Storage - STG102 IPv6

[browndav-msft]

• Refactor duplicate code in BuilderHelpers and BlobUrlParts so that they use storageImplUtils.getAccountNameFromHost()
• Left original getAccountName with single param, created overload with ServiceSubDomain
• Created static values for URI_SUBDOMAINS in common Constants class

[Copilot]

Pull request overview

This PR refactors storage endpoint parsing to centralize account-name extraction in StorageImplUtils, including support for suffix variants like -secondary, -dualstack, and -ipv6. It also introduces shared constants for service subdomains and adds/updates tests to validate the new parsing behavior.

Changes:

• Replaced duplicated “account name from host” parsing in Queue and File Share builders and in BlobUrlParts with StorageImplUtils.getAccountNameFromHost(...).
• Added StorageImplUtils.getAccountName(URL, serviceSubDomain) overload plus a new getAccountNameFromHost(host, serviceSubDomain) helper that strips known endpoint suffixes.
• Added Constants.<Service>.URI_SUBDOMAIN constants and new/updated tests for the suffix parsing behavior.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
sdk/storage/azure-storage-queue/.../BuilderHelper.java	Uses StorageImplUtils.getAccountNameFromHost for queue endpoint parsing.
sdk/storage/azure-storage-file-share/.../BuilderHelper.java	Uses StorageImplUtils.getAccountNameFromHost for file endpoint parsing and account-name extraction.
sdk/storage/azure-storage-common/.../StorageImplUtilsTests.java	Adds parameterized tests to validate service-subdomain-based parsing and suffix stripping.
sdk/storage/azure-storage-common/.../StorageImplUtils.java	Adds overload/helper to extract account name from host and strip known suffixes.
sdk/storage/azure-storage-common/.../Constants.java	Adds shared service subdomain constants (Constants.Blob/File/Queue/Table/Dfs.URI_SUBDOMAIN).
sdk/storage/azure-storage-blob/src/test/java/BlobUrlPartsTests.java	Adds a new test validating BlobUrlParts.parse() behavior for suffix variants.

[browndav-msft]

This is used by both Blob and Datalake. Added the IllegalException at the end, but could remove if you think we should.