feat(submissions): add login requirement for submissions page

- Add SubmissionLoginButton component for unauthenticated users
- Modify submissions page to check auth session
- Filter submissions by current user when logged in

src/app/(app)/problems/[id]/@Submissions/page.tsx

@@ -1,8 +1,10 @@
 import prisma from "@/lib/prisma";
+import { auth } from "@/lib/auth";
 import { notFound } from "next/navigation";
 import { getUserLocale } from "@/i18n/locale";
 import SubmissionsTable from "@/components/submissions-table";
 import { ScrollArea, ScrollBar } from "@/components/ui/scroll-area";
+import SubmissionLoginButton from "@/components/submission-login-button";
 
 interface SubmissionsPageProps {
   params: Promise<{ id: string }>;
@@ -10,15 +12,26 @@ interface SubmissionsPageProps {
 
 export default async function SubmissionsPage({ params }: SubmissionsPageProps) {
   const { id } = await params;
+  const session = await auth();
 
   if (!id) {
     return notFound();
   }
 
+  if (!session?.user?.id) {
+    return (
+      <SubmissionLoginButton />
+    )
+  }
+
+
   const problem = await prisma.problem.findUnique({
     where: { id },
     select: {
       submissions: {
+        where: {
+          userId: session.user.id,
+        },
         include: {
           testcaseResults: {
             include: {

src/components/features/playground/problem/description/footer.tsx

@@ -16,7 +16,7 @@ export default function ProblemDescriptionFooter({
       className={cn("h-9 flex flex-none items-center bg-muted px-3 py-2", className)}
     >
       <div className="w-full flex items-center justify-center">
-        <span className="truncate">Description of {title}</span>
+        <span className="truncate">{title}</span>
       </div>
     </footer>
   );

src/components/features/playground/problem/solution/footer.tsx

@@ -16,7 +16,7 @@ export default function ProblemSolutionFooter({
       className={cn("h-9 flex flex-none items-center bg-muted px-3 py-2", className)}
     >
       <div className="w-full flex items-center justify-center">
-        <span className="truncate">Solution of {title}</span>
+        <span className="truncate">{title}</span>
       </div>
     </footer>
   );

src/components/submission-login-button.tsx

@@ -0,0 +1,36 @@
+"use client";
+
+import { CodeXmlIcon } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { usePathname, useRouter, useSearchParams } from "next/navigation";
+
+export default function SubmissionLoginButton() {
+  const router = useRouter();
+  const pathname = usePathname();
+  const searchParams = useSearchParams();
+
+  const handleLogIn = () => {
+    const params = new URLSearchParams(searchParams.toString());
+    params.set("redirectTo", pathname);
+    router.push(`/sign-in?${params.toString()}`);
+  };
+
+  return (
+    <div className="flex h-full flex-col items-center justify-start gap-2 pt-[10vh]">
+      <div className="flex items-center gap-3">
+        <CodeXmlIcon
+          className="shrink-0 text-blue-500"
+          size={16}
+          aria-hidden="true"
+        />
+        <p className="text-base font-medium">Join Judge4c to Code!</p>
+      </div>
+      <p className="text-sm text-muted-foreground">
+        View your Submission records here
+      </p>
+      <Button size="sm" onClick={handleLogIn}>
+        Log In
+      </Button>
+    </div>
+  );
+}