[improvement](cloud) Propagate compute group id to BE thrift payloads

[deardeng]

What problem does this PR solve?

Issue Number: N/A

Related PR: None

Problem Summary: Add cloud_compute_group_id to cloud-to-BE related thrift structs so the compute group id can be propagated through heartbeat, warm up cache, and replica metadata payloads.

Release note

None

Check List (For Author)

• Test: No need to test (thrift schema update only; no runtime logic changes in this commit)
• Behavior changed: Yes (thrift payloads can now carry cloud_compute_group_id to BE)
• Does this need documentation: No

What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

Release note

None

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.

Check List (For Reviewer who merge this PR)

• Confirm the release note
• Confirm test cases
• Confirm document
• Add branch pick label

[Thearas]

Thank you for your contribution to Apache Doris.
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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]

Cloud UT Coverage Report

Increment line coverage 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	78.48% (1798/2291)
Line Coverage	64.09% (32268/50345)
Region Coverage	65.07% (16246/24967)
Branch Coverage	55.61% (8687/15620)

[hello-stephen]

FE Regression Coverage Report

Increment line coverage 0.00% (0/63) 🎉
Increment coverage report
Complete coverage report

[hello-stephen]

BE UT Coverage Report

Increment line coverage 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	53.03% (20135/37969)
Line Coverage	36.59% (189402/517680)
Region Coverage	32.83% (146991/447716)
Branch Coverage	33.98% (64365/189421)

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 100% (0/0) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	73.51% (27334/37183)
Line Coverage	57.20% (295226/516096)
Region Coverage	54.40% (245794/451848)
Branch Coverage	56.09% (106576/190003)