[PS] Migrate ProviderHub module to autorest v4

[JoyerJin]

Description

Mandatory Checklist

• Please choose the target release of Azure PowerShell. (⚠️Target release is a different concept from API readiness. Please click below links for details.)

  • General release
  • Public preview
  • Private preview
  • Engineering build
  • No need for a release

• Check this box to confirm: I have read the Submitting Changes section of CONTRIBUTING.md and reviewed the following information:

• SHOULD update ChangeLog.md file(s) appropriately
  • Update src/{{SERVICE}}/{{SERVICE}}/ChangeLog.md.
    • A snippet outlining the change(s) made in the PR should be written under the ## Upcoming Release header in the past tense.
  • Should not change ChangeLog.md if no new release is required, such as fixing test case only.
• SHOULD regenerate markdown help files if there is cmdlet API change. Instruction
• SHOULD have proper test coverage for changes in pull request.
• SHOULD NOT adjust version of module manually in pull request

[azure-client-tools-bot-prd]

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[Copilot]

Pull Request Overview

Migrate the ProviderHub PowerShell module to Autorest v4 by updating documentation, scripts, and metadata to support new parameter-set patterns and simplified type/interface names.

• Introduced new parameter sets (*ViaJsonFilePath, *ViaJsonString, *ViaIdentityProviderRegistrationExpanded) across docs and cmdlets
• Replaced long-form Api20201120.* type references with simplified interfaces (I*)
• Updated README directives for Autorest v4 and refreshed AssemblyInfo metadata

Reviewed Changes

Copilot reviewed 102 out of 102 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/ProviderHub/ProviderHub.Autorest/docs/*.md	Expanded syntax sections, added JSON/identity parameter sets, updated types
src/ProviderHub/ProviderHub.Autorest/custom/*.ps1	Added new parameter-set attributes, deprecate DefaultProfile, update mapping logic
src/ProviderHub/ProviderHub.Autorest/README.md	Refined Autorest v4 directive variants
src/ProviderHub/ProviderHub.Autorest/Properties/AssemblyInfo.cs	Introduced assembly metadata and version info
src/ProviderHub/ProviderHub.Autorest/docs/Az.ProviderHub.md	Updated module GUID and cmdlet summaries

Comments suppressed due to low confidence (2)

src/ProviderHub/ProviderHub.Autorest/custom/Remove-AzProviderHubSku.ps1:68

• The parameter set name 'DeleteViaIdentityResourcetypeRegistration' uses lowercase 't' in 'Resourcetype'. For consistency, rename it to 'DeleteViaIdentityResourceTypeRegistration'.

[Parameter(ParameterSetName='DeleteViaIdentityResourcetypeRegistration', Mandatory)]

src/ProviderHub/ProviderHub.Autorest/docs/Az.ProviderHub.md:5

• The Help Version (1.0.0.0) does not align with the AssemblyInfo version (0.3.1). Consider synchronizing these versions for consistency.

Help Version: 1.0.0.0

[Copilot]

The -JsonString parameter block is missing a 'Parameter Sets' entry. Add 'Parameter Sets: ManifestViaJsonString' to match the other parameter definitions.