test: clarify process capture redaction limitation

src/process/capture/ProcessCaptureObservation.test.ts

@@ -209,8 +209,9 @@ it("marks redacted scripted input as an interaction unknown", () => {
 
   expect(result.residual_unknowns).toContainEqual({
     scope: "interaction",
-    reason:
-      "Sensitive scripted input literals and retained terminal echoes are redacted. Terminal states are reconstructed from the redacted stream; private display effects and transformed values remain unknown.",
+    reason: expect.stringMatching(
+      /sensitive scripted input.*terminal echoes.*redacted.*terminal states.*redacted stream.*private display effects.*transformed values.*unknown/iu,
+    ),
   });
 });