Bump the dotnet group with 1 update

[dependabot]

Updated Microsoft.Extensions.AI.OpenAI from 10.3.0 to 10.4.1.

Release notes

Sourced from Microsoft.Extensions.AI.OpenAI's releases.

10.4.1

This release of the Microsoft.Extensions.AI packages adds new experimental APIs for Realtime client sessions and Text-to-Speech, along with OpenTelemetry and middleware improvements.

Packages in this release

Package	Version
Microsoft.Extensions.AI.Abstractions	10.4.1
Microsoft.Extensions.AI	10.4.1
Microsoft.Extensions.AI.OpenAI	10.4.1

Experimental API Changes

New Experimental APIs

• New experimental API: Realtime Client Sessions #​7285 and #​7399
• New experimental API: Text-to-Speech Client #​7381

Changes to Experimental APIs

• Hosted File Download Stream: write-path methods now explicitly throw NotSupportedException #​7394

What's Changed

AI

• Add ITextToSpeechClient abstraction, middleware, and OpenAI implementation #​7381 by @​stephentoub
• Realtime Client Proposal #​7285 by @​tarekgh
• Add VoiceActivityDetection options to realtime session abstractions #​7399 by @​tarekgh
• Make UriContent mediaType parameter optional with inference from URI file extension #​7398 by @​stephentoub (co-authored by @​Copilot)
• Emit gen_ai.client.operation.exception via ILogger LoggerMessage on OpenTelemetry instrumentation classes #​7379 by @​stephentoub (co-authored by @​Copilot)
• Support invoke_workflow as an equivalent parent span to invoke_agent in FunctionInvokingChatClient #​7382 by @​stephentoub (co-authored by @​Copilot)
• Make HostedFileDownloadStream explicitly read-only #​7394 by @​stephentoub (co-authored by @​Copilot)

Documentation Updates

• Document JSON schema derivation for return types in AIFunctionFactory #​7400 by @​stephentoub (co-authored by @​Copilot)

Test Improvements

• Fix test warnings #​7369 by @​jozkee
• Add tests for JSON deserialization of serializable types #​7373 by @​stephentoub (co-authored by @​Copilot)

Repository Infrastructure Updates

• Update Package Validation Baseline to 10.4.0 #​7389 by @​jeffhandley (co-authored by @​Copilot)
• Update ModelContextProtocol libraries to version 1.0.0 #​7340 by @​stephentoub (co-authored by @​Copilot)

Acknowledgements

• @​eiriktsarpalis @​ericstj @​CodeBlanch @​lmolkova @​adamsitnik @​joperezr reviewed pull requests
  ... (truncated)

10.4.0

This release advances the AI abstractions with new hosted file, web search, and reasoning content types, stabilizes MCP and tool approval APIs, adds streaming latency metrics to OpenTelemetry instrumentation, and delivers bug fixes across caching, data ingestion, and resource monitoring.

Experimental API Changes

Now Stable

• MCP Server Tool Content and Function Call Approval APIs are now stable (previously MEAI001) #​7299
• FakeLogCollector.GetLogsAsync(CancellationToken) is now stable (previously EXTEXP0003) #​7332

New Experimental APIs

• New experimental AddExtendedHttpClientLogging overloads with wrapHandlersPipeline parameter (EXTEXP0013) #​7231

Removed Experimental APIs

• AI Tool Reduction experimental APIs removed (was experimental under MEAI001) #​7353

What's Changed

AI

• Add IHostedFileClient and friends #​7269 by @​stephentoub
• Add web search tool call content #​7276 by @​stephentoub (co-authored by @​Copilot)
• Surface OpenAI-compatible reasoning_content as TextReasoningContent #​7295 by @​stephentoub
• MCP/Approvals/Tool Contents stabilization #​7299 by @​jozkee
• Implement time_to_first_chunk and time_per_output_chunk streaming metrics in OpenTelemetryChatClient #​7325 by @​stephentoub (co-authored by @​Copilot)
• Add openai.api.type telemetry attribute to OpenAI IChatClient implementations #​7316 by @​stephentoub (co-authored by @​Copilot)
• Update OpenTelemetry Gen AI semantic conventions to v1.40 #​7322 by @​stephentoub (co-authored by @​Copilot)
• Fix tool definitions emission regardless of sensitivity setting #​7346 by @​stephentoub (co-authored by @​Copilot)
• Honor [Required] attribute in AI function parameter JSON schema generation #​7272 by @​stephentoub (co-authored by @​Copilot)
• AddAIContentType automatically registers content type against every base in the inheritance chain up to AIContent #​7358 by @​jozkee (co-authored by @​Copilot)
• Auto-mark server-handled FunctionCallContent as InformationalOnly #​7314 by @​stephentoub (co-authored by @​Copilot)
• Map ReasoningEffort.None and ExtraHigh to none and xhigh in OpenAI IChatClient implementations #​7319 by @​stephentoub (co-authored by @​Copilot)
• Handle DynamicMethod reflection limitations in AIFunctionFactory #​7287 by @​stephentoub (co-authored by @​Copilot)
• Fix Activity.Current nulled during streaming tool invocation #​7321 by @​flaviocdc (co-authored by @​Copilot)
• Handle FunctionCallOutputResponseItem in streaming response conversion #​7307 by @​stephentoub (co-authored by @​Copilot)
• Fix serialization of response continuation tokens #​7356 by @​stephentoub
• Remove AI Tool Reduction experimental APIs #​7353 by @​stephentoub (co-authored by @​Copilot)
• Update OpenAI to 2.9.1 #​7349 by @​stephentoub

Telemetry and Observability

• Introduce support for the Gauge metric type #​7203 by @​rainsxng
• Update logging source generator to support generic methods #​7331 by @​svick (co-authored by @​Copilot)
• Update logging source generator to match runtime PR #​124589 (ref readonly/params/scoped) #​7333 by @​svick (co-authored by @​Copilot)
• Promote FakeLogCollector.GetLogsAsync(CancellationToken) from experimental to stable #​7332 by @​Demo30
• Remove obsolete CS1591 warning suppression from generated file preamble #​7308 by @​luissena

HTTP Resilience and Diagnostics

... (truncated)

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[dotnet-policy-service]

Approved; this PR will merge when all status checks pass.