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

crates/aether-admin/src/observability/monitoring.rs

@@ -229,6 +229,7 @@ pub fn build_admin_monitoring_cache_provider_delete_success_response(
     .into_response()
 }
 
+#[allow(clippy::too_many_arguments)]
 pub fn build_admin_monitoring_trace_provider_stats_payload_response(
     provider_id: String,
     total_attempts: usize,
@@ -313,6 +314,7 @@ pub fn build_admin_monitoring_trace_request_candidate_payload(
     })
 }
 
+#[allow(clippy::too_many_arguments)]
 pub fn build_admin_monitoring_system_status_payload_response(
     timestamp: chrono::DateTime<chrono::Utc>,
     total_users: u64,

crates/aether-admin/src/observability/usage.rs

@@ -371,6 +371,7 @@ pub fn admin_usage_aggregation_by_provider_json(
     usage: &[StoredRequestUsageAudit],
     limit: usize,
 ) -> Value {
+    #[allow(clippy::type_complexity)]
     let mut grouped: BTreeMap<String, (u64, u64, u64, u64, f64, f64, u64, u64)> = BTreeMap::new();
     for item in usage {
         let key = item
@@ -458,6 +459,7 @@ pub fn admin_usage_aggregation_by_api_format_json(
     usage: &[StoredRequestUsageAudit],
     limit: usize,
 ) -> Value {
+    #[allow(clippy::type_complexity)]
     let mut grouped: BTreeMap<String, (u64, u64, u64, u64, f64, f64, u64)> = BTreeMap::new();
     for item in usage {
         let key = item
@@ -1069,6 +1071,7 @@ pub fn build_admin_usage_detail_payload(
     payload
 }
 
+#[allow(clippy::too_many_arguments)]
 pub fn build_admin_usage_replay_plan_response(
     item: &StoredRequestUsageAudit,
     target_provider: &StoredProviderCatalogProvider,