Cosmos test improvements for Linux-based emulator

[roji]

Removed some skips, opened issues and linked to them.

[Copilot]

Pull request overview

Updates Cosmos functional tests to better reflect current Linux-based Cosmos emulator behavior by unskipping tests that now pass and documenting remaining emulator gaps with linked upstream issues.

Changes:

• Removed several [CosmosCondition(CosmosCondition.IsNotLinuxEmulator)] skips so tests execute on the Linux emulator where behavior is now compatible.
• Added targeted Linux-emulator skips back to specific tests, annotated with links to upstream emulator issues explaining the limitation.
• Added clarifying comments for Linux-emulator-specific feature gaps (e.g., transactional batch limits, full-text search, scripts/triggers).

Reviewed changes

Copilot reviewed 34 out of 34 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
test/EFCore.Cosmos.FunctionalTests/Update/CosmosBulkWarningTest.cs	Adds issue link explaining why specific bulk warning tests remain skipped on Linux emulator.
test/EFCore.Cosmos.FunctionalTests/Update/CosmosBulkExecutionTest.cs	Adds issue link explaining transactional batch limit behavior on Linux emulator.
test/EFCore.Cosmos.FunctionalTests/Update/CosmosBulkConcurrencyTest.cs	Narrows Linux-emulator skipping to specific concurrency tests and documents upstream issue.
test/EFCore.Cosmos.FunctionalTests/Types/CosmosTemporalTypeTest.cs	Documents Linux emulator aggregate/subquery limitation for primitive collection queries.
test/EFCore.Cosmos.FunctionalTests/Types/CosmosNumericTypeTest.cs	Documents Linux emulator aggregate/subquery limitation for primitive collection queries.
test/EFCore.Cosmos.FunctionalTests/Types/CosmosMiscellaneousTypeTest.cs	Documents Linux emulator aggregate/subquery limitation for primitive collection queries.
test/EFCore.Cosmos.FunctionalTests/Query/Translations/MathTranslationsCosmosTest.cs	Removes Linux-emulator skip so truncate/order-by tests run on Linux emulator.
test/EFCore.Cosmos.FunctionalTests/Query/ReadItemPartitionKeyQueryTest.cs	Adds targeted Linux-emulator skips w/ issue link for partial hierarchical partition key query behavior.
test/EFCore.Cosmos.FunctionalTests/Query/ReadItemPartitionKeyQueryRootDiscriminatorInIdTest.cs	Adds targeted Linux-emulator skips w/ issue link for partial hierarchical partition key query behavior.
test/EFCore.Cosmos.FunctionalTests/Query/ReadItemPartitionKeyQueryNoDiscriminatorInIdTest.cs	Adds targeted Linux-emulator skips w/ issue link for partial hierarchical partition key query behavior.
test/EFCore.Cosmos.FunctionalTests/Query/ReadItemPartitionKeyQueryDiscriminatorInIdTest.cs	Adds targeted Linux-emulator skips w/ issue link for partial hierarchical partition key query behavior.
test/EFCore.Cosmos.FunctionalTests/Query/QueryLoggingCosmosTestBase.cs	Removes Linux-emulator skip so query logging tests run on Linux emulator.
test/EFCore.Cosmos.FunctionalTests/Query/PrimitiveCollectionsQueryCosmosTest.cs	Adds targeted Linux-emulator skips w/ issue link for aggregate-over-subquery behavior.
test/EFCore.Cosmos.FunctionalTests/Query/OwnedQueryCosmosTest.cs	Removes some Linux-emulator skips; adds targeted skips w/ issue links for ORDER BY expression limitations and aggregate/subquery behavior.
test/EFCore.Cosmos.FunctionalTests/Query/NorthwindSelectQueryCosmosTest.cs	Removes Linux-emulator skip so a previously skipped query test runs on Linux emulator; adds targeted issue link for ORDER BY limitation.
