feat: Provider 摘要 API 改为服务端分页，支持搜索和筛选

- 后端 /summary 接口新增 page/page_size/search/status/api_format/model_id 参数
- 新增 ProviderSummaryPageResponse 分页响应模型
- 前端 useProviderFilters 从客户端筛选改为构建服务端查询参数
- ProviderManagement 通过 watch queryParams 实现分页/筛选联动，搜索 debounce 300ms
- PriorityManagementDialog 改为对话框打开时自行加载全量 providers
- 其他使用方(StandaloneKeyFormDialog/UserFormDialog/ReplayDialog/ModelManagement)适配新接口

frontend/src/features/api-keys/components/StandaloneKeyFormDialog.vue

@@ -401,12 +401,12 @@ const { isEditMode, handleDialogUpdate, handleCancel } = useFormDialog({
 // 加载选项数据
 async function loadAccessRestrictionOptions() {
   try {
-    const [providersData, modelsData, formatsData] = await Promise.all([
-      getProvidersSummary(),
+    const [providersResponse, modelsData, formatsData] = await Promise.all([
+      getProvidersSummary({ page_size: 9999 }),
       getGlobalModels({ limit: 1000, is_active: true }),
       adminApi.getApiFormats()
     ])
-    providers.value = providersData
+    providers.value = providersResponse.items
     globalModels.value = modelsData.models || []
     allApiFormats.value = formatsData.formats?.map((f: { value: string }) => f.value) || []
   } catch (err) {

frontend/src/features/providers/components/PriorityManagementDialog.vue

@@ -472,7 +472,7 @@ import Badge from '@/components/ui/badge.vue'
 import { useToast } from '@/composables/useToast'
 import { parseApiError } from '@/utils/errorParser'
 import { updateProvider, updateProviderKey } from '@/api/endpoints'
-import type { ProviderWithEndpointsSummary } from '@/api/endpoints'
+import { getProvidersSummary, type ProviderWithEndpointsSummary } from '@/api/endpoints'
 import { adminApi } from '@/api/admin'
 import { batchQueryBalance, type ActionResultResponse, type BalanceInfo } from '@/api/providerOps'
 import { API_FORMAT_SHORT } from '@/api/endpoints/types'
@@ -508,7 +508,6 @@ interface KeyWithMeta {
 
 const props = defineProps<{
   modelValue: boolean
-  providers: ProviderWithEndpointsSummary[]
 }>()
 
 const emit = defineEmits<{
@@ -663,7 +662,7 @@ function normalizeRateMultipliers(
 
 const providerById = computed(() => {
   const map = new Map<string, ProviderWithEndpointsSummary>()
-  props.providers.forEach((provider) => {
+  sortedProviders.value.forEach((provider) => {
     map.set(provider.id, provider)
   })
   return map
@@ -671,7 +670,7 @@ const providerById = computed(() => {
 
 const providerIdByName = computed(() => {
   const map = new Map<string, string>()
-  props.providers.forEach((provider) => {
+  sortedProviders.value.forEach((provider) => {
     if (!map.has(provider.name)) {
       map.set(provider.name, provider.id)
     }
@@ -686,7 +685,7 @@ function resolveProviderId(key: Pick<KeyWithMeta, 'provider_id' | 'provider_name
 
 const poolProviderIds = computed(() => {
   const set = new Set<string>()
-  props.providers.forEach((provider) => {
+  sortedProviders.value.forEach((provider) => {
     if (provider.pool_advanced) {
       set.add(provider.id)
     }
@@ -835,16 +834,10 @@ function sortProvidersByActiveAndPriority(providers: ProviderWithEndpointsSummar
   })
 }
 
-// 监听 props.providers 变化
-watch(() => props.providers, (newProviders) => {
-  if (newProviders) {
-    sortedProviders.value = sortProvidersByActiveAndPriority(newProviders)
-  }
-}, { immediate: true })
-
 // 监听对话框打开
 watch(internalOpen, async (open) => {
   if (open) {
+    await loadAllProviders()
     await loadCurrentPriorityMode()
     await loadKeysByFormat()
     // 异步加载余额数据
@@ -852,6 +845,16 @@ watch(internalOpen, async (open) => {
   }
 })
 
+// 加载全量 providers（优先级管理需要完整列表）
+async function loadAllProviders() {
+  try {
+    const response = await getProvidersSummary({ page: 1, page_size: 9999 })
+    sortedProviders.value = sortProvidersByActiveAndPriority(response.items)
+  } catch {
+    sortedProviders.value = []
+  }
+}
+
 // 加载当前的优先级模式配置
 async function loadCurrentPriorityMode() {
   try {

frontend/src/features/providers/composables/useProviderFilters.ts

@@ -1,5 +1,5 @@
 import { ref, computed, watch } from 'vue'
-import type { ProviderWithEndpointsSummary } from '@/api/endpoints'
+import type { ProviderSummaryQuery } from '@/api/endpoints'
 
 export interface FilterOption {
   value: string
@@ -7,7 +7,6 @@ export interface FilterOption {
 }
 
 export function useProviderFilters(
-  providers: () => ProviderWithEndpointsSummary[],
   globalModels: () => { id: string; name: string }[],
 ) {
   // 搜索与筛选
@@ -33,11 +32,8 @@ export function useProviderFilters(
     { value: 'gemini:cli', label: 'Gemini CLI' },
   ]
 
