fix: 批量修复功能问题 - 购物车结算/订单库存积分/搜索/抽奖/个人资料等

frontend/src/views/user/Cart.vue

@@ -418,7 +418,8 @@ async function handleCheckout() {
   try {
     await orderApi.create({ 
       shipping_address_id: selectedAddressId.value,
-      payment_method: selectedPayment.value
+      payment_method: selectedPayment.value,
+      cart_item_ids: selectedIds.value
     })
     ElMessage.success('订单创建成功')
     await cartStore.fetchCart()

frontend/src/views/user/Home.vue

@@ -59,8 +59,8 @@
             <p>{{ l.description }}</p>
           </div>
           <div class="lottery-right">
-            <span class="lottery-status" :class="l.status === 'active' ? 'active' : ''">
-              {{ l.status === 'active' ? '进行中' : '已结束' }}
+            <span class="lottery-status" :class="l.is_active ? 'active' : ''">
+              {{ l.is_active ? '进行中' : '已结束' }}
             </span>
             <button class="lottery-btn">参与</button>
           </div>
@@ -99,7 +99,7 @@
           </div>
           <div class="category-info">
             <h3>{{ cat.name }}</h3>
-            <p>{{ cat.product_count || 0 }} 件商品</p>
+            <p>{{ cat.description || '精选好物' }}</p>
           </div>
           <el-icon class="category-arrow"><ArrowRight /></el-icon>
         </div>

frontend/src/views/user/LotteryDetail.vue

@@ -30,9 +30,9 @@ const route = useRoute()
 const lottery = ref<any>(null)
 
 const prizeTypeMap: Record<string, string> = {
-  product: '商品',
-  credits: '积分',
-  cash: '现金',
+  physical: '实物',
+  virtual: '虚拟',
+  credit: '积分',
 }
 function prizeTypeText(t: string) { return prizeTypeMap[t] || t }
 

frontend/src/views/user/Profile.vue

@@ -19,19 +19,95 @@
         <el-button @click="$router.push('/orders')">我的订单</el-button>
         <el-button v-if="user.role === 'admin'" type="primary" @click="$router.push('/admin')">管理后台</el-button>
         <el-button v-if="user.role === 'supplier'" type="primary" @click="$router.push('/supplier')">供应商后台</el-button>
+        <el-button type="warning" @click="showEditProfile = true">编辑资料</el-button>
+        <el-button type="danger" @click="showChangePassword = true">修改密码</el-button>
       </div>
     </div>
+
+    <el-dialog v-model="showEditProfile" title="编辑资料" width="400px">
+      <el-form :model="profileForm" label-width="80px">
+        <el-form-item label="用户名"><el-input v-model="profileForm.username" /></el-form-item>
+        <el-form-item label="邮箱"><el-input v-model="profileForm.email" /></el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="showEditProfile = false">取消</el-button>
+        <el-button type="primary" @click="saveProfile" :loading="saving">保存</el-button>
+      </template>
+    </el-dialog>
+
+    <el-dialog v-model="showChangePassword" title="修改密码" width="400px">
+      <el-form :model="passwordForm" label-width="80px">
+        <el-form-item label="旧密码"><el-input v-model="passwordForm.old_password" type="password" show-password /></el-form-item>
+        <el-form-item label="新密码"><el-input v-model="passwordForm.new_password" type="password" show-password /></el-form-item>
+        <el-form-item label="确认密码"><el-input v-model="passwordForm.confirm_password" type="password" show-password /></el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="showChangePassword = false">取消</el-button>
+        <el-button type="primary" @click="changePassword" :loading="saving">确认修改</el-button>
+      </template>
+    </el-dialog>
   </div>
 </template>
 
 <script setup lang="ts">
-import { computed, onMounted } from 'vue'
+import { computed, onMounted, ref, reactive, watch } from 'vue'
+import { ElMessage } from 'element-plus'
 import { useUserStore } from '../../store/user'
+import { userApi } from '../../api'
 import BackNav from '../../components/BackNav.vue'
 
 const userStore = useUserStore()
 const user = computed(() => userStore.user)
 
+const showEditProfile = ref(false)
+const showChangePassword = ref(false)
+const saving = ref(false)
+const profileForm = reactive({ username: '', email: '' })
+const passwordForm = reactive({ old_password: '', new_password: '', confirm_password: '' })
+
+watch(() => userStore.user, (u) => {
+  if (u) {
+    profileForm.username = u.username || ''
+    profileForm.email = u.email || ''
+  }
+}, { immediate: true })
+
+async function saveProfile() {
+  saving.value = true
+  try {
+    await userApi.updateProfile(profileForm)
+    ElMessage.success('资料已更新')
+    showEditProfile.value = false
+    await userStore.fetchProfile()
+  } catch (err: any) {
+    ElMessage.error(err.response?.data?.error || '更新失败')
+  } finally {
+    saving.value = false
+  }
+}
+
+async function changePassword() {
+  if (passwordForm.new_password !== passwordForm.confirm_password) {
+    ElMessage.warning('两次密码不一致')
+    return
+  }
+  if (passwordForm.new_password.length < 6) {
+    ElMessage.warning('密码至少6位')
+    return
+  }
+  saving.value = true
+  try {
+    await userApi.changePassword({ old_password: passwordForm.old_password, new_password: passwordForm.new_password })
+    ElMessage.success('密码已修改')
+    showChangePassword.value = false
+    Object.assign(passwordForm, { old_password: '', new_password: '', confirm_password: '' })
+  } catch (err: any) {
+    ElMessage.error(err.response?.data?.error || '修改失败')
+  } finally {
+    saving.value = false
+  }
+}
+
 const roleMap: Record<string, string> = {
   admin: '管理员',
   supplier: '供应商',