Cosmos: Update pipeline complex properties

[JoasE]

Sets values for complex properties in the JObject/document of an entity in DocumentSource
Does not create document source for complex types
part of: #37297

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        Fixes #bugnumber

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[Copilot]

Pull request overview

This PR implements support for complex type collections in the Cosmos provider for Entity Framework Core. The changes enable storing, retrieving, and updating complex property collections in Cosmos documents by extending the document pipeline to handle complex types alongside owned entity navigations.

Key Changes:

• Extended DocumentSource to create and update documents for complex properties (both single and collection)
• Removed validation that previously blocked complex type collections in Cosmos
• Refactored GetCurrentProviderValue to an internal extension method for reuse across providers
• Enabled existing test suites for complex collections in Cosmos

Reviewed changes

Copilot reviewed 12 out of 13 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/EFCore.Cosmos/Update/Internal/DocumentSource.cs	Core implementation for creating/updating documents with complex properties and collections using 0-based indexing
src/EFCore.Cosmos/Infrastructure/Internal/CosmosModelValidator.cs	Removed validation error that blocked complex type collections
src/EFCore/Update/UpdateEntryExtensions.cs	Refactored to delegate to internal extension method
src/EFCore/Update/Internal/InternalUpdateEntryExtensions.cs	New file containing internal extension for getting provider values, shared across providers
src/EFCore.Cosmos/Storage/Internal/CosmosDatabaseWrapper.cs	Minor whitespace formatting fix
test/EFCore.Cosmos.FunctionalTests/CosmosComplexTypesTrackingTest.cs	New Cosmos-specific test class with tests for complex collection operations
test/EFCore.Specification.Tests/ComplexTypesTrackingTestBase.cs	Made methods virtual/protected for provider overrides, refactored tests to use helper methods
test/EFCore.Cosmos.Tests/Infrastructure/CosmosModelValidatorTest.cs	Updated to expect validation to pass for complex collections
test/EFCore.Cosmos.FunctionalTests/ModelBuilding/CosmosModelBuilderGenericTest.cs	Removed Skip attributes from complex collection tests
test/EFCore.Cosmos.FunctionalTests/Scaffolding/CompiledModelCosmosTest.cs	Uncommented complex collection model configuration
test/EFCore.Cosmos.FunctionalTests/Scaffolding/Baselines/ComplexTypes/*.cs	Regenerated baseline files with updated complex type handling and formatting

Comments suppressed due to low confidence (1)

test/EFCore.Specification.Tests/ComplexTypesTrackingTestBase.cs:852

• Inconsistent indentation. Lines 845-852 have extra leading spaces compared to line 842. These lines should be aligned at the same indentation level as the yogurt variable declaration to maintain consistent formatting within the lambda body.

                if (async)
                {
                    await context.SaveChangesAsync();
                }
                else
                {
                    context.SaveChanges();
                }

[Copilot]

Pull request overview

Copilot reviewed 11 out of 13 changed files in this pull request and generated no new comments.

[AndriySvyryd]

Thanks for your contribution!