Fixes #5138

Changes proposed in this request
This pull request includes several changes to the Microsoft.Identity.Client library to support claims and capabilities in managed identity requests. The most important changes involve adding a new Claims property, modifying request creation methods to include this property, and implementing a new method to apply claims and capabilities to requests.

Support for Claims and Capabilities:

• src/client/Microsoft.Identity.Client/ApiConfig/Parameters/AcquireTokenForManagedIdentityParameters.cs: Added a new Claims property to the AcquireTokenForManagedIdentityParameters class.

• src/client/Microsoft.Identity.Client/Internal/Requests/ManagedIdentityAuthRequest.cs: Updated the ExecuteAsync method to set the Claims property in _managedIdentityParameters.

Request Creation and Handling:

• src/client/Microsoft.Identity.Client/ManagedIdentity/AbstractManagedIdentity.cs: Modified the CreateRequest method to accept AcquireTokenForManagedIdentityParameters and added the ApplyClaimsAndCapabilities method to set request parameters based on claims and capabilities. [1] [2] [3]

• Updated various managed identity source classes (AppServiceManagedIdentitySource, AzureArcManagedIdentitySource, CloudShellManagedIdentitySource, ImdsManagedIdentitySource, MachineLearningManagedIdentitySource, ServiceFabricManagedIdentitySource) to use the new CreateRequest method signature and apply claims and capabilities. [1] [2] [3] [4] [5] [6]

Testing Enhancements:

• tests/Microsoft.Identity.Test.Common/Core/Mocks/MockHttpManagerExtensions.cs: Enhanced the AddManagedIdentityMockHandler method to include parameters for enabling capabilities and claims, and updated the BuildMockHandlerForManagedIdentitySource method accordingly. [1] [2]

Testing
unit tests

Performance impact
none

Documentation

• All relevant documentation is updated.