feat(admin): 将用户管理的用量统计改为全量累计口径 (#314)

- 新增按用户 ID 批量汇总 usage 的后端查询
- 在 /api/admin/users 中返回 request_count 和 total_tokens
- 移除用户管理页面额外的 usage 聚合请求
- 为管理端用户列表补充累计统计回归测试

apps/aether-gateway/src/handlers/admin/request/users.rs

@@ -568,6 +568,14 @@ impl<'a> AdminAppState<'a> {
             .await
     }
 
+    pub(crate) async fn summarize_usage_totals_by_user_ids(
+        &self,
+        user_ids: &[String],
+    ) -> Result<Vec<aether_data_contracts::repository::usage::StoredUsageUserTotals>, GatewayError>
+    {
+        self.app.summarize_usage_totals_by_user_ids(user_ids).await
+    }
+
     pub(crate) async fn list_non_admin_export_users(
         &self,
     ) -> Result<Vec<aether_data::repository::users::StoredUserExportRow>, GatewayError> {

apps/aether-gateway/src/handlers/admin/users/lifecycle/reads.rs

@@ -54,6 +54,12 @@ pub(in super::super) async fn build_admin_list_users_response(
         .into_iter()
         .filter_map(|wallet| wallet.user_id.clone().map(|user_id| (user_id, wallet)))
         .collect::<BTreeMap<_, _>>();
+    let usage_totals_by_user_id = state
+        .summarize_usage_totals_by_user_ids(&user_ids)
+        .await?
+        .into_iter()
+        .map(|item| (item.user_id.clone(), item))
+        .collect::<BTreeMap<_, _>>();
 
     let mut payload = Vec::with_capacity(paged_rows.len());
     for row in paged_rows {
@@ -61,6 +67,7 @@ pub(in super::super) async fn build_admin_list_users_response(
         let unlimited = wallet_by_user_id
             .get(&row.id)
             .is_some_and(|wallet| wallet.limit_mode.eq_ignore_ascii_case("unlimited"));
+        let usage_totals = usage_totals_by_user_id.get(&row.id);
         payload.push(json!({
             "id": row.id,
             "email": row.email,
@@ -77,6 +84,8 @@ pub(in super::super) async fn build_admin_list_users_response(
             "last_login_at": format_optional_datetime_iso8601(
                 auth.as_ref().and_then(|user| user.last_login_at),
             ),
+            "request_count": usage_totals.map(|item| item.request_count).unwrap_or_default(),
+            "total_tokens": usage_totals.map(|item| item.total_tokens).unwrap_or_default(),
         }));
     }