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/api/endpoints/providers.ts

@@ -9,13 +9,32 @@ import type {
 } from './types'
 
 /**
- * 获取 Providers 摘要（包含 Endpoints 统计）
+ * 获取 Providers 摘要（分页）
  */
-export async function getProvidersSummary(): Promise<ProviderWithEndpointsSummary[]> {
-  return dedupedRequest('providers:summary', async () => {
-    const response = await client.get<ProviderWithEndpointsSummary[]>('/api/admin/providers/summary')
-    return response.data
-  })
+export interface ProviderSummaryQuery {
+  page?: number
+  page_size?: number
+  search?: string
+  status?: string
+  api_format?: string
+  model_id?: string
+}
+
+export interface ProviderSummaryPageResponse {
+  total: number
+  page: number
+  page_size: number
+  items: ProviderWithEndpointsSummary[]
+}
+
+export async function getProvidersSummary(
+  params: ProviderSummaryQuery = {},
+): Promise<ProviderSummaryPageResponse> {
+  const response = await client.get<ProviderSummaryPageResponse>(
+    '/api/admin/providers/summary',
+    { params },
+  )
+  return response.data
 }
 
 /**