[Proposal] Improve the usability of Dubbo

## Describe the proposal

Dubbo currently has many functions, and most of these functions are not very user-friendly in terms of how to use them and how to troubleshoot problems. Do we currently have any good way to solve this problem?

No files, tests, or entry points are named. Start by reading the proposal and identifying the specific usability or troubleshooting problem to address; done would require a defined, scoped improvement with clear acceptance criteria, which this issue does not provide.

Written by the indexing model from the issue text.