fix(qa-matrix): use truncateUtf16Safe for reply body preview

Pandah97 · Pandah97 · commit 4eb21d8e10f4 · 2026-07-09T19:22:42.000+08:00
Replace .slice(0, 200) with truncateUtf16Safe() on MATRIX reply body
preview to prevent UTF-16 surrogate pair corruption.
diff --git a/extensions/qa-matrix/src/runners/contract/scenario-runtime-shared.ts b/extensions/qa-matrix/src/runners/contract/scenario-runtime-shared.ts
@@ -1,5 +1,6 @@
 // Qa Matrix plugin module implements scenario runtime shared behavior.
 import { randomUUID } from "node:crypto";
+import { truncateUtf16Safe } from "openclaw/plugin-sdk/text-utility-runtime";
 import { createMatrixQaClient, type MatrixQaRoomObserver } from "../../substrate/client.js";
 import type { MatrixQaObservedEvent } from "../../substrate/events.js";
 import type { MatrixQaFaultProxyObserver } from "../../substrate/fault-proxy.js";
@@ -189,7 +190,7 @@ export function buildMatrixReplyArtifact(
 ): MatrixQaReplyArtifact {
   const replyBody = event.body?.trim();
   return {
-    bodyPreview: replyBody?.slice(0, 200),
+    bodyPreview: replyBody ? truncateUtf16Safe(replyBody, 200) : undefined,
     eventId: event.eventId,
     mentions: event.mentions,
     relatesTo: event.relatesTo,
