feat(table): 表格排序与搜索改为后端处理

frontend/src/views/admin/UsageView.vue

@@ -100,7 +100,16 @@
           </div>
         </template>
       </UsageFilters>
-      <UsageTable :data="usageLogs" :loading="loading" :columns="visibleColumns" @userClick="handleUserClick" />
+      <UsageTable
+        :data="usageLogs"
+        :loading="loading"
+        :columns="visibleColumns"
+        :server-side-sort="true"
+        :default-sort-key="'created_at'"
+        :default-sort-order="'desc'"
+        @sort="handleSort"
+        @userClick="handleUserClick"
+      />
       <Pagination v-if="pagination.total > 0" :page="pagination.page" :total="pagination.total" :page-size="pagination.page_size" @update:page="handlePageChange" @update:pageSize="handlePageSizeChange" />
     </div>
   </AppLayout>
@@ -219,6 +228,10 @@ const defaultRange = getLast24HoursRangeDates()
 const startDate = ref(defaultRange.start); const endDate = ref(defaultRange.end)
 const filters = ref<AdminUsageQueryParams>({ user_id: undefined, model: undefined, group_id: undefined, request_type: undefined, billing_type: null, start_date: startDate.value, end_date: endDate.value })
 const pagination = reactive({ page: 1, page_size: getPersistedPageSize(), total: 0 })
+const sortState = reactive({
+  sort_by: 'created_at',
+  sort_order: 'desc' as 'asc' | 'desc'
+})
 
 const getSingleQueryValue = (value: string | null | Array<string | null> | undefined): string | undefined => {
   if (Array.isArray(value)) return value.find((item): item is string => typeof item === 'string' && item.length > 0)
@@ -265,12 +278,31 @@ const onDateRangeChange = (range: { startDate: string; endDate: string; preset:
   applyFilters()
 }
 
+const buildUsageListParams = (
+  page: number,
+  pageSize: number,
+  exactTotal: boolean
+): AdminUsageQueryParams => {
+  const requestType = filters.value.request_type
+  const legacyStream = requestType ? requestTypeToLegacyStream(requestType) : filters.value.stream
+  return {
+    page,
+    page_size: pageSize,
+    exact_total: exactTotal,
+    ...filters.value,
+    stream: legacyStream === null ? undefined : legacyStream,
+    sort_by: sortState.sort_by,
+    sort_order: sortState.sort_order
+  }
+}
+
 const loadLogs = async () => {
   abortController?.abort(); const c = new AbortController(); abortController = c; loading.value = true
   try {
-    const requestType = filters.value.request_type
-    const legacyStream = requestType ? requestTypeToLegacyStream(requestType) : filters.value.stream
-    const res = await adminAPI.usage.list({ page: pagination.page, page_size: pagination.page_size, exact_total: false, ...filters.value, stream: legacyStream === null ? undefined : legacyStream }, { signal: c.signal })
+    const res = await adminAPI.usage.list(
+      buildUsageListParams(pagination.page, pagination.page_size, false),
+      { signal: c.signal }
+    )
     if(!c.signal.aborted) { usageLogs.value = res.items; pagination.total = res.total }
   } catch (error: any) { if(error?.name !== 'AbortError') console.error('Failed to load usage logs:', error) } finally { if(abortController === c) loading.value = false }
 }
@@ -412,6 +444,12 @@ const resetFilters = () => {
 }
 const handlePageChange = (p: number) => { pagination.page = p; loadLogs() }
 const handlePageSizeChange = (s: number) => { pagination.page_size = s; pagination.page = 1; loadLogs() }
+const handleSort = (key: string, order: 'asc' | 'desc') => {
+  sortState.sort_by = key
+  sortState.sort_order = order
+  pagination.page = 1
+  loadLogs()
+}
 const cancelExport = () => exportAbortController?.abort()
 const openCleanupDialog = () => { cleanupDialogVisible.value = true }
 const getRequestTypeLabel = (log: AdminUsageLog): string => {
@@ -443,9 +481,10 @@ const exportToExcel = async () => {
     ]
     const ws = XLSX.utils.aoa_to_sheet([headers])
     while (true) {
-      const requestType = filters.value.request_type
-      const legacyStream = requestType ? requestTypeToLegacyStream(requestType) : filters.value.stream
-      const res = await adminUsageAPI.list({ page: p, page_size: 100, exact_total: true, ...filters.value, stream: legacyStream === null ? undefined : legacyStream }, { signal: c.signal })
+      const res = await adminUsageAPI.list(
+        buildUsageListParams(p, 100, true),
+        { signal: c.signal }
+      )
       if (c.signal.aborted) break; if (p === 1) { total = res.total; exportProgress.total = total }
       const rows = (res.items || []).map((log: AdminUsageLog) => [
         log.created_at, log.user?.email || '', log.api_key?.name || '', log.account?.name || '', log.model,