fix: make narratives parameter in ExecutionTraceExtractor a Partial transformer to maintain compatibility after adding mandatory id: string in ExecutionTrace model.

This prevents the TS2769: No overload matches this call error when executing `.run()` with a `narratives` transformer in `options?: TraceOptions<Array<any>, O>`

Author: tabkram

src/common/models/executionTrace.model.ts

@@ -14,7 +14,7 @@ export interface ExecutionTraceExtractor<I, O> {
   inputs?: boolean | Array<string> | ((i: I) => unknown);
   outputs?: boolean | Array<string> | ((o: O) => unknown);
   errors?: boolean | Array<string> | ((e: Array<unknown>) => unknown);
-  narratives?: boolean | Array<string> | ((execTrace: ExecutionTrace<I, O>) => Array<string>);
+  narratives?: boolean | Array<string> | ((execTrace: Partial<ExecutionTrace<I, O>>) => Array<string>);
   startTime?: boolean;
   endTime?: boolean;
 }