fix: WIP address export issues

[igorDykhta]

No description provided.

[Copilot]

Pull request overview

This PR improves geometry export/re-import behavior by adding safer serialization for GeoArrow cells and by detecting GeoJSON geometry strings during field type inference, with accompanying Node test coverage.

Changes:

• Add formatGeoArrowValue to serialize GeoArrow/WKB cells into re-importable strings (prefer WKT/GeoJSON, fallback to hex).
• Add isGeoJsonGeometryString and integrate it into getFieldsFromData so GeoJSON-in-CSV columns classify as geometry.
• Extend Node tests to cover GeoJSON-geometry-string detection and GeoArrow CSV roundtripping.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/node/utils/dataset-utils-test.js	Adds unit tests for isGeoJsonGeometryString and fixes t.end() placement for isHexWkb test.
test/node/utils/data-utils-test.js	Adds tests ensuring GeoArrow cells format to strings and parseFieldValue uses the GeoArrow formatter.
test/node/utils/data-processor-test.js	Adds tests for GeoJSON-in-geometry column detection and GeoArrow→CSV→reimport roundtrip.
src/utils/src/data-utils.ts	Implements formatGeoArrowValue and wires it into FIELD_DISPLAY_FORMAT for geoarrow fields.
src/processors/src/data-processor.ts	Adds Arrow field classification logging helper invoked from arrowSchemaToFields.
src/common-utils/src/data.ts	Introduces isGeoJsonGeometryString for recognizing GeoJSON geometry/feature JSON strings.
src/common-utils/src/data-type.ts	Uses isGeoJsonGeometryString during type inference to classify GeoJSON strings as geometry.

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