[refactor](cloud) Rename cloud compute group metadata class (#65817)

[deardeng]

pick from #65817
Problem Summary: The FE cloud catalog metadata entity shared the ComputeGroup class name with the resource routing abstraction, making imports and usages ambiguous. Rename the cloud metadata entity to CloudComputeGroupMeta and update all production and unit-test references without changing runtime behavior or persisted metadata.

(cherry picked from commit a9816fa)

What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

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Check List (For Author)

• Test

  • Regression test
  • Unit Test
  • Manual test (add detailed scripts or steps below)
  • No need to test or manual test. Explain why:
    • This is a refactor/code format and no logic has been changed.
    • Previous test can cover this change.
    • No code files have been changed.
    • Other reason

• Behavior changed:

  • No.
  • Yes.

• Does this need documentation?

  • No.
  • Yes.

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• Confirm the release note
• Confirm test cases
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[hello-stephen]

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Please clearly describe your PR:

1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
3. What features were added. Why was this function added?
4. Which code was refactored and why was this part of the code refactored?
5. Which functions were optimized and what is the difference before and after the optimization?

[deardeng]

run buildall

[hello-stephen]

FE UT Coverage Report

Increment line coverage 66.67% (20/30) 🎉
Increment coverage report
Complete coverage report