refactor: consolidate remaining coercion helpers (#122020)

src/cli/devices-cli.runtime.ts

@@ -1,4 +1,5 @@
 // Device pairing runtime commands for gateway and loopback-local fallback operations.
+import { coerceErrorMessage as normalizeErrorMessage } from "@openclaw/normalization-core/error-coercion";
 import {
   normalizeLowercaseStringOrEmpty,
   normalizeOptionalString,
@@ -275,13 +276,6 @@ async function findQueryPendingNodeApprovalNotices(
   );
 }
 
-function normalizeErrorMessage(error: unknown): string {
-  if (error instanceof Error) {
-    return error.message;
-  }
-  return String(error);
-}
-
 function isDevicePairingApprovalDenied(error: unknown): boolean {
   return normalizeLowercaseStringOrEmpty(normalizeErrorMessage(error)).includes(
     "device pairing approval denied",