<fix>[zbs]: refresh snapshot size by timer and manual query

[zstack-robot-2]

Add external primary storage snapshot size query support so manual
snapshot size refresh can fetch the latest ZBS snapshot usedSize from
the agent. XInfini and Expon keep returning the stored DB snapshot size.

Refresh related snapshot sizes before updating volume actual size in
single-volume and batch active-volume size sync paths. This lets the
periodic VolumeSizeTracker update ZBS snapshot usedSize when it scans
active volumes, and keeps manual volume size refresh using the same
snapshot refresh flow.

Test: git diff --check
Test: mvn -pl storage,plugin/zbs,plugin/xinfini,plugin/expon -am -DskipTests compile
Test: mvn -pl storage,plugin/zbs,plugin/xinfini,plugin/expon -am -DskipTests package

Verified:

• New test environment with management node 115.190.186.186 and ZBS
  storage nodes 172.24.193.131 / 172.24.195.92 / 172.24.251.24.
• zstack-cli SyncVolumeSize uuid=85c6477eaf844df3bf7b989dc46d5ab3
  triggers snapshot size refresh before volume size refresh, and the
  management node calls /zbs/primarystorage/snapshot/getsize on the ZBS
  agent.

Resolves: ZSTAC-67903

sync from gitlab !10356

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📥 Commits

Reviewing files that changed from the base of the PR and between d22b42d and fec68a9.

📒 Files selected for processing (21)

• header/src/main/java/org/zstack/header/storage/addon/primary/BatchStatsSpec.java
• header/src/main/java/org/zstack/header/storage/addon/primary/PrimaryStorageControllerSvc.java
• header/src/main/java/org/zstack/header/storage/primary/StorageResourceStats.java
• header/src/main/java/org/zstack/header/storage/primary/VolumeSnapshotCapability.java
• header/src/main/java/org/zstack/header/storage/snapshot/VolumeSnapshotStats.java
• header/src/main/java/org/zstack/header/volume/BatchSyncVolumeSizeOnPrimaryStorageMsg.java
• header/src/main/java/org/zstack/header/volume/BatchSyncVolumeSizeOnPrimaryStorageReply.java
• header/src/main/java/org/zstack/header/volume/VolumeStats.java
• plugin/ceph/src/main/java/org/zstack/storage/ceph/primary/CephPrimaryStorageBase.java
• plugin/expon/src/main/java/org/zstack/expon/ExponStorageController.java
• plugin/localstorage/src/main/java/org/zstack/storage/primary/local/LocalStorageBase.java
• plugin/nfsPrimaryStorage/src/main/java/org/zstack/storage/primary/nfs/NfsPrimaryStorage.java
• plugin/sharedMountPointPrimaryStorage/src/main/java/org/zstack/storage/primary/smp/SMPPrimaryStorageBase.java
• plugin/xinfini/src/main/java/org/zstack/xinfini/XInfiniStorageController.java
• plugin/zbs/src/main/java/org/zstack/storage/zbs/ZbsStorageController.java
• simulator/simulatorImpl/src/main/java/org/zstack/simulator/storage/primary/SimulatorPrimaryStorage.java
• storage/src/main/java/org/zstack/storage/addon/primary/ExternalPrimaryStorage.java
• storage/src/main/java/org/zstack/storage/snapshot/VolumeSnapshotSizeSyncHelper.java
• storage/src/main/java/org/zstack/storage/volume/VolumeBase.java
• storage/src/main/java/org/zstack/storage/volume/VolumeManagerImpl.java
• test/src/test/groovy/org/zstack/test/integration/storage/primary/addon/zbs/ZbsPrimaryStorageCase.groovy

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