fix(javascript): preserve failure provenance and cleanup ownership

src/application/javascript/JavaScriptArtifactReconstruction.ts

@@ -227,7 +227,13 @@ export const reconstructJavaScriptArtifact = async (
       const checkpointCompletedAnalysis = async (): Promise<void> => {
         await setImmediate();
         if (interruption == null && signal?.aborted === true)
-          interruption = new ArtifactOperationError(OPERATION, "cancelled");
+          interruption = new ArtifactOperationError(
+            OPERATION,
+            "cancelled",
+            undefined,
+            undefined,
+            { cause: signal.reason },
+          );
       };
       const reportCompletedPhase = async (
         phase: string,