-  // 动态计算模型筛选选项：只展示当前提供商列表中实际关联的全局模型
   const modelFilters = computed<FilterOption[]>(() => {
-    const usedIds = new Set(providers().flatMap(p => p.global_model_ids || []))
     const items = globalModels()
-      .filter(m => usedIds.has(m.id))
       .map(m => ({ value: m.id, label: m.name }))
       .sort((a, b) => a.label.localeCompare(b.label))
     return [{ value: 'all', label: '全部模型' }, ...items]
@@ -52,68 +48,22 @@ export function useProviderFilters(
     )
   })
 
-  // 筛选后的提供商列表
-  const filteredProviders = computed(() => {
-    let result = [...providers()]
-
-    // 搜索筛选（支持空格分隔的多关键词 AND 搜索）
-    if (searchQuery.value.trim()) {
-      const keywords = searchQuery.value
-        .toLowerCase()
-        .split(/\s+/)
-        .filter(k => k.length > 0)
-      result = result.filter(p => {
-        const searchableText = `${p.name}`.toLowerCase()
-        return keywords.every(keyword => searchableText.includes(keyword))
-      })
-    }
-
-    // 状态筛选
-    if (filterStatus.value !== 'all') {
-      const isActive = filterStatus.value === 'active'
-      result = result.filter(p => p.is_active === isActive)
-    }
-
-    // API 格式筛选
-    if (filterApiFormat.value !== 'all') {
-      result = result.filter(
-        p => p.api_formats && p.api_formats.includes(filterApiFormat.value),
-      )
-    }
-
-    // 模型筛选
-    if (filterModel.value !== 'all') {
-      result = result.filter(
-        p => p.global_model_ids && p.global_model_ids.includes(filterModel.value),
-      )
-    }
-
-    // 排序
-    return result.sort((a, b) => {
-      // 1. 优先显示活跃的提供商
-      if (a.is_active !== b.is_active) {
-        return a.is_active ? -1 : 1
-      }
-      // 2. 按优先级排序
-      if (a.provider_priority !== b.provider_priority) {
-        return a.provider_priority - b.provider_priority
-      }
-      // 3. 按名称排序
-      return a.name.localeCompare(b.name)
-    })
-  })
-
   // 分页
   const currentPage = ref(1)
   const pageSize = ref(20)
+  const total = ref(0)
 
-  const paginatedProviders = computed(() => {
-    const start = (currentPage.value - 1) * pageSize.value
-    const end = start + pageSize.value
-    return filteredProviders.value.slice(start, end)
-  })
+  // 服务端分页查询参数
+  const queryParams = computed<ProviderSummaryQuery>(() => ({
+    page: currentPage.value,
+    page_size: pageSize.value,
+    search: searchQuery.value.trim() || undefined,
+    status: filterStatus.value !== 'all' ? filterStatus.value : undefined,
+    api_format: filterApiFormat.value !== 'all' ? filterApiFormat.value : undefined,
+    model_id: filterModel.value !== 'all' ? filterModel.value : undefined,
+  }))
 
-  // 搜索/筛选时重置分页
+  // 搜索/筛选变化时重置分页到第1页
   watch([searchQuery, filterStatus, filterApiFormat, filterModel], () => {
     currentPage.value = 1
   })
@@ -134,10 +84,10 @@ export function useProviderFilters(
     apiFormatFilters,
     modelFilters,
     hasActiveFilters,
-    filteredProviders,
     currentPage,
     pageSize,
-    paginatedProviders,
+    total,
+    queryParams,
     resetFilters,
   }
 }

frontend/src/features/usage/components/ReplayDialog.vue

@@ -388,8 +388,8 @@ watch(() => props.isOpen, async (isOpen) => {
     showRequestHeaders.value = false
     showResponseHeaders.value = false
     try {
-      const summary = await getProvidersSummary()
-      providers.value = summary
+      const response = await getProvidersSummary({ page_size: 9999 })
+      providers.value = response.items
         .filter(p => p.is_active && p.active_endpoints > 0)
         .map(p => ({ id: p.id, name: p.name }))
     } catch (e) {

frontend/src/features/users/components/UserFormDialog.vue

@@ -536,12 +536,12 @@ const isFormValid = computed(() => {
 // 加载访问控制选项
 async function loadAccessControlOptions(): Promise<void> {
   try {
-    const [providersData, modelsData, formatsData] = await Promise.all([
-      getProvidersSummary(),
+    const [providersResponse, modelsData, formatsData] = await Promise.all([
+      getProvidersSummary({ page_size: 9999 }),
       getGlobalModels({ limit: 1000, is_active: true }),
       adminApi.getApiFormats()
     ])
-    providers.value = providersData
+    providers.value = providersResponse.items
     globalModels.value = modelsData.models || []
     apiFormats.value = formatsData.formats || []
   } catch (err) {