fix: align total costs with visible budgets

tests/test_comparison_and_allocations.py

@@ -180,3 +180,18 @@ def test_personal_account_names_fill_with_admin_if_only_one_editor_is_active(app
 
     assert personal_labels["persoenlich-flo"] == "Person A"
     assert personal_labels["persoenlich-desi"] == "Admin"
+
+
+def test_compute_summary_ignores_inactive_budget_entries(app):
+    service = app.extensions["saldo.month_service"]
+    month = Month.query.filter_by(label="2026-04").first()
+    value = next(item for item in month.entry_values if item.entry.name == "Miete")
+
+    baseline = service.compute_summary(month)
+    value.entry.is_active = False
+    db.session.commit()
+
+    summary = service.compute_summary(month)
+
+    assert summary.fixed_costs == baseline.fixed_costs - Decimal("920.00")
+    assert summary.total_costs == baseline.total_costs - Decimal("920.00")