Remove Discord and Google OAuth verification from CMS

- Remove Discord + Google OAuth providers from NextAuth config
- Remove social login buttons (Discord/Google) from login form
- Delete link-discord.ts action and discord-verify-form.tsx component
- Simplify verify page to email-only verification flow
- Remove connections settings page and its link from settings
- Clean env.ts, .env, .env.example of Discord/Google client vars
- Remove discordUrl social icon from register, login, and homepage
- Clean translation files: remove continueWithDiscord, continueWithGoogle, connections keys

src/app/(site)/verify/page.tsx

@@ -1,14 +1,12 @@
 import Link from "next/link";
 import { getTranslations } from "next-intl/server";
 import { isValidVerificationToken } from "@/actions/email-verify";
-import { DiscordVerifyForm } from "@/components/auth/discord-verify-form";
 import { ContentCard, EmptyState } from "@/components/public/ui";
-import { auth } from "@/lib/auth";
 import { prisma } from "@/lib/prisma";
 
 export const dynamic = "force-dynamic";
 
-type Status = "verified" | "already" | "invalid" | "unavailable" | "discord";
+type Status = "verified" | "already" | "invalid" | "unavailable";
 
 export default async function VerifyPage({
 	searchParams,
@@ -16,36 +14,15 @@ export default async function VerifyPage({
 	searchParams: Promise<{
 		token?: string;
 		email?: string;
-		method?: string;
-		linked?: string;
 	}>;
 }) {
 	const t = await getTranslations("pages.verify");
-	const {
-		token = "",
-		email = "",
-		method = "",
-		linked = "",
-	} = await searchParams;
+	const { token = "", email = "" } = await searchParams;
 	const normalisedEmail = email.trim().toLowerCase();
 
 	let status: Status = "invalid";
-	let discordAlreadyLinked = false;
 
-	if (method === "discord" || linked === "1") {
-		status = "discord";
-		const session = await auth();
-		if (session?.user?.id) {
-			const userId = Number(session.user.id);
-			try {
-				const linkedRow = await prisma.socialAccounts.findFirst({
-					where: { userId: BigInt(userId), provider: "discord" },
-					select: { id: true },
-				});
-				discordAlreadyLinked = !!linkedRow;
-			} catch {}
-		}
-	} else if (normalisedEmail && token) {
+	if (normalisedEmail && token) {
 		const ok = await isValidVerificationToken(normalisedEmail, token);
 		if (ok) {
 			try {
@@ -128,44 +105,6 @@ export default async function VerifyPage({
 					</div>
 				</ContentCard>
 			)}
-
-			{status === "discord" && (
-				<ContentCard
-					icon="🎮"
-					title="Verifieer via Discord"
-					subtitle="Koppel je Discord account"
-				>
-					{linked === "1" && (
-						<div
-							className="rounded-md p-4 text-center mb-4"
-							style={{ backgroundColor: "#14532d", color: "white" }}
-						>
-							<p className="text-lg font-bold mb-1">Gelinkt!</p>
-							<p className="text-sm opacity-90">
-								Je Discord account is gekoppeld. Je kunt nu verder.
-							</p>
-						</div>
-					)}
-					{discordAlreadyLinked ? (
-						<div
-							className="rounded-md p-4 text-center"
-							style={{ backgroundColor: "#14532d", color: "white" }}
-						>
-							<p className="text-lg font-bold mb-1">Al geverifieerd!</p>
-							<p className="text-sm opacity-90">
-								Je Discord account is al gekoppeld aan dit account.
-							</p>
-						</div>
-					) : (
-						<DiscordVerifyForm />
-					)}
-					<div style={{ textAlign: "center", marginTop: "1rem" }}>
-						<Link href="/" className="btn btn-primary">
-							Naar home
-						</Link>
-					</div>
-				</ContentCard>
-			)}
 		</main>
 	);
 }