-dimentorin
  (dengan recharts di Card), feedback-review-dimentorin, gacha-roll,
  hackathon-dashboard, hackathon-submissions, hackathon-teams,
  hackathon-users, permissions, prizes, roadmap-dimentorin, roles,
  session-dimentorin, settings-dimentorin (Tabs), transactions,
  users-dimentorin (Tabs mentor/mentee)
- Pola unified: BackofficeWrapper > Card (CardHeader toolbar + CardContent
  DataTable) + AlertDialog untuk delete confirm
- Form accounts_/$id diredesign; form pages lain tetap pakai
  ControlledInputField yang sekarang berbasis shadcn Input

Dependencies:
- +20 radix-ui primitives, lucide-react, cmdk, input-otp
- Select native patched di dimentorin (profile-sidebar, schedule step)
  untuk tetap kompatibel via NativeSelect alias

Verifikasi:
- nx build backoffice: sukses (2.33s, 4801 modules)
- nx build dimentorin/gacha/hackathon/qrcampaign: semua sukses (zero
  regresi dari rewrite libs/ui)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

libs/ui/src/atoms/table/table.tsx

@@ -0,0 +1,115 @@
+'use client';
+
+import * as React from 'react';
+import { cn } from '@imphnen-frontend-service/utils';
+
+function Table({ className, ...props }: React.ComponentProps<'table'>) {
+  return (
+    <div
+      data-slot="table-container"
+      className="relative w-full overflow-x-auto"
+    >
+      <table
+        data-slot="table"
+        className={cn('w-full caption-bottom text-sm', className)}
+        {...props}
+      />
+    </div>
+  );
+}
+
+function TableHeader({ className, ...props }: React.ComponentProps<'thead'>) {
+  return (
+    <thead
+      data-slot="table-header"
+      className={cn('[&_tr]:border-b', className)}
+      {...props}
+    />
+  );
+}
+
+function TableBody({ className, ...props }: React.ComponentProps<'tbody'>) {
+  return (
+    <tbody
+      data-slot="table-body"
+      className={cn('[&_tr:last-child]:border-0', className)}
+      {...props}
+    />
+  );
+}
+
+function TableFooter({ className, ...props }: React.ComponentProps<'tfoot'>) {
+  return (
+    <tfoot
+      data-slot="table-footer"
+      className={cn(
+        'border-t bg-neutral-50 font-medium [&>tr]:last:border-b-0',
+        className
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableRow({ className, ...props }: React.ComponentProps<'tr'>) {
+  return (
+    <tr
+      data-slot="table-row"
+      className={cn(
+        'border-b transition-colors hover:bg-neutral-50/60 data-[state=selected]:bg-primary-50',
+        className
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableHead({ className, ...props }: React.ComponentProps<'th'>) {
+  return (
+    <th
+      data-slot="table-head"
+      className={cn(
+        'h-10 px-3 text-left align-middle text-xs font-semibold text-muted-foreground whitespace-nowrap [&:has([role=checkbox])]:pr-0',
+        className
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableCell({ className, ...props }: React.ComponentProps<'td'>) {
+  return (
+    <td
+      data-slot="table-cell"
+      className={cn(
+        'p-3 align-middle whitespace-nowrap [&:has([role=checkbox])]:pr-0',
+        className
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableCaption({
+  className,
+  ...props
+}: React.ComponentProps<'caption'>) {
+  return (
+    <caption
+      data-slot="table-caption"
+      className={cn('mt-4 text-sm text-muted-foreground', className)}
+      {...props}
+    />
+  );
+}
+
+export {
+  Table,
+  TableHeader,
+  TableBody,
+  TableFooter,
+  TableHead,
+  TableRow,
+  TableCell,
+  TableCaption,
+};