I feel like dying at this point. Nothing I do fixes it, my session is always null, except If I dont make the api call(or even include it), and return email, id, then the session gets updated:
auth.ts

import NextAuth from "next-auth";
import CredentialsProvider from "next-auth/providers/credentials";
import axios from 'axios';
import { getUserByEmail } from "./data/users";

export const {
    handlers: { GET, POST },
    auth,
    signIn,
    signOut,
} = NextAuth({
    session: {
      strategy: 'jwt',
    },
    providers: [
      CredentialsProvider({
        name: "Credentials",
        credentials: {
          email: { label: "Email", type: "email" },
          password: { label: "Password", type: "password" }
        },
        async authorize(credentials) {
          if (!credentials?.email || !credentials?.password) {
            return null;
          }

          try {
            const users = await axios.post('https:external/users/login', {
              "email": credentials.email,
              "password": credentials.password
            });
    
            const user = users?.data;
            if (user && user.id) {
              return {
                id: user.id,
                email: user.email,
              };
            } else {
              return null;
            }
          } catch (error) {
            console.error("Authentication error:", error);
            return null;
          }
        }
      })
    ],
    debug: true,
    callbacks: {
      async jwt({ token, user }) {
        if (user) {
          token.id = user.id;
          token.email = user.email;
          token.name = user.name;

        }
        return token;
      },
      async session({ session, token }) {
        if (token) {
          session.user = {
            id: token?.id,
            email: token.email,
            name: token.name,
          };
        }
        return session;
      },
    }
});