회원유형 버그 수정

frontend/src/views/club/MemberManagement.vue

@@ -89,7 +89,7 @@
         </div>
         <div class="field col-6 mb-3">
           <label for="memberType" class="mb-1">회원 유형</label>
-          <Select id="memberType" v-model="member.memberType" :options="filteredMemberTypeOptions" optionLabel="name" optionValue="code" placeholder="회원 유형 선택" class="w-full" />
+          <Select id="memberType" v-model="member.memberType" :options="filteredMemberTypeOptions" optionLabel="name" optionValue="code" placeholder="회원 유형 선택" class="w-full" :disabled="member.memberType === 'owner'" />
         </div>
         <div class="field col-6 mb-3">
           <label for="phone" class="mb-1">전화번호</label>
@@ -203,7 +203,7 @@ import {
   getStatusLabel
 } from '@/utils/enumMappings';
 // 모임장(owner) 옵션을 제외한 회원 유형 옵션만 노출
-const filteredMemberTypeOptions = computed(() => MEMBER_TYPE_OPTIONS.filter(opt => opt.value !== 'owner' && opt.code !== 'owner'));
+const filteredMemberTypeOptions = computed(() => MEMBER_TYPE_OPTIONS.filter(opt => opt.value !== 'owner'));
 
 const clubStore = useClubStore();
 const toast = useToast();