Update UnbrandedGeneratorVersion to 1.0.0-alpha.20260213.1

[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.20260213.1.

Details

• TypeSpec commit that triggered this PR: microsoft/typespec@8adea5c

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
• Regenerated SDK libraries using the unbranded emitter via dotnet msbuild /t:GenerateCode

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

[Copilot]

Pull request overview

This PR updates the UnbrandedGeneratorVersion to 1.0.0-alpha.20260213.1, bringing in improvements from the upstream TypeSpec generator. The update includes a significant enhancement to pagination URI handling in generated RestClient code, changing from a manual path append approach to using the standard .NET Uri constructor for proper RFC 3986-compliant URI resolution.

Changes:

• Updated UnbrandedGeneratorVersion property from 1.0.0-alpha.20260212.5 to 1.0.0-alpha.20260213.1
• Updated @typespec/http-client-csharp dependency version in package configuration files
• Regenerated SDK code with improved pagination URI handling pattern

Reviewed changes

Copilot reviewed 3 out of 16 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
eng/Packages.Data.props	Updated UnbrandedGeneratorVersion property to new version
eng/packages/http-client-csharp/package.json	Updated @typespec/http-client-csharp dependency version
eng/packages/http-client-csharp/package-lock.json	Updated package lock file with new dependency version and integrity hash
eng/http-client-csharp-emitter-package.json	Updated emitter package dependency version
eng/http-client-csharp-emitter-package-lock.json	Updated emitter package lock with new dependency version and integrity hash
sdk/ai/Azure.AI.Projects/src/Generated/*.RestClient.cs	Improved pagination URI handling in CreateNext*Request methods using Uri constructor instead of manual path appending
eng/packages/http-client-csharp/generator/TestProjects/Local/Basic-TypeSpec/src/Generated/BasicTypeSpecClient.RestClient.cs	Applied same pagination URI handling improvements to test project

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

[JoshLove-msft]

/check-enforcer override