feat: auth client middleware

apps/client/app/middleware/auth.ts

@@ -0,0 +1,18 @@
+import { redirect, type MiddlewareFunction } from "react-router";
+import { getMe, getStatus } from "~/api-client";
+import { appContext } from "~/context";
+
+export const authMiddleware: MiddlewareFunction = async ({ context }) => {
+	const session = await getMe();
+
+	if (!session.data?.user.id) {
+		const status = await getStatus();
+		if (!status.data?.hasUsers) {
+			throw redirect("/register");
+		}
+
+		throw redirect("/login");
+	}
+
+	context.set(appContext, { user: session.data.user, hasUsers: true });
+};