feat: Add block metadata event support

- Implement BlockMetaEvent and SDKSystemEventParser
- Support block metadata subscription and processing
- Optimize event handling with separate tokio tasks
- Add commitment parameter support
- Upgrade version to 0.1.3

src/main.rs

@@ -2,6 +2,7 @@ use solana_streamer_sdk::{
     match_event,
     streaming::{
         event_parser::{
+            core::traits::BlockMetaEvent,
             protocols::{
                 bonk::{BonkPoolCreateEvent, BonkTradeEvent},
                 pumpfun::{PumpFunCreateTokenEvent, PumpFunTradeEvent},
@@ -43,7 +44,7 @@ async fn test_grpc() -> Result<(), Box<dyn std::error::Error>> {
     ];
 
     println!("开始监听事件，按 Ctrl+C 停止...");
-    grpc.subscribe_events(protocols, None, None, None, callback)
+    grpc.subscribe_events(protocols, None, None, None, None, None, callback)
         .await?;
 
     Ok(())
@@ -73,6 +74,9 @@ async fn test_shreds() -> Result<(), Box<dyn std::error::Error>> {
 fn create_event_callback() -> impl Fn(Box<dyn UnifiedEvent>) {
     |event: Box<dyn UnifiedEvent>| {
         match_event!(event, {
+            BlockMetaEvent => |e: BlockMetaEvent| {
+                println!("BlockMetaEvent: {:?}", e.slot);
+            },
             BonkPoolCreateEvent => |e: BonkPoolCreateEvent| {
                 println!("BonkPoolCreateEvent: {:?}", e.base_mint_param.symbol);
             },