test/EFCore.Cosmos.FunctionalTests/Query/NorthwindMiscellaneousQueryCosmosTest.cs	Removes multiple Linux-emulator skips and adds targeted issue links for ORDER BY expression limitations and paging behavior.
test/EFCore.Cosmos.FunctionalTests/Query/NorthwindFunctionsQueryCosmosTest.cs	Removes Linux-emulator skip so function ordering test runs on Linux emulator.
test/EFCore.Cosmos.FunctionalTests/Query/NorthwindAggregateOperatorsQueryCosmosTest.cs	Removes multiple Linux-emulator skips; adds targeted skips w/ issue link for EXISTS/ANY/ALL subquery server errors.
test/EFCore.Cosmos.FunctionalTests/Query/JsonQueryCosmosTest.cs	Removes Linux-emulator skips so JSON index predicate tests run on Linux emulator.
test/EFCore.Cosmos.FunctionalTests/Query/ComplexTypeToJsonPropertyQueryCosmosTest.cs	Adds targeted Linux-emulator skips w/ issue link for complex-type equality behavior.
test/EFCore.Cosmos.FunctionalTests/Query/ComplexTypeQueryCosmosTest.cs	Adds targeted Linux-emulator skips w/ issue link for complex-type equality behavior.
test/EFCore.Cosmos.FunctionalTests/Query/Associations/OwnedNavigations/OwnedNavigationsPrimitiveCollectionCosmosTest.cs	Adds targeted Linux-emulator skip w/ issue link for aggregate/subquery behavior.
test/EFCore.Cosmos.FunctionalTests/Query/Associations/OwnedNavigations/OwnedNavigationsCollectionCosmosTest.cs	Removes Linux-emulator skips for some cases; adds targeted skips w/ issue link for aggregate/subquery behavior.
test/EFCore.Cosmos.FunctionalTests/Query/Associations/ComplexProperties/ComplexPropertiesStructuralEqualityCosmosTest.cs	Removes class-level Linux-emulator skip and replaces with targeted method-level skips w/ issue link for complex-type equality.
test/EFCore.Cosmos.FunctionalTests/Query/Associations/ComplexProperties/ComplexPropertiesPrimitiveCollectionCosmosTest.cs	Adds targeted Linux-emulator skip w/ issue link for aggregate/subquery behavior.
test/EFCore.Cosmos.FunctionalTests/Query/Associations/ComplexProperties/ComplexPropertiesCollectionCosmosTest.cs	Removes Linux-emulator skips for some cases; adds targeted skips w/ issue link for aggregate/subquery behavior.
test/EFCore.Cosmos.FunctionalTests/Query/AdHocComplexTypeQueryCosmosTest.cs	Adds targeted Linux-emulator skip w/ issue link for complex-type equality behavior.
test/EFCore.Cosmos.FunctionalTests/EndToEndCosmosTest.cs	Adds issue link explaining why end-to-end transactional batch variant is skipped on Linux emulator.
test/EFCore.Cosmos.FunctionalTests/EmbeddedDocumentsTest.cs	Removes a Linux-emulator skip for embedded collection manipulation; adds targeted skip w/ issue link for complex-type equality behavior.
test/EFCore.Cosmos.FunctionalTests/CosmosTriggersTest.cs	Adds comment clarifying that triggers/server-side scripts aren’t supported on Linux emulator.
test/EFCore.Cosmos.FunctionalTests/CosmosTransactionalBatchTest.cs	Adds class-level comment linking upstream issue for transactional batch limits on Linux emulator.
test/EFCore.Cosmos.FunctionalTests/CosmosSessionTokensTest.cs	Adds issue link documenting Linux emulator session token tracking limitation (class and nested test class).
test/EFCore.Cosmos.FunctionalTests/ConfigPatternsCosmosTest.cs	Adds comment clarifying Linux emulator limitation around ConnectionMode.Direct.
test/EFCore.Cosmos.FunctionalTests/AddHocFullTextSearchCosmosTest.cs	Adds issue links explaining lack of full-text search support on Linux emulator.