User Task Management in Elsa v3

### **Description**
I am exploring Elsa Workflow v3 and have a few questions regarding user task management:

1. **User Tasks List**: Is there a built-in page or interface in Elsa v3 where users can log in, view their assigned tasks, and take actions such as approving or rejecting tasks?

2. **Custom Implementation**: If such a page is not available out-of-the-box, do I need to implement this functionality in my application? If so, could you provide guidance on how to achieve this?

3. **APIs for Task Management**: Are there APIs available to:
- Retrieve the current task assigned to a user?
- List the stages of a workflow?

### **Additional Context**
I am looking to integrate user task management (e.g., approval/rejection workflows) into my application using Elsa v3. Any documentation, examples, or guidance on how to implement this would be greatly appreciated.

Thank you in advance for your assistance!