feat: 增强 provider query 端点选择逻辑，支持 openai:responses 格式与 key 级 api_formats 过滤

- provider_query_selected_fetch_endpoints 支持按 key.api_formats 过滤可用端点
- 端点选择增加 endpoint_supports_rust_models_fetch 检查
- 支持优先级列表之外的自定义 api_format 端点
- 新增 openai:responses 端点的 provider query 集成测试
- 各 crate 补充缺失的 tracing instrument 和小修正
- 前端 Pool 管理页面补充状态逻辑

frontend/src/views/admin/PoolManagement.vue

@@ -1201,6 +1201,7 @@ import {
 import {
   buildPoolManagementQueryPatch,
   readPoolManagementViewState,
+  resolvePoolManagementPageAfterLoad,
   type PoolManagementViewState,
   writePoolManagementViewState,
 } from '@/features/pool/utils/poolManagementState'
@@ -1790,6 +1791,15 @@ async function loadKeys() {
       status,
     })
     if (requestId !== keysRequestId || selectedProviderId.value !== providerId) return
+    const resolvedPage = resolvePoolManagementPageAfterLoad({
+      requestedPage: page,
+      pageSize: pageSizeValue,
+      total: nextPage.total,
+    })
+    if (resolvedPage !== page) {
+      currentPage.value = resolvedPage
+      return
+    }
     keyPage.value = nextPage
   } catch (err) {
     if (requestId !== keysRequestId || selectedProviderId.value !== providerId) return