feat(ticket): add skeleton loading state for ticket detail page

src/app/(modules)/ticket/[ticketId]/components/TicketDetailSkeleton.tsx

@@ -0,0 +1,103 @@
+'use client';
+
+import { Skeleton } from '@/components/ui/skeleton';
+
+function OverviewSkeletonField() {
+  return (
+    <div className="space-y-2">
+      <Skeleton className="h-3 w-24" />
+      <Skeleton className="h-4 w-32" />
+    </div>
+  );
+}
+
+function TimelineSkeletonItem({ isLast = false }: { isLast?: boolean }) {
+  return (
+    <div className="relative flex gap-4 pb-8 last:pb-0">
+      {!isLast ? (
+        <span
+          aria-hidden
+          className="absolute top-6 left-2.75 h-[calc(100%-10px)] w-px bg-border"
+        />
+      ) : null}
+      <Skeleton className="relative z-10 mt-0.5 size-6 shrink-0 rounded-full" />
+      <div className="min-w-0 flex-1 space-y-3">
+        <div className="flex flex-wrap items-center gap-3">
+          <Skeleton className="h-4 w-44" />
+          <Skeleton className="h-3 w-28" />
+        </div>
+        <Skeleton className="h-3 w-56" />
+        <Skeleton className="h-12 w-full" />
+      </div>
+    </div>
+  );
+}
+
+export function TicketDetailSkeleton() {
+  return (
+    <main className="relative z-10 space-y-5">
+      <div className="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
+        <div className="min-w-0 space-y-2">
+          <div className="flex flex-wrap items-center gap-2">
+            <Skeleton className="h-8 w-40" />
+            <Skeleton className="h-6 w-24 rounded-full" />
+          </div>
+          <Skeleton className="h-3 w-72 max-w-full" />
+        </div>
+
+        <div className="flex shrink-0 items-center gap-2">
+          <Skeleton className="h-10 w-36" />
+          <Skeleton className="h-8 w-28" />
+        </div>
+      </div>
+
+      <div className="grid gap-5 xl:grid-cols-[minmax(0,7fr)_minmax(0,3fr)]">
+        <div className="space-y-5">
+          <section className="overflow-hidden rounded-xl border bg-card">
+            <div className="border-b px-4 py-2.5">
+              <Skeleton className="h-4 w-20" />
+            </div>
+            <div className="grid grid-cols-2 gap-x-4 gap-y-6 p-4 md:grid-cols-4">
+              {Array.from({ length: 8 }).map((_, index) => (
+                <OverviewSkeletonField key={index} />
+              ))}
+            </div>
+          </section>
+
+          <section className="space-y-5">
+            <div className="rounded-xl border bg-card p-5">
+              <Skeleton className="mb-4 h-5 w-40" />
+              <div className="space-y-3">
+                <Skeleton className="h-4 w-full" />
+                <Skeleton className="h-4 w-5/6" />
+                <Skeleton className="h-4 w-2/3" />
+              </div>
+            </div>
+            <Skeleton className="aspect-video w-full rounded-xl border" />
+          </section>
+
+          <section className="rounded-xl border bg-card p-5">
+            <div className="mb-5 flex items-center gap-2">
+              <Skeleton className="size-5 rounded-full" />
+              <Skeleton className="h-5 w-56" />
+            </div>
+            <div className="pl-0.5">
+              <TimelineSkeletonItem />
+              <TimelineSkeletonItem />
+              <TimelineSkeletonItem isLast />
+            </div>
+          </section>
+        </div>
+
+        <aside className="self-start rounded-xl border bg-card p-5">
+          <Skeleton className="mb-4 h-5 w-36" />
+          <div className="space-y-3">
+            <Skeleton className="h-10 w-full" />
+            <Skeleton className="h-10 w-full" />
+            <Skeleton className="h-24 w-full" />
+          </div>
+        </aside>
+      </div>
+    </main>
+  );
+}

src/app/(modules)/ticket/[ticketId]/page.tsx

@@ -1,11 +1,12 @@
 'use client';
 
 import { useParams, useRouter } from 'next/navigation';
-import { ArrowLeft, Loader2 } from 'lucide-react';
+import { ArrowLeft } from 'lucide-react';
 
 import { Button } from '@/components/ui/button';
 
 import { TicketDetailHeader } from './components/TicketDetailHeader';
+import { TicketDetailSkeleton } from './components/TicketDetailSkeleton';
 
 import { TicketHistoryCard } from './components/TicketHistoryCard';
 import { TicketOverviewCard } from './components/TicketOverviewCard';
@@ -27,11 +28,7 @@ export default function TicketDetailPage() {
   );
 
   if (ticketQuery.isLoading) {
-    return (
-      <div className="flex min-h-[60vh] items-center justify-center">
-        <Loader2 className="size-8 animate-spin text-primary" />
-      </div>
-    );
+    return <TicketDetailSkeleton />;
   }
 
   if (ticketQuery.isError || !ticket) {
@@ -61,7 +58,7 @@ export default function TicketDetailPage() {
           <TicketHistoryCard ticket={ticket} />
         </div>
 
-        <div>
+        <div className="self-start">
           <TicketStatusActions ticket={ticket} liveState={liveState} />
         </div>
       </div>