added vegetation

api/app/models/common.py

@@ -26,3 +26,15 @@ class RxPoint(AntennaPoint):
 GeoJSON = dict[str, Any]
 SurfaceKind = Literal["dtm", "dsm"]
 OutputFormat = Literal["geotiff", "png", "geojson"]
+
+
+class ApiError(BaseModel):
+    code: str
+    detail: str
+
+
+class DataSources(BaseModel):
+    dem: bool = False
+    buildings: bool = False
+    landcover: bool = False
+    canopy: bool = False