Only look in gridsquare dm files

Author: stephen-riggs

src/murfey/client/contexts/spa_metadata.py

@@ -181,7 +181,11 @@ def post_transfer(
                             },
                         )
 
-        elif transferred_file.suffix == ".dm" and environment:
+        elif (
+            transferred_file.suffix == ".dm"
+            and transferred_file.name.startswith("GridSquare")
+            and environment
+        ):
             gs_name = transferred_file.stem.split("_")[1]
             fh_positions = _foil_hole_positions(transferred_file, int(gs_name))
             source = _get_source(transferred_file, environment=environment)