feat(documents): add support for non blocking IXP validation

[alexandrujircan]

Description

Add support for non-blocking IXP validation via two methods:

• start_ixp_extraction_validation()
• retrieve_ixp_extraction_validation_result()

Instead of passing a single object to retrieve_ixp_extraction_validation_result, I passed each parameter individually to keep the same pattern used by retrieve_ixp_extraction_result. However, this differs from other methods (like extract or start_ixp_extraction_validation), which receive these parameters wrapped in an object rather than individually (like from extraction_response). We should settle on a single, consistent approach in the future

Testing

• 100% tests coverage + tested locally

[Copilot]

Pull request overview

This PR adds non-blocking IXP extraction validation support to the Documents service, allowing developers to start validation actions and retrieve results asynchronously without blocking. The implementation also refactors exception handling by introducing reusable base exception classes.

Changes:

• Added start_ixp_extraction_validation() and retrieve_ixp_extraction_validation_result() methods for non-blocking validation workflows
• Introduced OperationNotCompleteException and OperationFailedException as reusable exception classes
• Refactored existing extraction result retrieval to use the new shared exception handling logic

Reviewed changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/uipath/platform/errors/_operation_not_complete_exception.py	New reusable exception for incomplete operations
src/uipath/platform/errors/_operation_failed_exception.py	New reusable exception for failed operations
src/uipath/platform/errors/_ixp_extraction_not_complete_exception.py	Refactored to inherit from OperationNotCompleteException
src/uipath/platform/errors/init.py	Exports new exception classes
src/uipath/platform/documents/documents.py	Added validated_extraction_result and data_projection fields to ValidateExtractionAction; refactored StartExtractionResponse to inherit from new StartOperationResponse
src/uipath/platform/documents/_documents_service.py	Added new IXP validation methods and refactored internal helpers for operation result retrieval
src/uipath/platform/documents/init.py	Exports StartOperationResponse
tests/sdk/services/test_documents_service.py	Comprehensive test coverage for new methods and error scenarios
tests/sdk/services/tests_data/documents_service/extraction_validation_action_response_unassigned.json	Test data for unassigned validation action
tests/sdk/services/tests_data/documents_service/extraction_validation_action_response_completed.json	Test data for completed validation action

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[alexandrujircan]

These two new attributes were added so you no longer need to use a separate function to get the validation result, as we do in the blocking version of the code. Once the action is completed, these two attributes will be populated.

[Copilot]

Pull request overview

Copilot reviewed 9 out of 10 changed files in this pull request and generated 4 comments.

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[Copilot]

Pull request overview

Copilot reviewed 9 out of 10 changed files in this pull request and generated no new comments.

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