Right side of assignment cannot be destructured?

So, I've Googled until Google was broke (not really, but I'm at my wits' end), and can't seem to pin this error down. It's either in my auth.js (seen below), or in my login.vue (also seen below). The long and short of it is I'm trying to work on a SPA and authentication tutorials are severely out of date. I'm unsure if I updated the code correctly, so please have a look-see and let me know what you think:

Here is auth.js:

export const auth = {
    state:{
        authenticated: false,
        user: {}
    },
    getters: {
        authenticated(state){
            return state.authenticated
        },
        user(state){
            return state.user
        }
    },
    mutations:{
        setAuthenticated (state, value) {
            state.authenticated = value
        },
        setUser (state, value) {
            state.user = value
        }
    },
    actions:{
        login({commit}){
            return axios.get('/api/user').then(({data})=>{
                commit('setUser',data)
                commit('setAuthenticated',true)
                router.push({name:'dashboard'})
            }).catch(({response:{data}})=>{
                commit('setUser',{})
                commit('setAuthenticated',false)
            })
        },
        logout({commit}){
            commit('setUser',{})
            commit('setAuthenticated',false)
        }
    }
}

export default auth

And now my login.vue:

<template>
    <div class="container h-100">
        <div class="row h-100 align-items-center">
            <div class="col-12 col-md-6 offset-md-3">
                <div class="card shadow sm">
                    <div class="card-body">
                        <h1 class="text-center">Login</h1>
                        <hr/>
                        <form action="javascript:void(0)" class="row" method="post">
                            <div class="col-12" v-if="Object.keys(validationErrors).length > 0">
                                <div class="alert alert-danger">
                                    <ul class="mb-0">
                                        <li v-for="(value, key) in validationErrors" :key="key">{{ value[0] }}</li>
                                    </ul>
                                </div>
                            </div>
                            <div class="form-group col-12">
                                <label for="email" class="font-weight-bold">Email</label>
                                <input type="text" v-model="auth.email" name="email" id="email" class="form-control">
                            </div>
                            <div class="form-group col-12 my-2">
                                <label for="password" class="font-weight-bold">Password</label>
                                <input type="password" v-model="auth.password" name="password" id="password" class="form-control">
                            </div>
                            <div class="col-12 mb-2">
                                <button type="submit" :disabled="processing" @click="login" class="btn btn-primary btn-block">
                                    {{ processing ? "Please wait" : "Login" }}
                                </button>
                            </div>
                            <div class="col-12 text-center">
                                <label>Don't have an account? <router-link :to="{name:'register'}">Register Now!</router-link></label>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
import { mapActions } from 'vuex'
export default {
    name:"login",
    data(){
        return {
            auth:{
                email:"",
                password:""
            },
            validationErrors:{},
            processing:false
        }
    },
    methods:{
        ...mapActions({
            signIn:'login'
        }),
        async login(){
            this.processing = true
            await axios.get('/sanctum/csrf-cookie')
            await axios.post('/login',this.auth).then(({data})=>{
                this.signIn()
            }).catch(({response})=>{
                if(response.status===422){
                    this.validationErrors = response.data.errors
                }else{
                    this.validationErrors = {}
                    alert(response.data.message)
                }
            }).finally(()=>{
                this.processing = false
            })
        },
    }
}
</script>
``

It should be noted that all I can currently get out of my console is the assignment issue mentioned in the title.