feat(helpdesk): add helpdesk pages

Add the helpdesk list page and ticket detail page routes.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/app/(frontend)/helpdesk/[id]/page.tsx

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+import config from "@payload-config";
+import { headers as nextHeaders } from "next/headers";
+import { notFound, redirect } from "next/navigation";
+import { getPayload } from "payload";
+import type { Ticket } from "@/payload-types";
+import { TicketDetail } from "@/components/frontend/helpdesk/TicketDetail";
+import hasRoles from "@/utils/access-control/hasRoles";
+import { ArrowLeftIcon, LifeBuoyIcon } from "lucide-react";
+import Link from "next/link";
+
+export const metadata = {
+  title: "Ticket — Polaris Task Force",
+};
+
+interface TicketPageProps {
+  params: Promise<{ id: string }>;
+}
+
+export default async function TicketPage({ params }: TicketPageProps) {
+  const { id } = await params;
+  const payload = await getPayload({ config });
+  const { user } = await payload.auth({
+    headers: await nextHeaders(),
+    canSetHeaders: false,
+  });
+
+  if (!user) {
+    redirect("/login");
+  }
+
+  const ticket = await payload
+    .findByID({
+      collection: "tickets",
+      id: Number(id),
+      depth: 2,
+    })
+    .catch(() => null);
+
+  if (!ticket) {
+    notFound();
+  }
+
+  const typedTicket = ticket as unknown as Ticket;
+  const isStaff = hasRoles(["admin", "developer"], user);
+  const assigneeOptions = isStaff
+    ? (
+        await payload.find({
+          collection: "users",
+          sort: "username",
+          limit: 100,
+          depth: 0,
+        })
+      ).docs.map((staffUser) => ({
+        id: staffUser.id,
+        label: staffUser.payloadDisplayName || staffUser.username,
+      }))
+    : [];
+
+  return (
+    <div className="flex flex-col gap-6 p-5">
+      <div className="flex flex-col gap-3">
+        <Link
+          href="/helpdesk"
+          className="flex w-fit items-center gap-1 text-sm text-muted-foreground transition-colors hover:text-primary"
+        >
+          <ArrowLeftIcon className="size-3" />
+          Helpdesk
+        </Link>
+        <div className="flex items-center gap-2">
+          <LifeBuoyIcon className="size-5 text-muted-foreground" />
+          <h1 className="text-lg font-semibold">Ticket #{typedTicket.id}</h1>
+        </div>
+      </div>
+
+      <TicketDetail
+        ticket={typedTicket}
+        currentUserId={user.id}
+        isStaff={isStaff}
+        assigneeOptions={assigneeOptions}
+      />
+    </div>
+  );
+}

src/app/(frontend)/helpdesk/page.tsx

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+import config from "@payload-config";
+import { headers as nextHeaders } from "next/headers";
+import { redirect } from "next/navigation";
+import { getPayload } from "payload";
+import type { Ticket } from "@/payload-types";
+import { TicketsView } from "@/components/frontend/helpdesk/TicketsView";
+import hasRoles from "@/utils/access-control/hasRoles";
+import { LifeBuoyIcon } from "lucide-react";
+
+export const metadata = {
+  title: "Helpdesk — Polaris Task Force",
+};
+
+export default async function HelpdeskPage() {
+  const payload = await getPayload({ config });
+  const { user } = await payload.auth({
+    headers: await nextHeaders(),
+    canSetHeaders: false,
+  });
+
+  if (!user) {
+    redirect("/login");
+  }
+
+  const ticketsRes = await payload.find({
+    collection: "tickets",
+    sort: "-updatedAt",
+    limit: 200,
+    depth: 2,
+  });
+  const tickets = ticketsRes.docs as unknown as Ticket[];
+  const isStaff = hasRoles(["admin", "developer"], user);
+
+  return (
+    <div className="flex flex-col gap-6 p-5">
+      <div className="flex flex-col gap-1">
+        <div className="flex items-center gap-2">
+          <LifeBuoyIcon className="size-5 text-muted-foreground" />
+          <h1 className="text-lg font-semibold">Helpdesk</h1>
+        </div>
+        <p className="text-sm text-muted-foreground">Submit and track support requests.</p>
+      </div>
+
+      <TicketsView tickets={tickets} currentUserId={user.id} isStaff={isStaff} />
+    </div>
+  );
+}