<fix>[zbs]: ZSTAC-86663 deactivate Vhost clients before expunge

[zstack-robot-2]

Summary

ZBS Vhost volume expunge can discover an active client whose storage-side source IP is a host extra IP, while the ActiveVolumeClient deactivate path previously returned success without deleting the Vhost bdev. This can leave a residual bdev and cause physical volume deletion to fail with kFileOccupied.

Changes

• Resolve Vhost client IPs against the exact, deduplicated union of KVM management IPs and comma-delimited HostSystemTags.EXTRA_IPS tokens.
• Require exactly one matching KVM host and delegate to the existing HostInventory bdev cleanup path.
• Fail closed for blank, unknown, or ambiguous client IPs so physical volume deletion is blocked.
• Keep CBD and other non-Vhost behavior unchanged.
• Add integration coverage for management IP, extra IP, exact-token matching, ambiguous ownership, and bdev-before-volume deletion ordering.

Testing

• JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 mvn -pl plugin/zbs -am -DskipTests compile
• JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 mvn -pl plugin/zbs -am -DskipTests install
• ZbsVhostVolumeCase: 1 test, 0 failures, 0 errors, 0 skipped
• CI pipeline

Resolves: ZSTAC-86663

sync from gitlab !10501

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Reviewing files that changed from the base of the PR and between 798d455 and cfaf390.

📒 Files selected for processing (2)

• plugin/zbs/src/main/java/org/zstack/storage/zbs/ZbsStorageController.java
• test/src/test/groovy/org/zstack/test/integration/storage/primary/addon/zbs/ZbsVhostVolumeCase.groovy

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