fix(auth): migrate frontend to Better Auth

src/views/auth/RegisterView.vue

@@ -1,8 +1,8 @@
 <script setup lang="ts">
-import { computed, ref } from 'vue'
+import { ref } from 'vue'
 import { useRoute } from 'vue-router'
 import { NAlert, NButton, NCard, NForm, NFormItem, NInput, NResult } from 'naive-ui'
-import { ApiError } from '@/lib/api'
+import { AuthClientError } from '@/lib/authClient'
 import { useAuthStore } from '@/stores/auth'
 
 const authStore = useAuthStore()
@@ -15,9 +15,7 @@ const confirmPassword = ref('')
 const error = ref('')
 const loading = ref(false)
 const registered = ref(false)
-const emailDelivered = ref(true)
 const registerConflict = ref(false)
-const canResend = computed(() => registerConflict.value)
 
 async function handleRegister() {
   error.value = ''
@@ -48,12 +46,11 @@ async function handleRegister() {
 
   loading.value = true
   try {
-    const response = await authStore.register(trimmedName, trimmedEmail, password.value)
+    await authStore.register(trimmedName, trimmedEmail, password.value)
     email.value = trimmedEmail
-    emailDelivered.value = response.email_sent
     registered.value = true
   } catch (e: unknown) {
-    if (e instanceof ApiError && e.status === 409) {
+    if (e instanceof AuthClientError && (e.status === 409 || e.code === 'USER_ALREADY_EXISTS')) {
       registerConflict.value = true
       error.value = '邮箱或用户名已被占用；若邮箱尚未验证，可以尝试重发验证邮件。'
     } else {
@@ -93,11 +90,9 @@ async function handleRegister() {
       <NCard class="oc-panel-card-xl min-w-0 h-full">
         <NResult
           v-if="registered"
-          :status="emailDelivered ? 'success' : 'warning'"
+          status="success"
           title="确认你的邮箱"
-          :description="emailDelivered
-            ? '确认邮件已经发送，请查收并点击链接完成注册。'
-            : '账号已创建，但验证邮件暂未送达。请使用重发验证功能，不要重复注册。'"
+          description="如该邮箱可以注册，请查收验证邮件并点击链接。验证后请重新登录。"
         >
           <template #footer>
             <div class="space-y-4">
@@ -137,7 +132,7 @@ async function handleRegister() {
 
             <NAlert v-if="error" type="error" class="mb-4">
               {{ error }}
-              <div v-if="canResend" class="mt-2">
+              <div v-if="registerConflict" class="mt-2">
                 <RouterLink :to="{ path: '/resend-confirmation', query: { email } }" class="font-semibold text-rose-700 underline underline-offset-2">重发验证邮件</RouterLink>
               </div>
             </NAlert>