perf: Major event processing system refactor for improved performance

src/streaming/grpc/mod.rs

@@ -1,17 +1,15 @@
 // gRPC 相关模块
 pub mod connection;
-pub mod stream_handler;
 pub mod subscription;
 pub mod types;
 
 // 重新导出主要类型
 pub use connection::*;
-pub use stream_handler::*;
 pub use subscription::*;
 pub use types::*;
 
 // 从公用模块重新导出
 pub use crate::streaming::common::{
-    BackpressureConfig, BackpressureStrategy, BatchConfig, ConnectionConfig, MetricsManager,
-    PerformanceMetrics, StreamClientConfig as ClientConfig,
+    BackpressureConfig, BackpressureStrategy, ConnectionConfig, MetricsManager, PerformanceMetrics,
+    StreamClientConfig as ClientConfig,
 };