feat: add Discord role-based access control for forms with custom dropdown UI

app/form/[id]/page.tsx

@@ -3,6 +3,7 @@ import { FormFillerClient } from "../client";
 import { getServerSession } from "next-auth";
 import { authOptions } from "@/app/api/auth/[...nextauth]/route";
 import { notFound } from "next/navigation";
+import { getGuildMemberRoles } from "@/app/actions/discord";
 
 export const dynamic = "force-dynamic";
 
@@ -23,6 +24,29 @@ export default async function FormsSubmitPage(
     return notFound();
   }
 
+  if (discordId) {
+    const allowedRoles = form.allowedRoles || [];
+    const deniedRoles = form.deniedRoles || [];
+
+    if (allowedRoles.length > 0 || deniedRoles.length > 0) {
+      const userRoles = await getGuildMemberRoles(discordId);
+      
+      let isAllowed = allowedRoles.length === 0;
+      if (allowedRoles.length > 0) {
+        isAllowed = userRoles.some(r => allowedRoles.includes(r));
+      }
+
+      let isDenied = false;
+      if (deniedRoles.length > 0) {
+        isDenied = userRoles.some(r => deniedRoles.includes(r));
+      }
+
+      if (!isAllowed || isDenied) {
+        return notFound();
+      }
+    }
+  }
+
   const questionsList = await db.query.questions.findMany({
     where: (q, { eq }) => eq(q.formId, form.id),
     orderBy: (q, { asc }) => [asc(q.displayOrder)],