feat: add auth pages

app/routes/_index.tsx

@@ -1,4 +1,19 @@
 import Home from "~/components/home";
+import type { Route } from "./+types/_index";
+import { auth } from "../../lib/auth";
+import { redirect } from "react-router";
+
+export async function loader({ request }: Route.LoaderArgs) {
+  const session = await auth.api.getSession({
+    headers: request.headers,
+  });
+
+  if (!session) {
+    throw redirect("/log-in");
+  }
+
+  return { session };
+}
 
 export default function HomePage() {
   return <Home />;

app/routes/log-in.tsx

@@ -0,0 +1,20 @@
+import { redirect } from "react-router";
+import type { Route } from "./+types/log-in";
+import { auth } from "../../lib/auth";
+import Login from "~/components/login";
+
+export async function loader({ request }: Route.LoaderArgs) {
+  const session = await auth.api.getSession({
+    headers: request.headers,
+  });
+
+  if (session) {
+    throw redirect("/");
+  }
+
+  return null;
+}
+
+export default function LogInPage() {
+  return <Login />;
+}

app/routes/sign-up.tsx

@@ -0,0 +1,20 @@
+import { redirect } from "react-router";
+import SignUp from "~/components/signup";
+import type { Route } from "../+types/root";
+import { auth } from "../../lib/auth";
+
+export async function loader({ request }: Route.LoaderArgs) {
+  const session = await auth.api.getSession({
+    headers: request.headers,
+  });
+
+  if (session) {
+    throw redirect("/");
+  }
+
+  return null;
+}
+
+export default function SignUpPage() {
+  return <SignUp />;
+}