feat: add examples and enhance MEV protection services

This commit adds comprehensive examples for various trading operations including:
- PumpFun copy and sniper trading
- Bonk copy and sniper trading
- PumpSwap trading
- Raydium CPMM and AMM V4 trading
- Middleware system demonstration
- Event subscription

Enhanced MEV protection services with FlashBlock and Node1 integration.
Updated instruction modules for bonk, pumpswap, and raydium_cpmm.
Improved SWQOS modules for better transaction handling.

src/swqos/bloxroute.rs

@@ -92,7 +92,10 @@ impl BloxrouteClient {
         let start_time: Instant = Instant::now();
         match poll_transaction_confirmation(&self.rpc_client, signature).await {
             Ok(_) => (),
-            Err(_) => (),
+            Err(e) => {
+                println!(" bloxroute{}确认失败: {:?}", trade_type, start_time.elapsed());
+                return Err(e);
+            },
         }
 
         println!(" bloxroute{}确认: {:?}", trade_type, start_time.elapsed());

src/swqos/flashblock.rs

@@ -92,7 +92,10 @@ impl FlashBlockClient {
         let start_time: Instant = Instant::now();
         match poll_transaction_confirmation(&self.rpc_client, signature).await {
             Ok(_) => (),
-            Err(_) => (),
+            Err(e) => {
+                println!(" FlashBlock{}确认失败: {:?}", trade_type, start_time.elapsed());
+                return Err(e);
+            },
         }
 
         println!(" FlashBlock{}确认: {:?}", trade_type, start_time.elapsed());

src/swqos/jito.rs

@@ -108,7 +108,10 @@ impl JitoClient {
         let start_time: Instant = Instant::now();
         match poll_transaction_confirmation(&self.rpc_client, signature).await {
             Ok(_) => (),
-            Err(_) => (),
+            Err(e) => {
+                println!(" jito{}确认失败: {:?}", trade_type, start_time.elapsed());
+                return Err(e);
+            },
         }
 
         println!(" jito{}确认: {:?}", trade_type, start_time.elapsed());

src/swqos/nextblock.rs

@@ -89,7 +89,10 @@ impl NextBlockClient {
         let start_time: Instant = Instant::now();
         match poll_transaction_confirmation(&self.rpc_client, signature).await {
             Ok(_) => (),
-            Err(_) => (),
+            Err(e) => {
+                println!(" nextblock{}确认失败: {:?}", trade_type, start_time.elapsed());
+                return Err(e);
+            },
         }
 
         println!(" nextblock{}确认: {:?}", trade_type, start_time.elapsed());

src/swqos/node1.rs

@@ -177,7 +177,10 @@ impl Node1Client {
         let start_time: Instant = Instant::now();
         match poll_transaction_confirmation(&self.rpc_client, signature).await {
             Ok(_) => (),
-            Err(_) => (),
+            Err(e) => {
+                println!(" node1{}确认失败: {:?}", trade_type, start_time.elapsed());
+                return Err(e);
+            },
         }
 
         println!(" node1{}确认: {:?}", trade_type, start_time.elapsed());

src/swqos/solana_rpc.rs

@@ -30,7 +30,10 @@ impl SwqosClientTrait for SolRpcClient {
         let start_time = Instant::now();
         match poll_transaction_confirmation(&self.rpc_client, signature).await {
             Ok(_) => (),
-            Err(_) => (),
+            Err(e) => {
+                println!(" rpc{}确认失败: {:?}", trade_type, start_time.elapsed());
+                return Err(e);
+            },
         }
         println!(" signature: {:?}", signature);
         println!(" rpc{}确认: {:?}", trade_type, start_time.elapsed());

src/swqos/temporal.rs

@@ -98,7 +98,10 @@ impl TemporalClient {
         let start_time: Instant = Instant::now();
         match poll_transaction_confirmation(&self.rpc_client, signature).await {
             Ok(_) => (),
-            Err(_) => (),
+            Err(e) => {
+                println!(" nozomi{}确认失败: {:?}", trade_type, start_time.elapsed());
+                return Err(e);
+            },
         }
 
         println!(" nozomi{}确认: {:?}", trade_type, start_time.elapsed());

src/swqos/zeroslot.rs

@@ -99,7 +99,10 @@ impl ZeroSlotClient {
         let start_time: Instant = Instant::now();
         match poll_transaction_confirmation(&self.rpc_client, signature).await {
             Ok(_) => (),
-            Err(_) => (),
+            Err(e) => {
+                println!(" 0slot{}确认失败: {:?}", trade_type, start_time.elapsed());
+                return Err(e);
+            },
         }
 
         println!(" 0slot{}确认: {:?}", trade_type, start_time.elapsed());