[Enhancement]: Please support keyword jumps in the SQL execution plan

### Description

Please support keyword jumps in the SQL execution plan.

For example, by clicking on the "EXPLAIN" keyword, Jump to this web page at https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000002017067

<img width="1884" height="1426" alt="Image" src="https://github.com/user-attachments/assets/91876223-5bd2-442d-bd7a-f0b61f8710b3" />