Update UnbrandedGeneratorVersion to 1.0.0-alpha.20251031.1

[azure-sdk]

This PR updates the UnbrandedGeneratorVersion property in eng/Packages.Data.props and the @typespec/http-client-csharp dependency in eng/packages/http-client-csharp/package.json to version 1.0.0-alpha.20251031.1.

Details

• TypeSpec commit that triggered this PR: microsoft/typespec@7c648ec

Changes

• Updated eng/Packages.Data.props UnbrandedGeneratorVersion property
• Updated eng/packages/http-client-csharp/package.json dependency version
• Ran npm install to update package-lock.json
• Ran eng/packages/http-client-csharp/eng/scripts/Generate.ps1 to regenerate test projects
• Generated emitter-package.json artifacts using tsp-client

This is an automated PR created by the TypeSpec publish pipeline.

[Copilot]

Pull Request Overview

This PR updates the @typespec/http-client-csharp package from version 1.0.0-alpha.20251030.3 to 1.0.0-alpha.20251031.1. The update includes:

• Package dependency version bumps in package.json and package-lock.json files
• Regenerated test project code models with a new initializedBy field added to client definitions
• Addition of apiVersion method parameters in some Azure client test projects

Reviewed Changes

Copilot reviewed 97 out of 99 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
eng/packages/http-client-csharp/package.json	Updated dependency version
eng/packages/http-client-csharp/package-lock.json	Updated lock file with new package version and integrity hash
eng/http-client-csharp-emitter-package.json	Updated dependency version
eng/http-client-csharp-emitter-package-lock.json	Updated lock file with new package version and integrity hash
eng/Packages.Data.props	Updated UnbrandedGeneratorVersion property
Multiple tspCodeModel.json files	Added initializedBy field to client objects and apiVersion method parameters to some Azure clients

Files not reviewed (2)

• eng/http-client-csharp-emitter-package-lock.json: Language not supported
• eng/packages/http-client-csharp/package-lock.json: Language not supported