Refactor code for improved readability and consistency across multiple files

backend/tests/test_import_savings.py

@@ -163,9 +163,7 @@ def test_revert_removes_created_savings_transfer(db: Session) -> None:
     assert db.query(Operation).filter_by(space_id=space.id).count() == 0
     assert db.query(SourceRecordLink).filter_by(space_id=space.id).count() == 0
     assert document.status == "ready"
-    source = (
-        db.query(SourceRecord).filter_by(parse_run_id=document.active_parse_run_id).one()
-    )
+    source = db.query(SourceRecord).filter_by(parse_run_id=document.active_parse_run_id).one()
     # Repeated parse gives the same decision: the hint survives revert.
     assert source.review_decision == "savings_transfer"
 
@@ -350,9 +348,9 @@ def test_unresolved_hold_counts_and_month_filter(db: Session) -> None:
 
     unresolved = service.unresolved_holds(db, space_id=space.id, document=document)
     assert len(unresolved) == 2
-    assert service.unresolved_hold_counts(
-        db, space_id=space.id, document_ids=[document.id]
-    ) == {document.id: 2}
+    assert service.unresolved_hold_counts(db, space_id=space.id, document_ids=[document.id]) == {
+        document.id: 2
+    }
     may = service.parse_month_filter("2026-05")
     assert may == (2026, 5)
     may_holds = [h for h in unresolved if h.occurred_on and h.occurred_on.month == 5]