refactor(runtime): 优化管理端摘要查询与维护聚合链路

- 为 provider catalog key 和 video task 列表增加 summary/page 查询与排序能力，减少列表场景读取重字段
- 将多处 SQL 结果读取改为流式收集，降低 `fetch_all` 的内存占用
- 把日/小时统计、钱包日用量等维护任务改为数据库侧 `CTE + upsert` 聚合
- 修复视频任务轮询更新时从本地 snapshot 回填稀疏字段，避免 `prompt` 和请求体信息丢失

apps/aether-gateway/src/maintenance/runtime/tests.rs

@@ -29,7 +29,7 @@ use super::{
     usage_cleanup_window, wallet_daily_usage_aggregation_target, AppState, DbMaintenanceRunSummary,
     FailedPendingUsageRow, GatewayDataState, ProxyUpgradeRolloutProbeConfig, StalePendingUsageRow,
     UsageCleanupSettings, DELETE_STALE_WALLET_DAILY_USAGE_LEDGERS_SQL,
-    SELECT_STALE_PENDING_USAGE_BATCH_SQL, SELECT_WALLET_DAILY_USAGE_AGGREGATION_ROWS_SQL,
+    SELECT_STALE_PENDING_USAGE_BATCH_SQL, UPSERT_WALLET_DAILY_USAGE_LEDGER_SQL,
     UPDATE_FAILED_VOID_STALE_USAGE_SQL, USAGE_CLEANUP_HOUR, USAGE_CLEANUP_MINUTE,
     WALLET_DAILY_USAGE_AGGREGATION_HOUR, WALLET_DAILY_USAGE_AGGREGATION_MINUTE,
 };
@@ -82,9 +82,9 @@ async fn spawn_pool_monitor_worker_skips_when_postgres_unavailable() {
 #[test]
 fn wallet_daily_usage_queries_use_settlement_snapshots_for_wallet_identity() {
     assert!(
-        SELECT_WALLET_DAILY_USAGE_AGGREGATION_ROWS_SQL.contains("JOIN usage_settlement_snapshots")
+        UPSERT_WALLET_DAILY_USAGE_LEDGER_SQL.contains("JOIN usage_settlement_snapshots")
     );
-    assert!(SELECT_WALLET_DAILY_USAGE_AGGREGATION_ROWS_SQL
+    assert!(UPSERT_WALLET_DAILY_USAGE_LEDGER_SQL
         .contains("usage_settlement_snapshots.wallet_id"));
     assert!(DELETE_STALE_WALLET_DAILY_USAGE_LEDGERS_SQL.contains("JOIN usage_settlement_snapshots"));
     assert!(DELETE_STALE_WALLET_DAILY_USAGE_LEDGERS_SQL