Initial public release

2026-08-31 21:56:53 +02:00
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+# CRS Policy
+
+## API Boundary
+GeoJSON in API responses should be EPSG:4326.
+
+## Analytical Operations
+For Belgium/Kempen projected calculations, use EPSG:31370 where possible.
+
+## Raster Operations
+Raster operations must preserve source CRS unless a reproject operation is explicitly requested.
+
+## Required Metadata
+Every dataset must store:
+- source CRS;
+- normalized CRS string;
+- bounds in source CRS;
+- bounds in EPSG:4326;
+- transform/affine for rasters where available.
+
+## Unsupported Cases
+If CRS cannot be determined:
+- dataset can be stored as `metadata_failed` or `requires_crs`;
+- processing requiring geospatial alignment must be blocked;
+- UI must ask for CRS or show limitation.