[1.4.13] With DB - Store multiple account with the same accounId

export const auth = betterAuth({
    secret: env.BETTER_AUTH_SECRET,
    baseURL: env.BETTER_AUTH_URL,

    database: authDatabase,
    plugins: [
        multiSession(),

        genericOAuth({
            config: [
                keycloak({
                    clientId: env.BETTER_AUTH_KEYCLOAK_CLIENT_ID,
                    clientSecret: env.BETTER_AUTH_KEYCLOAK_CLIENT_SECRET,
                    issuer: env.BETTER_AUTH_KEYCLOAK_ISSUER,
                }),
            ],
        }),

        // make sure this is the last plugin in the array
        // https://www.better-auth.com/docs/integrations/next#server-action-cookies
        nextCookies(),
    ],
    account: {
        updateAccountOnSignIn: true,
    }
});