WA-26526: Add extractions schema

[emils-wallester]

Description

• add /extractions schema from https://github.com/onfido/onfido-openapi-spec
• regenerate models

[Copilot]

Pull request overview

Adds a new /extractions (“Autofill”) endpoint to the OpenAPI definition and regenerates the Go client, introducing new extraction models plus shared enums for country and document types.

Changes:

• Define /extractions POST in the root spec and add the extraction response schema.
• Add reusable enum schemas: country_codes and document_types.
• Regenerate Go client code + docs with OpenAPI Generator 7.21.0 (new API method, models, docs, and generated api/openapi.yaml).

Reviewed changes

Copilot reviewed 28 out of 28 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
schemas/extractions/extraction.yaml	Adds the Extraction schema (document classification + extracted fields).
schemas/document_types/document_types.yaml	Introduces document type enum used by extraction schemas/models.
schemas/countries/country_codes.yaml	Introduces ISO3 country code enum used by extraction schemas/models.
responses/document_extraction_error.yaml	Defines extraction-specific error response schema.
README.md	Updates generator version and documents the new Extract endpoint/models.
paths/extractions.yaml	Adds /extractions POST operation definition.
openapi.yaml	Wires /extractions into the root OpenAPI paths.
model_extraction.go	Generated Go model for Extraction.
model_extraction_extracted_data.go	Generated Go model for extracted document fields.
model_extraction_document_classification.go	Generated Go model for extracted document classification.
model_extract_request.go	Generated Go model for the extraction request payload.
model_error_properties_1.go	Generated Go error properties model for extraction error shape.
model_error_1.go	Generated Go error wrapper model for extraction error shape.
model_document_types.go	Generated Go enum for document types.
model_country_codes.go	Generated Go enum for country codes.
docs/ExtractRequest.md	Generated model documentation for ExtractRequest.
docs/ExtractionExtractedData.md	Generated model documentation for ExtractionExtractedData.
docs/ExtractionDocumentClassification.md	Generated model documentation for ExtractionDocumentClassification.
docs/Extraction.md	Generated model documentation for Extraction.
docs/ErrorProperties1.md	Generated model documentation for ErrorProperties1.
docs/Error1.md	Generated model documentation for Error1.
docs/DocumentTypes.md	Generated enum documentation for DocumentTypes.
docs/DefaultAPI.md	Generated API docs including Extract endpoint.
docs/CountryCodes.md	Generated enum documentation for CountryCodes.
api/openapi.yaml	Regenerated bundled OpenAPI spec including new path/schemas.
api_default.go	Generated client method Extract and response decoding.
.openapi-generator/VERSION	Bumps generator version to 7.21.0.
.openapi-generator/FILES	Updates generated file manifest to include new artifacts.

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