feat(documents): add support for start ixp extraction from attachment

[alexandrujircan]

add support for start IXP extraction from attachment

Tested locally + added UTs

[Copilot]

Pull request overview

Adds support for starting IXP extraction by digitizing from an existing UiPath job attachment, in addition to the existing file/file_path upload flow.

Changes:

• Extend DocumentsService.start_ixp_extraction{_async} to accept an attachment parameter (mutually exclusive with file/file_path).
• Add digitization helpers for the /digitization/startFromJobAttachment endpoint (sync + async).
• Add unit tests covering the new attachment-based extraction path and update validation error expectations.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/uipath/platform/documents/_documents_service.py	Adds attachment-based digitization and wires attachment into IXP extraction start APIs.
tests/sdk/services/test_documents_service.py	Adds UTs for the attachment-based IXP extraction path and updates invalid-parameter assertion.
src/uipath/platform/attachments/attachments.py	Updates the Attachment model docstring.

Comments suppressed due to low confidence (1)

src/uipath/platform/documents/_documents_service.py:1015

• The start_ixp_extraction docstring says it “uploads the file as an attachment”, but the new attachment parameter allows starting digitization from an existing job attachment without uploading. Please reword the description to reflect both code paths (upload from file/file_path vs using an existing attachment).

        attachment: Optional[Attachment] = None,
    ) -> StartExtractionResponse:
        """Start an IXP extraction process without waiting for results (non-blocking).

        This method uploads the file as an attachment and starts the extraction process,

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[Copilot]

Pull request overview

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

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