fix:견적확정 밸리데이션 필드명 수정 (managerName→manager)

src/components/quotes/QuoteRegistrationV2.tsx

@@ -698,8 +698,8 @@ export function QuoteRegistrationV2({
       const missing: string[] = [];
       if (!formData.clientName?.trim()) missing.push("업체명");
       if (!formData.siteName?.trim()) missing.push("현장명");
-      if (!formData.managerName?.trim()) missing.push("담당자");
-      if (!formData.managerContact?.trim()) missing.push("연락처");
+      if (!formData.manager?.trim()) missing.push("담당자");
+      if (!formData.contact?.trim()) missing.push("연락처");
       if (missing.length > 0) {
         toast.error(`견적확정을 위해 다음 항목을 입력해주세요: ${missing.join(", ")}`);
         return;