Migrate vector store docs from Microsoft.SemanticKernel.Connectors.* to CommunityToolkit.VectorData.*

[Copilot]

Migrates all docs/ai/vector-stores documentation and snippets from the deprecated Microsoft.SemanticKernel.Connectors.* packages to CommunityToolkit.VectorData.*, and updates VectorStoreVectorAttribute usage to reflect that Dimensions is now a mandatory constructor argument (dimensions:) rather than a settable property.

Docs

• overview.md: Updated using import, package links, and [VectorStoreVector(Dimensions:)] example. Removed the now-invalid [!NOTE] explaining why "SemanticKernel" appeared in package names.
• define-your-data-model.md: Updated all inline code examples and the parameter table — Dimensions property xref replaced with dimensions constructor argument entry.
• manage-data.md, vector-search.md: Fixed Dimensions: → dimensions: in data model examples.
• how-to/use-vector-stores.md: Updated install command and removed SK disclaimer.
• how-to/build-vector-search-app.md: Updated package names and descriptions in both OpenAI and Azure OpenAI pivots.
• how-to/vector-store-data-ingestion.md: Updated Redis provider link.

Snippets

-using Microsoft.SemanticKernel.Connectors.InMemory;
+using CommunityToolkit.VectorData.InMemory;

-[VectorStoreVector(Dimensions: 384, DistanceFunction = DistanceFunction.CosineSimilarity)]
+[VectorStoreVector(dimensions: 384, DistanceFunction = DistanceFunction.CosineSimilarity)]

• All using Microsoft.SemanticKernel.Connectors.* imports replaced with CommunityToolkit.VectorData.* equivalents (InMemory, Qdrant, Redis).
• All .csproj package references updated to CommunityToolkit.VectorData.* v1.0.0 / 1.*.

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Internal previews

📄 File	🔗 Preview link
docs/ai/vector-stores/define-your-data-model.md	docs/ai/vector-stores/define-your-data-model
docs/ai/vector-stores/how-to/build-vector-search-app.md	docs/ai/vector-stores/how-to/build-vector-search-app
docs/ai/vector-stores/how-to/use-vector-stores.md	docs/ai/vector-stores/how-to/use-vector-stores
docs/ai/vector-stores/how-to/vector-store-data-ingestion.md	docs/ai/vector-stores/how-to/vector-store-data-ingestion
docs/ai/vector-stores/manage-data.md	docs/ai/vector-stores/manage-data
docs/ai/vector-stores/overview.md	docs/ai/vector-stores/overview

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[adamsitnik]

@copilot address my feedback

[Copilot]

@copilot address my feedback

Addressed all feedback in the latest commit:

• Removed --prerelease from all three install command examples (build-vector-search-app.md, use-vector-stores.md, vector-store-data-ingestion.md)
• Pinned CommunityToolkit.VectorData.* package versions to 1.0.0 in both .csproj files
• Removed the explicit Qdrant.Client reference from VectorStoreSnippets.csproj (it's a transitive dependency of CommunityToolkit.VectorData.Qdrant)

[adamsitnik]

@copilot address my feedback

[adamsitnik]

LGTM

[gewarren]

Should/can we replace the link?

[adamsitnik]

I am trying to get this particular document updated in MicrosoftDocs/semantic-kernel-docs#429, but I agree that in the long term we should provide our own list (it would not contain python-specific or deprecated connectors)