[Feature]: Support proxy users in spark terminal

[link3280]

Description

We should support proxy users in the spark terminal to improve multi-tenancy experience.the

Use case/motivation

No response

Describe the solution

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Subtasks

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Related issues

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Are you willing to submit a PR?

• [X] Yes I am willing to submit a PR!

Code of Conduct

• [X] I agree to follow this project's Code of Conduct