chore: Enfore consistent file-name casing on all backend packages (#15755)

packages/workflow/src/expression-evaluator-proxy.ts

@@ -0,0 +1,21 @@
+import { Tournament } from '@n8n/tournament';
+
+import { PrototypeSanitizer } from './expression-sandboxing';
+
+type Evaluator = (expr: string, data: unknown) => string | null | (() => unknown);
+type ErrorHandler = (error: Error) => void;
+
+const errorHandler: ErrorHandler = () => {};
+const tournamentEvaluator = new Tournament(errorHandler, undefined, undefined, {
+	before: [],
+	after: [PrototypeSanitizer],
+});
+const evaluator: Evaluator = tournamentEvaluator.execute.bind(tournamentEvaluator);
+
+export const setErrorHandler = (handler: ErrorHandler) => {
+	tournamentEvaluator.errorHandler = handler;
+};
+
+export const evaluateExpression: Evaluator = (expr, data) => {
+	return evaluator(expr, data);
+};