feat(ticket): split overview/class detail queries and add loading skeletons

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

@@ -0,0 +1,108 @@
+import { Card, CardContent, CardHeader } from '@/components/ui/card';
+import { Skeleton } from '@/components/ui/skeleton';
+
+export function TicketClassContentSkeleton() {
+  return (
+    <div className="space-y-5" aria-label="Loading defect class details">
+      <Card>
+        <CardHeader className="sm:grid-cols-[1fr_auto]">
+          <Skeleton className="h-5 w-36" />
+          <Skeleton className="h-3 w-32 sm:col-start-2 sm:row-start-1" />
+        </CardHeader>
+        <CardContent className="space-y-5">
+          <div className="grid grid-cols-1 gap-4 sm:grid-cols-2">
+            {Array.from({ length: 2 }).map((_, index) => (
+              <div key={index} className="space-y-1">
+                <Skeleton className="h-3 w-20" />
+                <Skeleton className="h-4 w-36" />
+              </div>
+            ))}
+          </div>
+          <div className="space-y-2">
+            <Skeleton className="h-3 w-24" />
+            <div className="rounded-lg border bg-muted/15 px-4 py-3">
+              <Skeleton className="h-4 w-full" />
+              <Skeleton className="mt-2 h-4 w-3/4" />
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <Skeleton className="h-5 w-40" />
+        </CardHeader>
+        <CardContent className="grid grid-cols-1 gap-4 lg:grid-cols-2">
+          <Skeleton className="aspect-video w-full rounded-md" />
+          <Skeleton className="aspect-video w-full rounded-md" />
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <Skeleton className="h-5 w-32" />
+        </CardHeader>
+        <CardContent>
+          <div className="grid grid-cols-2 gap-3 sm:grid-cols-3 lg:grid-cols-5">
+            {Array.from({ length: 5 }).map((_, index) => (
+              <div key={index} className="space-y-2 rounded-lg border p-2">
+                <Skeleton className="aspect-4/3 w-full rounded-lg" />
+                <Skeleton className="h-3 w-16" />
+              </div>
+            ))}
+          </div>
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <Skeleton className="h-5 w-56" />
+        </CardHeader>
+        <CardContent className="pl-5.5">
+          {Array.from({ length: 3 }).map((_, index) => (
+            <div key={index} className="relative flex gap-4 pb-8 last:pb-0">
+              {index < 2 ? (
+                <span 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>
+          ))}
+        </CardContent>
+      </Card>
+    </div>
+  );
+}
+
+export function TicketClassActionsSkeleton() {
+  return (
+    <Card aria-label="Loading defect class actions">
+      <CardHeader>
+        <div className="flex items-center gap-2">
+          <Skeleton className="size-4 rounded" />
+          <Skeleton className="h-5 w-32" />
+        </div>
+      </CardHeader>
+      <CardContent>
+        <div className="space-y-4">
+          <div className="space-y-2">
+            <Skeleton className="h-4 w-20" />
+            <Skeleton className="h-10 w-full" />
+          </div>
+          <div className="space-y-2">
+            <Skeleton className="h-4 w-12" />
+            <Skeleton className="h-20 w-full" />
+          </div>
+          <Skeleton className="h-10 w-full" />
+        </div>
+      </CardContent>
+    </Card>
+  );
+}