Auth Client not sending cookies to Server

// auth-client.js
import { adminClient, organizationClient } from "better-auth/client/plugins";
import { nextCookies } from "better-auth/next-js";
import { createAuthClient } from "better-auth/react";

export const authClient = createAuthClient({
  baseURL: "http://localhost:3005",
  plugins: [
    adminClient(),
    organizationClient(),
    nextCookies(),
  ]
})

// api-fetch.ts
import { cookies } from "next/headers"
import { authClient } from "./auth-client"

export default async function apiFetch(url: string) {
  const cookieStore = await cookies()
  const cookieHeader = Array.from(cookieStore.getAll())
    .map(({ name, value }) => `${name}=${value}`)
    .join("; ");
    
  const resp = authClient.$fetch(url, {
    headers: {
      // manual cookie included
      Cookie: cookieHeader,
    },
  })
  return resp
}