feat: require durable_nonce for multiple swqos transactions

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "sol-trade-sdk"
-version = "3.1.0"
+version = "3.1.1"
 edition = "2021"
 authors = [
     "William <byteblock6@gmail.com>",

README.md

@@ -87,14 +87,14 @@ Add the dependency to your `Cargo.toml`:
 
 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.1.0" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.1.1" }
 ```
 
 ### Use crates.io
 
 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = "3.1.0"
+sol-trade-sdk = "3.1.1"
 ```
 
 ## 🛠️ Usage Examples

README_CN.md

@@ -87,14 +87,14 @@ git clone https://github.com/0xfnzero/sol-trade-sdk
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.1.0" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.1.1" }
 ```
 
 ### 使用 crates.io
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = "3.1.0"
+sol-trade-sdk = "3.1.1"
 ```
 
 ## 🛠️ 使用示例

src/trading/core/async_executor.rs

@@ -150,6 +150,10 @@ pub async fn execute_parallel(
         return Err(anyhow!("No available gas fee strategy configs"));
     }
 
+    if task_configs.len() > 1 && durable_nonce.is_none() {
+        return Err(anyhow!("Multiple swqos transactions require durable_nonce to be set.",));
+    }
+
     // Task preparation completed
 
     let collector = Arc::new(ResultCollector::new(task_configs.len()));