Fixed formatting

Author: fischmrl

src/domain.py

@@ -13,7 +13,7 @@
 
 class SymbologyServer:
     """Domain layer for symbology server."""
-    
+
     def __init__(self, storage: MappingStorage) -> None:
         self.storage = storage
 

src/storage.py

@@ -12,7 +12,7 @@
 
 class MappingStorage:
     """In-memory storage backend for symbology mappings."""
-    
+
     def __init__(self) -> None:
         self._mappings: List[Mapping] = []
 

tests/test_domain.py

@@ -21,12 +21,14 @@ def test_add_and_lookup_mapping():
     domain.add_mapping("AAPL", 1, date(2024, 1, 1))
     assert domain.get_identifier("AAPL", date(2024, 1, 2)) == 1
 
+
 def test_conflict_on_same_symbol():
     domain = SymbologyServer(MappingStorage())
     domain.add_mapping("AAPL", 1, date(2024, 1, 1))
     with pytest.raises(ConflictError):
         domain.add_mapping("AAPL", 2, date(2024, 1, 1))
 
+
 def test_termination_and_notfound():
     domain = SymbologyServer(MappingStorage())
     domain.add_mapping("AAPL", 1, date(2024, 1, 1))