refactor: Improve error handling and borrowing in item services

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/modes/server/api/item.rs

@@ -269,17 +269,17 @@ async fn handle_as_meta_response_with_metadata(
 pub async fn handle_post_item(
     State(_state): State<AppState>,
 ) -> Result<Json<ApiResponse<ItemInfo>>, StatusCode> {
-    
+        
     // This is a simplified implementation
     // In a real implementation, you'd need to properly parse multipart/form-data
     // or JSON payload with the item data
-    
+        
     let response = ApiResponse::<ItemInfo> {
         success: false,
         data: None,
         error: Some("POST /api/item/ not yet implemented".to_string()),
     };
-    
+        
     Ok(Json(response))
 }