feat: implement cookie management for access and refresh tokens

apps/landing/src/lib/cookies.ts

@@ -0,0 +1,24 @@
+import { cookies } from 'next/headers';
+
+const REFRESH_TOKEN_NAME = '__imphnen_refresh_token__';
+const ACCESS_TOKEN_NAME = '__imphnen_access_token__';
+
+export async function setRefreshToken(refreshToken: string) {
+  const cookieStore = await cookies();
+  cookieStore.set(REFRESH_TOKEN_NAME, refreshToken);
+}
+
+export async function setAccessToken(accessToken: string) {
+  const cookieStore = await cookies();
+  cookieStore.set(ACCESS_TOKEN_NAME, accessToken);
+}
+
+export async function getRefreshToken() {
+  const cookieStore = await cookies();
+  return cookieStore.get(REFRESH_TOKEN_NAME)?.value;
+}
+
+export async function getAccessToken() {
+  const cookieStore = await cookies();
+  return cookieStore.get(ACCESS_TOKEN_NAME)?.value;
+}