chore: initial project import

app/templates/[templateId]/page.tsx

@@ -0,0 +1,54 @@
+import { ShellPage } from "@/components/page-templates";
+import { SectionCard } from "@/components/ui";
+import { getSession } from "@/lib/auth";
+import { prisma } from "@/lib/prisma";
+import { redirect } from "next/navigation";
+
+export default async function TemplateDetailPage({ params }: { params: Promise<{ templateId: string }> }) {
+  const { templateId } = await params;
+  const session = await getSession();
+  if (!session) {
+    redirect("/login");
+  }
+
+  const template = await prisma.messageTemplate.findFirst({
+    where: { id: templateId, tenantId: session.tenantId },
+    include: { channel: true }
+  });
+  if (!template) {
+    redirect("/templates?error=template_not_found");
+  }
+
+  return (
+    <ShellPage shell="admin" title="Template Detail" description="Preview content, provider metadata, dan approval state.">
+      <div className="grid gap-6 xl:grid-cols-2">
+        <SectionCard title="Template preview">
+          <p className="text-sm text-on-surface-variant">
+            <strong>Name:</strong> {template.name}
+          </p>
+          <p className="text-sm text-on-surface-variant">
+            <strong>Category:</strong> {template.category}
+          </p>
+          <p className="text-sm text-on-surface-variant">
+            <strong>Language:</strong> {template.languageCode}
+          </p>
+          <p className="mt-4 rounded-xl border border-line bg-surface-container p-3 text-sm text-on-surface-variant">{template.bodyText}</p>
+        </SectionCard>
+        <SectionCard title="Provider status">
+          <p className="text-sm text-on-surface-variant">
+            <strong>Approval:</strong> {template.approvalStatus}
+          </p>
+          <p className="text-sm text-on-surface-variant">
+            <strong>Channel:</strong> {template.channel.channelName}
+          </p>
+          <p className="text-sm text-on-surface-variant">
+            <strong>Provider id:</strong> {template.providerTemplateId || "-"}
+          </p>
+          <p className="text-sm text-on-surface-variant">
+            <strong>Rejected reason:</strong> {template.rejectedReason || "-"}
+          </p>
+        </SectionCard>
+      </div>
+    </ShellPage>
+  );
+}