fix: Fix processing for vector attributres table

internal/raster/gdal.go

@@ -58,12 +58,15 @@ func (c *GDALConverter) Footprint(ctx context.Context, src string) ([]byte, erro
 	return info.Wgs84Extent, nil
 }
 
-// VectorGeometry reads every feature of a vector file and returns their combined
-// geometry as a GeoJSON GeometryCollection reprojected to EPSG:4326, or nil if
-// the file has no features. The caller (PostGIS) dissolves the collection into
-// the union of all features. Zipped ESRI shapefiles are read in place via GDAL's
-// /vsizip/ virtual filesystem; GeoJSON and GeoPackage are read directly.
-func (c *GDALConverter) VectorGeometry(ctx context.Context, src string) ([]byte, error) {
+// VectorFeatures reads every feature of a vector file and returns their
+// geometries, reprojected to EPSG:4326, in file order (nil if the file has no
+// features). A feature with no geometry yields a nil entry at its index, so
+// the result stays aligned with attribute rows read from the same file (the
+// shapefile format itself has no other way to pair a .shp geometry record with
+// its .dbf attribute row than matching by position). Zipped ESRI shapefiles
+// are read in place via GDAL's /vsizip/ virtual filesystem; GeoJSON and
+// GeoPackage are read directly.
+func (c *GDALConverter) VectorFeatures(ctx context.Context, src string) ([]json.RawMessage, error) {
 	input := src
 	if strings.EqualFold(filepath.Ext(src), ".zip") {
 		input = "/vsizip/" + src
@@ -89,20 +92,16 @@ func (c *GDALConverter) VectorGeometry(ctx context.Context, src string) ([]byte,
 	if err := json.Unmarshal(out, &fc); err != nil {
 		return nil, fmt.Errorf("parse ogr2ogr output: %w", err)
 	}
-
-	geoms := make([]json.RawMessage, 0, len(fc.Features))
-	for _, f := range fc.Features {
-		if len(f.Geometry) == 0 || string(f.Geometry) == "null" {
-			continue
-		}
-		geoms = append(geoms, f.Geometry)
-	}
-	if len(geoms) == 0 {
+	if len(fc.Features) == 0 {
 		return nil, nil
 	}
 
-	return json.Marshal(struct {
-		Type       string            `json:"type"`
-		Geometries []json.RawMessage `json:"geometries"`
-	}{Type: "GeometryCollection", Geometries: geoms})
+	geoms := make([]json.RawMessage, len(fc.Features))
+	for i, f := range fc.Features {
+		if len(f.Geometry) == 0 || string(f.Geometry) == "null" {
+			continue
+		}
+		geoms[i] = f.Geometry
+	}
+	return geoms, nil
 }