feat: disable user registration and update sign-in messaging

Author: Lionvsx

apps/web/src/components/SignInForm.component.tsx

@@ -216,15 +216,9 @@ export function SignInForm() {
 					</div>
 				</div>
 
-				{/* Bottom link */}
+				{/* Registration disabled */}
 				<p className="mt-6 text-center text-sm text-muted-foreground">
-					Don&apos;t have an account?&nbsp;
-					<Link
-						to="/sign-up"
-						className="font-semibold text-foreground underline underline-offset-4 transition-colors hover:text-brand-accent"
-					>
-						Register
-					</Link>
+					Sign-ups are currently closed. Existing users only.
 				</p>
 			</div>
 		</div>

packages/backend/convex/auth.ts

@@ -25,15 +25,18 @@ function createAuth(ctx: GenericCtx<DataModel>) {
 		emailAndPassword: {
 			enabled: true,
 			requireEmailVerification: false,
+			disableSignUp: true,
 		},
 		socialProviders: {
 			google: {
 				clientId: process.env.GOOGLE_CLIENT_ID!,
 				clientSecret: process.env.GOOGLE_CLIENT_SECRET!,
+				disableImplicitSignUp: true,
 			},
 			github: {
 				clientId: process.env.GITHUB_CLIENT_ID!,
 				clientSecret: process.env.GITHUB_CLIENT_SECRET!,
+				disableImplicitSignUp: true,
 			},
 		},
 		plugins: [