<fix>[kvm]: ZSTAC-85800 sync command timeout

[ZStack-Robot]

Summary

• Sync explicitly configured KVMHostHttpCallMsg timeout into HasThreadContext command task context before command JSON serialization.
• Keeps rollback cleanup callers from leaking stale API deadlines into kvmagent task daemons.

Dependency

• Pair with premium MR from the same source branch: fix/ZSTAC-85800-volume-cache-rollback-cleanup@@2.

Testing

• rtk git -C zstack diff --check upstream/5.5.28..HEAD
• VolumeCacheCase not completed: initial MR-ref run failed because the wrongly-created MR exposed no refs/merge-requests/*/head; branch-based container verification reached the standard test-premium --package precompile path, but was stopped after the heavy dependency build stalled before the case started.

Resolves: ZSTAC-85800

sync from gitlab !10406

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Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between b31fe63 and 725854a.

📒 Files selected for processing (1)

• plugin/kvm/src/main/java/org/zstack/kvm/KVMHostHttpCallMsg.java

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Could not fetch remote config from http://open.zstack.ai:20001/code-reviews/zstack-cloud.yaml: TimeoutError: The operation was aborted due to timeout

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• Commit unit tests in branch sync/haidong.pang/fix/ZSTAC-85800-volume-cache-rollback-cleanup@@2

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