fix: 修复ComfyUI SDK的cargo check和clippy警告

- 修复ComfyUIError中WebSocket变体过大的问题，使用Box包装
- 添加自定义From实现处理Box包装的WebSocket错误
- 修复所有格式化字符串警告，使用内联格式化
- 移除无用的类型转换（reqwest::Error::from）
- 修复代码质量问题：
  - 简化if语句嵌套
  - 使用?操作符替代显式错误处理
  - 优化map迭代方式
  - 使用is_some_and替代map_or

修复内容:
- 44个clippy警告全部解决
- 所有测试通过
- cargo check --lib 无错误无警告

cargos/comfyui-sdk/utils/error_handling.rs

@@ -43,7 +43,7 @@ where
                 last_error = Some(error);
                 
                 if attempt < config.max_attempts {
-                    log::warn!("Attempt {} failed, retrying in {:?}", attempt, delay);
+                    log::warn!("Attempt {attempt} failed, retrying in {delay:?}");
                     sleep(delay).await;
                     
                     // Exponential backoff
@@ -68,7 +68,7 @@ pub fn is_retryable_error(error: &ComfyUIError) -> bool {
             // Retry on network errors, timeouts, and 5xx status codes
             reqwest_error.is_timeout() ||
             reqwest_error.is_connect() ||
-            reqwest_error.status().map_or(false, |status| status.is_server_error())
+            reqwest_error.status().is_some_and(|status| status.is_server_error())
         }
         ComfyUIError::WebSocket(_) => true, // Most WebSocket errors are retryable
         ComfyUIError::Connection(_) => true,
@@ -101,7 +101,7 @@ where
                 last_error = Some(error);
                 
                 if attempt < config.max_attempts {
-                    log::warn!("Attempt {} failed with retryable error, retrying in {:?}", attempt, delay);
+                    log::warn!("Attempt {attempt} failed with retryable error, retrying in {delay:?}");
                     sleep(delay).await;
                     
                     // Exponential backoff
@@ -130,8 +130,7 @@ where
     match tokio::time::timeout(timeout, operation).await {
         Ok(result) => result,
         Err(_) => Err(ComfyUIError::timeout(format!(
-            "Operation timed out after {:?}",
-            timeout
+            "Operation timed out after {timeout:?}"
         ))),
     }
 }
@@ -144,7 +143,7 @@ pub trait ErrorContext<T> {
 impl<T> ErrorContext<T> for Result<T> {
     fn with_context(self, context: &str) -> Result<T> {
         self.map_err(|error| {
-            ComfyUIError::new(format!("{}: {}", context, error))
+            ComfyUIError::new(format!("{context}: {error}"))
         })
     }
 }