[Refactor] Move broker manager and stream load context handle out of …

[alvin-phoenix-ai]

…runtime

Why I'm doing:

What I'm doing:

Fixes #issue

What type of PR is this:

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
  • This pr needs auto generate documentation
• This is a backport pr

Bugfix cherry-pick branch check:

• I have checked the version labels which the pr will be auto-backported to the target branch
  • 4.1
  • 4.0
  • 3.5

[CelerData-Reviewer]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Breezy!

Reviewed commit: d7c852afee

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• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

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[CelerData-Reviewer]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Hooray!

Reviewed commit: de136050a1

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[github-actions]

[Java-Extensions Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[FE Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[BE Incremental Coverage Report]

❌ fail : 61 / 83 (73.49%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	be/src/fs/fs_broker.cpp	0	1	00.00%	[53]
🔵	be/src/platform/broker_mgr.cpp	26	45	57.78%	[45, 46, 47, 48, 49, 56, 57, 59, 60, 62, 63, 66, 67, 68, 69, 71, 79, 81, 83]
🔵	be/src/runtime/exec_env.cpp	5	7	71.43%	[388, 389]
🔵	be/src/platform/platform_env.h	1	1	100.00%	[]
🔵	be/src/exec/pipeline/fragment_executor.cpp	10	10	100.00%	[]
🔵	be/src/compute_env/load/stream_load_context_handle.cpp	16	16	100.00%	[]
🔵	be/src/platform/platform_env.cpp	3	3	100.00%	[]