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.

examples/trading_client/src/main.rs

@@ -0,0 +1,59 @@
+use sol_trade_sdk::{
+    common::{AnyResult, PriorityFee, TradeConfig},
+    swqos::{SwqosConfig, SwqosRegion},
+    SolanaTrade,
+};
+use solana_sdk::{commitment_config::CommitmentConfig, signature::Keypair};
+use std::sync::Arc;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let _ = test_create_solana_trade_client().await?;
+    println!("Successfully created SolanaTrade client!");
+    Ok(())
+}
+
+/// Create SolanaTrade client
+/// Initializes a new SolanaTrade client with configuration
+async fn test_create_solana_trade_client() -> AnyResult<SolanaTrade> {
+    println!("Creating SolanaTrade client...");
+
+    let payer = Keypair::new();
+    let rpc_url = "https://mainnet.helius-rpc.com/?api-key=xxxxxx".to_string();
+
+    println!("rpc_url: {}", rpc_url);
+
+    let swqos_configs = create_swqos_configs(&rpc_url);
+    let trade_config = create_trade_config(rpc_url, swqos_configs);
+
+    let solana_trade_client = SolanaTrade::new(Arc::new(payer), trade_config).await;
+    println!("SolanaTrade client created successfully!");
+
+    Ok(solana_trade_client)
+}
+
+fn create_swqos_configs(rpc_url: &str) -> Vec<SwqosConfig> {
+    vec![
+        // First parameter is UUID, pass empty string if no UUID
+        SwqosConfig::Jito("your uuid".to_string(), SwqosRegion::Frankfurt),
+        SwqosConfig::NextBlock("your api_token".to_string(), SwqosRegion::Frankfurt),
+        SwqosConfig::Bloxroute("your api_token".to_string(), SwqosRegion::Frankfurt),
+        SwqosConfig::ZeroSlot("your api_token".to_string(), SwqosRegion::Frankfurt),
+        SwqosConfig::Temporal("your api_token".to_string(), SwqosRegion::Frankfurt),
+        // Add tg official customer https://t.me/FlashBlock_Official to get free FlashBlock key
+        SwqosConfig::FlashBlock("your api_token".to_string(), SwqosRegion::Frankfurt),
+        // Add tg official customer https://t.me/node1_me to get free Node1 key
+        SwqosConfig::Node1("your api_token".to_string(), SwqosRegion::Frankfurt),
+        SwqosConfig::Default(rpc_url.to_string()),
+    ]
+}
+
+fn create_trade_config(rpc_url: String, swqos_configs: Vec<SwqosConfig>) -> TradeConfig {
+    TradeConfig {
+        rpc_url,
+        commitment: CommitmentConfig::confirmed(),
+        priority_fee: PriorityFee::default(),
+        swqos_configs,
+        lookup_table_key: None,
+    }
+}