feat: add multi-select batch operations for admin account management (#737)

- Add multi-select functionality with native Naive UI selection column
- Implement batch operations: delete, clear inbox, clear sent items
- Create reusable executeBatchOperation function to eliminate code duplication
- Add error recovery mechanism: failed items remain selected for retry
- Add progress modal with real-time percentage display
- Support smart skip logic: skip addresses with no mails/sent items
- Add i18n support for English and Chinese
- Update CHANGELOG.md with new features

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <noreply@anthropic.com>

frontend/src/views/admin/Account.vue

@@ -1,6 +1,6 @@
 <script setup>
-import { ref, h, onMounted, watch } from 'vue';
-import { NBadge } from 'naive-ui'
+import { ref, h, onMounted, watch, computed } from 'vue';
+import { NBadge, useMessage } from 'naive-ui'
 import { useI18n } from 'vue-i18n'
 
 import { useGlobalState } from '../../store'
@@ -42,6 +42,16 @@ const { t } = useI18n({
             resetPassword: 'Reset Password',
             newPassword: 'New Password',
             passwordResetSuccess: 'Password reset successfully',
+            selectAll: 'Select All of This Page',
+            unselectAll: 'Unselect All',
+            pleaseSelectAddress: 'Please select address',
+            selectedItems: 'Selected',
+            multiDelete: 'Multi Delete',
+            multiDeleteTip: 'Are you sure to delete selected addresses?',
+            multiClearInbox: 'Multi Clear Inbox',
+            multiClearInboxTip: 'Are you sure to clear inbox for selected addresses?',
+            multiClearSentItems: 'Multi Clear Sent Items',
+            multiClearSentItemsTip: 'Are you sure to clear sent items for selected addresses?',
         },
         zh: {
             name: '名称',
@@ -69,6 +79,16 @@ const { t } = useI18n({
             resetPassword: '重置密码',
             newPassword: '新密码',
             passwordResetSuccess: '密码重置成功',
+            selectAll: '全选本页',
+            unselectAll: '取消全选',
+            pleaseSelectAddress: '请选择地址',
+            selectedItems: '已选择',
+            multiDelete: '批量删除',
+            multiDeleteTip: '确定要删除选中的邮箱吗？',
+            multiClearInbox: '批量清空收件箱',
+            multiClearInboxTip: '确定要清空选中邮箱的收件箱吗？',
+            multiClearSentItems: '批量清空发件箱',
+            multiClearSentItemsTip: '确定要清空选中邮箱的发件箱吗？',
         }
     }
 });
@@ -82,6 +102,15 @@ const showResetPassword = ref(false);
 const curResetPasswordAddressId = ref(0);
 const newPassword = ref('');
 
+// Multi-action mode state
+const checkedRowKeys = ref([]);
+const showMultiActionModal = ref(false);
+const multiActionProgress = ref({ percentage: 0, tip: '0/0' });
+const multiActionTitle = ref('');
+
+const selectedCount = computed(() => checkedRowKeys.value.length);
+const showMultiActionBar = computed(() => checkedRowKeys.value.length > 0);
+
 const addressQuery = ref("")
 
 const data = ref([])
@@ -159,6 +188,98 @@ const resetPassword = async () => {
     }
 }
 
