fix(ingestion): stop fabricating missing player positions

app/scouting/importers/lba_public.py

@@ -269,22 +269,16 @@ class LbaSerieAPublicImporter:
             player = Player.objects.filter(pk=mapping.object_id).first()
             if player is None:
                 raise ImportValidationError("Player mapping points to a missing record.")
-            position = player.position or Player.Position.SG
             player.full_name = full_name
             player.first_name = record["name"]
             player.last_name = record["surname"]
-            player.position = position
             player.save()
             self.summary.players_updated += 1
         else:
-            # LBA stats endpoint does not expose position directly. To satisfy the current
-            # required model field without guessing role/taxonomy data, we use a neutral
-            # default and keep role/specialty ownership untouched.
             player = Player.objects.create(
                 full_name=full_name,
                 first_name=record["name"],
                 last_name=record["surname"],
-                position=Player.Position.SG,
             )
             self.summary.players_created += 1