Add missing Microsoft.Orleans.Streaming NuGet package requirement to Orleans 7.0 streaming quickstart (#49374)

* Initial plan

* Add Microsoft.Orleans.Streaming NuGet package requirement to Orleans 7.0 streaming quickstart

Co-authored-by: IEvangelist <7679720+IEvangelist@users.noreply.github.com>

* Add ai-usage frontmatter to Orleans streaming quickstart

Co-authored-by: meaghanlewis <10103121+meaghanlewis@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: IEvangelist <7679720+IEvangelist@users.noreply.github.com>
Co-authored-by: meaghanlewis <10103121+meaghanlewis@users.noreply.github.com>

Author: 3 people

docs/orleans/streaming/streams-quick-start.md

@@ -4,6 +4,7 @@ description: Learn from the streaming quickstart in .NET Orleans.
 ms.date: 03/30/2025
 ms.topic: quickstart
 zone_pivot_groups: orleans-version
+ai-usage: ai-assisted
 ---
 
 # Orleans streaming quickstart
@@ -16,6 +17,8 @@ This guide shows you a quick way to set up and use Orleans Streams. To learn mor
 
 In this guide, you use a memory-based stream that uses grain messaging to send stream data to subscribers. You use the in-memory storage provider to store lists of subscriptions. Using memory-based mechanisms for streaming and storage is intended only for local development and testing, not for production environments.
 
+Orleans streaming requires the [Microsoft.Orleans.Streaming](https://www.nuget.org/packages/Microsoft.Orleans.Streaming) NuGet package. This package provides the streaming functionality for both the client and server, including the `AddMemoryStreams` extension method used in this guide.
+
 On the silo, where `silo` is an <xref:Orleans.Hosting.ISiloBuilder>, call <xref:Orleans.Hosting.SiloBuilderExtensions.AddMemoryStreams%2A>:
 
 ```csharp