스킬 정리 및 리팩토링

lib/kis/approval.ts

@@ -1,4 +1,5 @@
 import { createHash } from "node:crypto";
+import { buildKisErrorDetail } from "@/lib/kis/error-codes";
 import type { KisCredentialInput } from "@/lib/kis/config";
 import { getKisConfig, getKisWebSocketUrl } from "@/lib/kis/config";
 
@@ -60,9 +61,11 @@ async function issueKisApprovalKey(
   const payload = tryParseApprovalResponse(rawText);
 
   if (!response.ok || !payload.approval_key) {
-    const detail = [payload.msg1, payload.error_description, payload.error, payload.msg_cd]
-      .filter(Boolean)
-      .join(" / ");
+    const detail = buildKisErrorDetail({
+      message: payload.msg1,
+      msgCode: payload.msg_cd,
+      extraMessages: [payload.error_description, payload.error],
+    });
 
     throw new Error(
       detail