fix(gateway): 修复 local finalize 与 usage 聚合相关测试失败

- 修正内存 usage 仓库的时间单位处理，恢复 stats/monitoring/dashboard/wallet/pool 聚合结果
- 允许 openai:compact 走 CLI 响应转换与本地 finalize cross-format 路径
- 更新 cross-format 测试夹具，显式启用 enable_format_conversion
- 调整 failover 测试优先级，消除候选平局导致的顺序不稳定
- 补齐 ai_pipeline 架构断言所需导入并清理残留 runtime 空目录

apps/aether-gateway/src/ai_pipeline/conversion/mod.rs

@@ -77,7 +77,7 @@ mod tests {
         );
         assert_eq!(
             sync_cli_response_conversion_kind("claude:cli", "openai:compact"),
-            None
+            Some(SyncCliResponseConversionKind::ToOpenAIFamilyCli)
         );
         assert_eq!(
             sync_cli_response_conversion_kind("openai:compact", "claude:cli"),

apps/aether-gateway/src/ai_pipeline/planner/candidate_affinity.rs

@@ -1,5 +1,7 @@
 use tracing::warn;
 
+use aether_scheduler_core::SchedulerMinimalCandidateSelectionCandidate;
+
 use crate::ai_pipeline::transport::resolve_transport_proxy_snapshot;
 use crate::ai_pipeline::{
     GatewayAuthApiKeySnapshot, GatewayProviderTransportSnapshot, PlannerAppState,
@@ -9,7 +11,6 @@ use crate::scheduler::config::{read_scheduler_ordering_config, SchedulerOrdering
 use aether_scheduler_core::{
     build_scheduler_affinity_cache_key_for_api_key_id, compare_candidates_by_priority_mode,
     requested_capability_priority_for_candidate, SchedulerAffinityTarget,
-    SchedulerMinimalCandidateSelectionCandidate,
 };
 
 const PLANNER_SCHEDULER_AFFINITY_MAX_ENTRIES: usize = 10_000;