Migrate Resource Health tools to new tool design

[alzimmermsft]

What does this PR do?

Migrates Resource Health tools to new design where Register and Bind options are based on Option attributes.

GitHub issue number?

[Link to the GitHub issue this PR addresses]

Pre-merge Checklist

• Required for All PRs
  • Read contribution guidelines
  • PR title clearly describes the change
  • Commit history is clean with descriptive messages (cleanup guide)
  • Added comprehensive tests for new/modified functionality
  • Created a changelog entry if the change falls among the following: new feature, bug fix, UI/UX update, breaking change, or updated dependencies. Follow the changelog entry guide
• For MCP tool changes:
  • One tool per PR: This PR adds or modifies only one MCP tool for faster review cycles
  • Updated servers/Azure.Mcp.Server/README.md and/or servers/Fabric.Mcp.Server/README.md documentation
  • Validate README.md changes running the script ./eng/scripts/Process-PackageReadMe.ps1. See Package README
  • For new or modified tool descriptions, ran ToolDescriptionEvaluator and obtained a score of 0.4 or more and a top 3 ranking for all related test prompts
  • For tools with new names, including new tools or renamed tools, update consolidated-tools.json
  • For renamed tools, follow the Tool Rename Checklist and tag the PR with the breaking-change label
  • For new tools associated with Azure services or publicly available tools/APIs/products, add URL to documentation in the PR description
• Extra steps for Azure MCP Server tool changes:
  • Updated command list in servers/Azure.Mcp.Server/docs/azmcp-commands.md
  • Ran ./eng/scripts/Update-AzCommandsMetadata.ps1 to update tool metadata in azmcp-commands.md (required for CI)
  • Updated test prompts in servers/Azure.Mcp.Server/docs/e2eTestPrompts.md
  • 👉 For Community (non-Microsoft team member) PRs:
    • Security review: Reviewed code for security vulnerabilities, malicious code, or suspicious activities before running tests (crypto mining, spam, data exfiltration, etc.)
    • Manual tests run: added comment /azp run mcp - pullrequest - live to run Live Test Pipeline

[Copilot]

Pull request overview

Migrates the Azure Resource Health toolset to the newer command/options design that uses [Option] / [OptionContainer] attributes and the two-generic SubscriptionCommand<TOptions, TResult> pattern, removing legacy System.CommandLine option registration/binding code.

Changes:

• Converted Resource Health commands to the new SubscriptionCommand<TOptions, TResult> execution/validation pipeline (options POCOs + ValidateOptions).
• Replaced legacy option-definition classes and options inheritance with flat, attribute-decorated options models.
• Updated unit tests to use SubscriptionCommandUnitTestsBase and adjusted expectations for the new binding/validation flow.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tools/Azure.Mcp.Tools.ResourceHealth/src/Commands/BaseResourceHealthCommand.cs	Updates Resource Health command base to the new SubscriptionCommand<TOptions, TResult> pattern.
tools/Azure.Mcp.Tools.ResourceHealth/src/Commands/AvailabilityStatus/AvailabilityStatusGetCommand.cs	Converts command execution to typed options + typed result model.
tools/Azure.Mcp.Tools.ResourceHealth/src/Commands/ServiceHealthEvents/ServiceHealthEventsListCommand.cs	Converts command execution/validation to typed options + ValidateOptions.
tools/Azure.Mcp.Tools.ResourceHealth/src/Options/AvailabilityStatus/AvailabilityStatusGetOptions.cs	Replaces legacy options inheritance with attribute-based options POCO.
tools/Azure.Mcp.Tools.ResourceHealth/src/Options/ServiceHealthEvents/ServiceHealthEventsListOptions.cs	Replaces legacy options inheritance with attribute-based options POCO.
tools/Azure.Mcp.Tools.ResourceHealth/src/Services/ResourceHealthService.cs	Removes unused logger dependency from the service constructor.
tools/Azure.Mcp.Tools.ResourceHealth/src/ResourceHealthSetup.cs	Keeps tool registrations aligned with the updated command/service constructors.
tools/Azure.Mcp.Tools.ResourceHealth/src/Azure.Mcp.Tools.ResourceHealth.csproj	Removes direct System.CommandLine dependency and normalizes project reference path.
tools/Azure.Mcp.Tools.ResourceHealth/src/ResourceHealthOptionDefinitions.cs	Deletes legacy System.CommandLine option definitions (superseded by [Option]).
tools/Azure.Mcp.Tools.ResourceHealth/src/Options/BaseResourceHealthOptions.cs	Deletes legacy options base class (superseded by flat POCOs).
tools/Azure.Mcp.Tools.ResourceHealth/src/GlobalUsings.cs	Removes tool-local System.CommandLine global using (no longer needed).
tools/Azure.Mcp.Tools.ResourceHealth/tests/Azure.Mcp.Tools.ResourceHealth.Tests/AvailabilityStatus/AvailabilityStatusGetCommandTests.cs	Updates tests to the subscription-aware unit test base and new validation behavior.
tools/Azure.Mcp.Tools.ResourceHealth/tests/Azure.Mcp.Tools.ResourceHealth.Tests/ServiceHealthEvents/ServiceHealthEventsListCommandTests.cs	Updates tests to the subscription-aware unit test base and removes env-dependent skips.
tools/Azure.Mcp.Tools.ResourceHealth/tests/Azure.Mcp.Tools.ResourceHealth.Tests/Services/ResourceHealthServiceSsrfValidationTests.cs	Updates service construction to match the new constructor signature.
servers/Azure.Mcp.Server/changelog-entries/1782414691894.yaml	Adds a breaking-change entry describing the tool surface change.