feat: add environment configuration and implement cookie handling for user authentication

app/libs/cookies.ts

@@ -0,0 +1,16 @@
+import { adminTokenCookieConfig, userTokenCookieConfig } from './cookie.server'
+
+export const handleCookie = async (request: Request) => {
+  const headers = request.headers
+  const userToken = (await userTokenCookieConfig.parse(
+    headers.get('Cookie'),
+  )) as string
+  const adminToken = (await adminTokenCookieConfig.parse(
+    headers.get('Cookie'),
+  )) as string
+
+  return {
+    userToken,
+    adminToken,
+  }
+}