adminfront 사용자 관리 추가 수정 (대표 조직 독점 선택 및 보호)

- 한맥가족 대표 조직(isOwner) 선택 시 독점(Exclusive) 선택 로직 적용
- 주 소속(isPrimary) 테넌트의 경우 대표 조직 해제 불가하도록 Switch 비활성화 처리
- UserDetailPage 및 UserCreatePage 공통 로직 보정

adminfront/src/features/users/UserCreatePage.tsx

@@ -290,9 +290,15 @@ function UserCreatePage() {
     patch: Partial<UserAppointment>,
   ) => {
     setAdditionalAppointments((current) =>
-      current.map((appointment, currentIndex) =>
-        currentIndex === index ? { ...appointment, ...patch } : appointment,
-      ),
+      current.map((appointment, currentIndex) => {
+        if (currentIndex === index) {
+          return { ...appointment, ...patch };
+        }
+        if (patch.isOwner === true) {
+          return { ...appointment, isOwner: false };
+        }
+        return appointment;
+      }),
     );
   };
 

adminfront/src/features/users/UserDetailPage.tsx

@@ -536,9 +536,15 @@ function UserDetailPage() {
     patch: Partial<UserAppointment>,
   ) => {
     setAdditionalAppointments((current) =>
-      current.map((appointment, currentIndex) =>
-        currentIndex === index ? { ...appointment, ...patch } : appointment,
-      ),
+      current.map((appointment, currentIndex) => {
+        if (currentIndex === index) {
+          return { ...appointment, ...patch };
+        }
+        if (patch.isOwner === true) {
+          return { ...appointment, isOwner: false };
+        }
+        return appointment;
+      }),
     );
   };
 
@@ -1168,6 +1174,7 @@ function UserDetailPage() {
                                         isOwner: checked === true,
                                       })
                                     }
+                                    disabled={appointment.isPrimary}
                                     aria-label={t(
                                       "ui.admin.users.detail.form.appointment_owner",
                                       "대표 조직",