
Check plot data for EUNIS classification requirements
resy_check_eunis.RdValidates that the input data frame or sf object meets the structural requirements for EUNIS habitat classification. This is a pure check — it reports issues without modifying data. Use [resy_harmonize_eunis()] to actually enrich and prepare the data.
Checks performed:
`PlotObservationID` column is present.
Coordinates are present and can be transformed to EPSG:25832.
`Altitude (m)` column is present and free of `NA`.
`Ecoreg` and `Country` columns are present (or will need to be assigned).
`Coast_EEA` and `Dunes_Bohn` columns are present when coastal/dune classification is relevant.