+// Multi-action mode functions
+const multiActionSelectAll = () => {
+    checkedRowKeys.value = data.value.map(item => item.id);
+}
+
+const multiActionUnselectAll = () => {
+    checkedRowKeys.value = [];
+}
+
+// 通用批量操作函数
+const executeBatchOperation = async ({
+    shouldSkip = () => false,
+    apiCall,
+    title,
+    operationName = 'operation'
+}) => {
+    try {
+        loading.value = true;
+        const selectedAddresses = data.value.filter((item) =>
+            checkedRowKeys.value.includes(item.id)
+        );
+
+        if (selectedAddresses.length === 0) {
+            message.error(t('pleaseSelectAddress'));
+            return;
+        }
+
+        const failedIds = [];
+        const totalCount = selectedAddresses.length;
+
+        multiActionProgress.value = {
+            percentage: 0,
+            tip: `0/${totalCount}`
+        };
+        multiActionTitle.value = title;
+        showMultiActionModal.value = true;
+
+        for (const [index, address] of selectedAddresses.entries()) {
+            try {
+                if (!shouldSkip(address)) {
+                    await apiCall(address.id);
+                }
+            } catch (error) {
+                console.error(`${operationName} failed for address ${address.id}:`, error);
+                failedIds.push(address.id);
+            }
+            multiActionProgress.value = {
+                percentage: Math.floor((index + 1) / totalCount * 100),
+                tip: `${index + 1}/${totalCount}`
+            };
+        }
+
+        await fetchData();
+        checkedRowKeys.value = failedIds;
+        message.success(t("success"));
+    } catch (error) {
+        message.error(error.message || "error");
+    } finally {
+        loading.value = false;
+    }
+}
+
+const multiActionDeleteAccounts = async () => {
+    await executeBatchOperation({
+        apiCall: (id) => api.adminDeleteAddress(id),
+        title: t('multiDelete') + ' ' + t('success'),
+        operationName: 'Delete'
+    });
+}
+
+const multiActionClearInbox = async () => {
+    await executeBatchOperation({
+        shouldSkip: (address) => address.mail_count <= 0,
+        apiCall: (id) => api.fetch(`/admin/clear_inbox/${id}`, {
+            method: 'DELETE'
+        }),
+        title: t('multiClearInbox') + ' ' + t('success'),
+        operationName: 'ClearInbox'
+    });
+}
+
+const multiActionClearSentItems = async () => {
+    await executeBatchOperation({
+        shouldSkip: (address) => address.send_count <= 0,
+        apiCall: (id) => api.fetch(`/admin/clear_sent_items/${id}`, {
+            method: 'DELETE'
+        }),
+        title: t('multiClearSentItems') + ' ' + t('success'),
+        operationName: 'ClearSentItems'
+    });
+}
+
 const fetchData = async () => {
     try {
         addressQuery.value = addressQuery.value.trim()
@@ -173,12 +294,15 @@ const fetchData = async () => {
             count.value = addressCount;
         }
     } catch (error) {
-        console.log(error)
+        console.error(error);
         message.error(error.message || "error");
     }
 }
 
 const columns = [
+    {
+        type: 'selection'
+    },
     {
         title: "ID",
         key: "id"
@@ -414,13 +538,43 @@ onMounted(async () => {
                 </n-button>
             </template>
         </n-modal>
-        <n-input-group>
+        <n-input-group style="margin-bottom: 10px;">
             <n-input v-model:value="addressQuery" clearable :placeholder="t('addressQueryTip')"
                 @keydown.enter="fetchData" />
             <n-button @click="fetchData" type="primary" tertiary>
                 {{ t('query') }}
             </n-button>
         </n-input-group>
+
+        <n-space v-if="showMultiActionBar" style="margin-bottom: 10px;">
+            <n-button @click="multiActionSelectAll" tertiary>
+                {{ t('selectAll') }}
+            </n-button>
+            <n-button @click="multiActionUnselectAll" tertiary>
+                {{ t('unselectAll') }}
+            </n-button>
+            <n-popconfirm @positive-click="multiActionDeleteAccounts">
+                <template #trigger>
+                    <n-button tertiary type="error">{{ t('multiDelete') }}</n-button>
+                </template>
+                {{ t('multiDeleteTip') }}
+            </n-popconfirm>
+            <n-popconfirm @positive-click="multiActionClearInbox">
+                <template #trigger>
+                    <n-button tertiary type="warning">{{ t('multiClearInbox') }}</n-button>
+                </template>
+                {{ t('multiClearInboxTip') }}
+            </n-popconfirm>
+            <n-popconfirm @positive-click="multiActionClearSentItems">
+                <template #trigger>
+                    <n-button tertiary type="warning">{{ t('multiClearSentItems') }}</n-button>
+                </template>
+                {{ t('multiClearSentItemsTip') }}
+            </n-popconfirm>
+            <n-tag type="info">
+                {{ t('selectedItems') }}: {{ selectedCount }}
+            </n-tag>
+        </n-space>
         <div style="overflow: auto;">
             <div style="display: inline-block;">
                 <n-pagination v-model:page="page" v-model:page-size="pageSize" :item-count="count"
@@ -430,8 +584,21 @@ onMounted(async () => {
                     </template>
                 </n-pagination>
             </div>
-            <n-data-table :columns="columns" :data="data" :bordered="false" embedded />
+            <n-data-table v-model:checked-row-keys="checkedRowKeys" :columns="columns" :data="data" :bordered="false"
+                :row-key="row => row.id" embedded />
         </div>
+
+        <!-- Multi-action progress modal -->
+        <n-modal v-model:show="showMultiActionModal" preset="dialog" :title="multiActionTitle" negative-text="OK">
+            <n-space justify="center">
+                <n-progress type="circle" status="info" :percentage="multiActionProgress.percentage">
+                    <span style="text-align: center">
+                        {{ multiActionProgress.tip }}
+                    </span>
+                </n-progress>
+            </n-space>
+        </n-modal>
+
     </div>
 </template>