fix(worker): use correct band names for DE Africa STAC in hybrid inference

apps/worker/hybrid_inference.py

@@ -131,15 +131,29 @@ class DEAfricaSTACWrapper:
             raise ValueError("No STAC items found for this bounding box and time range.")
         
         print(f"Found {len(items)} STAC items. Loading into xarray...")
+        
+        # Mapping for DE Africa S2 bands
+        band_map = {
+            'B04': 'red',
+            'B03': 'green',
+            'B02': 'blue',
+            'B08': 'nir',
+            'B05': 'red_edge_1',
+            'SCL': 'scl'
+        }
+        
         ds = odc.stac.load(
             items,
-            measurements=['red', 'green', 'blue', 'nir', 'red_edge_1', 'scl'],
+            measurements=list(band_map.keys()),
             bbox=bbox,
             crs="EPSG:6933",
             resolution=resolution,
             groupby="solar_day"
         )
         
+        # Rename bands to expected names
+        ds = ds.rename(band_map)
+        
         print("Masking clouds and shadows...")
         valid_mask = (ds.scl == 4) | (ds.scl == 5) | (ds.scl == 6) | (ds.scl == 2) | (ds.scl == 7)
         ds = ds.where(valid_mask)