Generate .NET SDK for Microsoft.Insights metric alerts 2024-03-01-preview

[violetVo]

Contributing to the Azure SDK

Please see our CONTRIBUTING.md if you are not familiar with contributing to this repository or have questions.

For specific information about pull request etiquette and best practices, see this section.

[github-actions]

API Change Check

APIView identified API level changes in this PR and created the following API reviews

Azure.ResourceManager.Monitor

[Copilot]

Pull Request Overview

This PR updates the Azure Monitor Metric Alerts API from the stable 2018-03-01 version to the preview 2024-03-01-preview version. The update introduces support for PromQL-based query alert rules and makes several breaking changes to the API.

• Updates API version from 2018-03-01 to 2024-03-01-preview
• Adds new PromQL criteria types (PromQLCriteria, StaticPromQLCriteria, DynamicPromQLCriteria) for Prometheus-based alerting
• Adds support for managed service identity, custom properties, action properties, and resolve configuration
• Changes WindowSize from required to optional in MetricAlertData constructor
• Updates all example references in test samples to use the new API version

Reviewed Changes

Copilot reviewed 5 out of 56 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
autorest.md	Updates API specification reference to preview version
MetricAlertsRestOperations.cs	Updates default API version constant
MetricAlertsStatusRestOperations.cs	Updates default API version constant
MetricAlertData.cs	Changes constructor signature to make WindowSize optional, adds new properties
MetricAlertData.Serialization.cs	Updates serialization to handle WindowSize as nullable, adds new properties
MetricAlertPatch.cs	Adds identity, resolve configuration, custom properties, and action properties
Various Models	Adds new PromQL criteria classes and supporting models
Sample files	Updates example references to preview API version, demonstrates new PromQL functionality
API surface files	Reflects all public API changes including breaking changes
ApiCompatBaseline.txt	Documents breaking change for WindowSize property
Customized/MetricAlertData.cs	Adds overload constructor to maintain backward compatibility