feat: refactor seed optimization to global configuration in v3.2.0

- Remove open_seed_optimize parameter from TradeBuyParams and TradeSellParams structs
- Add global use_seed_optimize configuration in TradeConfig with default value true
- Add create_wsol_ata_on_startup configuration in TradeConfig with default value true
- Implement automatic WSOL ATA creation and verification on SDK initialization
- Add with_wsol_ata_config() builder method to TradeConfig for custom WSOL settings
- Update all examples to remove open_seed_optimize parameter usage
- Update documentation (README, TRADING_PARAMETERS) to reflect new configuration approach
- Upgrade package version from 3.1.7 to 3.2.0

Breaking Changes:
- open_seed_optimize parameter removed from trade parameters (now global setting)
- Seed optimization is now enabled by default for all operations

src/common/types.rs

@@ -6,6 +6,11 @@ pub struct TradeConfig {
     pub rpc_url: String,
     pub swqos_configs: Vec<SwqosConfig>,
     pub commitment: CommitmentConfig,
+    /// Whether to create WSOL ATA on startup (default: true)
+    /// If true, SDK will check WSOL ATA on initialization and create if not exists
+    pub create_wsol_ata_on_startup: bool,
+    /// Whether to use seed optimization for all ATA operations (default: true)
+    pub use_seed_optimize: bool,
 }
 
 impl TradeConfig {
@@ -14,7 +19,26 @@ impl TradeConfig {
         swqos_configs: Vec<SwqosConfig>,
         commitment: CommitmentConfig,
     ) -> Self {
-        Self { rpc_url, swqos_configs, commitment }
+        println!("🔧 TradeConfig create_wsol_ata_on_startup default value: true");
+        println!("🔧 TradeConfig use_seed_optimize default value: true");
+        Self {
+            rpc_url,
+            swqos_configs,
+            commitment,
+            create_wsol_ata_on_startup: true,  // 默认：启动时检查并创建
+            use_seed_optimize: true,           // 默认：使用seed优化
+        }
+    }
+
+    /// Create a TradeConfig with custom WSOL ATA settings
+    pub fn with_wsol_ata_config(
+        mut self,
+        create_wsol_ata_on_startup: bool,
+        use_seed_optimize: bool,
+    ) -> Self {
+        self.create_wsol_ata_on_startup = create_wsol_ata_on_startup;
+        self.use_seed_optimize = use_seed_optimize;
+        self
     }
 }