switch to monorepo structure

packages/web/src/auth.ts

@@ -0,0 +1,14 @@
+import { useMutation } from "@tanstack/react-query"
+
+function useLogin() {
+	return useMutation({
+		mutationFn: async (creds: { username: string; password: string }) => {
+			await fetch("/api/login", {
+				method: "POST",
+				body: JSON.stringify(creds),
+			})
+		},
+	})
+}
+
+export { useLogin }