feat(WEB): 견적 상세 item_type 공통코드 표시 개선

- getItemTypeCodes API 호출로 공통코드 조회
- 하드코딩된 RM/SM/CS 대신 코드명 동적 표시

src/app/[locale]/(protected)/sales/quote-management/[id]/page.tsx

@@ -30,6 +30,7 @@ import {
 } from "@/components/quotes";
 import { getCompanyInfo } from "@/components/settings/CompanyInfoManagement/actions";
 import type { CompanyFormData } from "@/components/settings/CompanyInfoManagement/types";
+import { getItemTypeCodes, type CommonCode } from "@/lib/api/common-codes";
 import { toast } from "sonner";
 import { Button } from "@/components/ui/button";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
@@ -79,6 +80,9 @@ export default function QuoteDetailPage() {
   // BOM 자재 상세 펼침/접힘 상태
   const [isBomExpanded, setIsBomExpanded] = useState(true);
 
+  // 공통 코드 (item_type)
+  const [itemTypeCodes, setItemTypeCodes] = useState<CommonCode[]>([]);
+
   // 견적 데이터 조회
   const fetchQuote = useCallback(async () => {
     setIsLoading(true);
@@ -137,10 +141,26 @@ export default function QuoteDetailPage() {
     }
   }, []);
 
+  // 공통 코드 조회
+  const fetchItemTypeCodes = useCallback(async () => {
+    const result = await getItemTypeCodes();
+    if (result.success && result.data) {
+      setItemTypeCodes(result.data);
+    }
+  }, []);
+
+  // item_type 코드 → 이름 변환 헬퍼
+  const getItemTypeLabel = useCallback((code: string | undefined | null): string => {
+    if (!code) return '-';
+    const found = itemTypeCodes.find(item => item.code === code);
+    return found?.name || code;
+  }, [itemTypeCodes]);
+
   useEffect(() => {
     fetchQuote();
     fetchCompanyInfo();
-  }, [fetchQuote, fetchCompanyInfo]);
+    fetchItemTypeCodes();
+  }, [fetchQuote, fetchCompanyInfo, fetchItemTypeCodes]);
 
   const handleBack = () => {
     router.push("/sales/quote-management");
@@ -559,9 +579,7 @@ export default function QuoteDetailPage() {
                         <td className="p-2">{material.itemName}</td>
                         <td className="p-2">
                           <Badge variant="outline" className="text-xs">
-                            {material.itemType === 'RM' ? '원자재' :
-                             material.itemType === 'SM' ? '부자재' :
-                             material.itemType === 'CS' ? '소모품' : material.itemType}
+                            {getItemTypeLabel(material.itemType)}
                           </Badge>
                         </td>
                         <td className="p-2 text-muted-foreground">{material.specification || '-'}</td>