feat(tkuser): 알림 수신자 탭에 ntfy 구독 관리 추가

- notificationRecipientModel에 ntfy CRUD 메서드 추가 (같은 DB 직접 쿼리)
- ntfy 라우트 3개 추가 (GET/POST/DELETE, /:type 위에 배치)
- 알림 수신자 탭 상단에 ntfy 구독 관리 카드 렌더링
- ntfy 추가 모달에 앱 설정 안내 문구 포함

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

user-management/web/static/js/tkuser-notificationRecipients.js

@@ -4,19 +4,22 @@ let nrData = {};       // { type: { label, recipients: [...] } }
 let nrTypes = {};      // { type: label }
 let nrCategories = {}; // { category: { label, icon, types: [...] } }
 let nrAllUsers = [];   // 사용자 목록 (수신자 추가용)
+let ntfySubscribers = []; // ntfy 구독자 목록
 
 async function loadNotificationRecipientsTab() {
     if (nrLoaded) return;
     try {
-        const [typesRes, allRes, usersRes] = await Promise.all([
+        const [typesRes, allRes, usersRes, ntfyRes] = await Promise.all([
             api('/notification-recipients/types'),
             api('/notification-recipients'),
-            api('/users?status=active')
+            api('/users?status=active'),
+            api('/notification-recipients/ntfy')
         ]);
         nrTypes = typesRes.data?.types || typesRes.data || {};
         nrCategories = typesRes.data?.categories || {};
         nrData = allRes.data || {};
         nrAllUsers = (usersRes.data || usersRes || []).filter(u => u.status !== 'inactive');
+        ntfySubscribers = ntfyRes.data || [];
         nrLoaded = true;
         renderNrTab();
     } catch (e) {
@@ -33,6 +36,10 @@ function renderNrTab() {
     }
 
     let html = '';
+
+    // ntfy 구독 관리 카드 (최상단)
+    html += renderNtfyCard();
+
     const categoryKeys = Object.keys(nrCategories);
 
     if (categoryKeys.length > 0) {
@@ -67,6 +74,91 @@ function renderNrTab() {
     container.innerHTML = html;
 }
 
+/* ===== ntfy 구독 관리 카드 ===== */
+function renderNtfyCard() {
+    return `
+    <div class="bg-white rounded-xl shadow-sm p-5 mb-6 border-l-4 border-blue-400">
+        <div class="flex items-center justify-between mb-3">
+            <h3 class="text-sm font-semibold text-gray-800">
+                <i class="fas fa-mobile-alt text-blue-500 mr-2"></i>ntfy 앱 알림
+                <span class="ml-2 text-xs font-normal text-gray-400">${ntfySubscribers.length}명</span>
+            </h3>
+            <button onclick="openNtfyAddModal()" class="px-3 py-1 bg-blue-600 text-white rounded-lg text-xs hover:bg-blue-700">
+                <i class="fas fa-plus mr-1"></i>추가
+            </button>
+        </div>
+        <p class="text-xs text-gray-400 mb-3">ntfy 앱으로 푸시 알림을 받을 사용자를 관리합니다.</p>
+        <div class="flex flex-wrap gap-2" id="ntfySubscriberList">
+            ${ntfySubscribers.length === 0
+                ? '<span class="text-gray-400 text-sm">구독자 없음</span>'
+                : ntfySubscribers.map(s => `
+                    <span class="inline-flex items-center gap-1.5 px-3 py-1.5 bg-blue-50 rounded-full text-sm">
+                        <span class="w-6 h-6 bg-blue-600 text-white rounded-full flex items-center justify-center text-xs font-bold">${escapeHtml((s.user_name || s.username || '?')[0])}</span>
+                        ${escapeHtml(s.user_name || s.username)}
+                        <button onclick="removeNtfySubscriber(${s.user_id})" class="text-gray-400 hover:text-red-500 ml-1" title="해제">
+                            <i class="fas fa-times text-xs"></i>
+                        </button>
+                    </span>
+                `).join('')
+            }
+        </div>
+    </div>`;
+}
+
+function openNtfyAddModal() {
+    const currentIds = ntfySubscribers.map(s => s.user_id);
+    const available = nrAllUsers.filter(u => !currentIds.includes(u.user_id));
+
+    const listEl = document.getElementById('ntfyAddUserList');
+    if (available.length === 0) {
+        listEl.innerHTML = '<p class="text-gray-400 text-sm text-center py-4">추가 가능한 사용자가 없습니다.</p>';
+    } else {
+        listEl.innerHTML = available.map(u => `
+            <label class="flex items-center gap-2 px-3 py-2 rounded-lg hover:bg-gray-50 cursor-pointer">
+                <input type="checkbox" value="${u.user_id}" class="ntfyAddCheck rounded">
+                <span class="text-sm">${escapeHtml(u.name || u.username)}</span>
+                <span class="text-xs text-gray-400">${escapeHtml(u.username)}</span>
+            </label>
+        `).join('');
+    }
+
+    document.getElementById('ntfyAddModal').classList.remove('hidden');
+}
+
+function closeNtfyAddModal() {
+    document.getElementById('ntfyAddModal').classList.add('hidden');
+}
+
+async function submitNtfyAdd() {
+    const checked = [...document.querySelectorAll('.ntfyAddCheck:checked')].map(c => Number(c.value));
+    if (checked.length === 0) { showToast('사용자를 선택해주세요.', 'error'); return; }
+
+    try {
+        for (const userId of checked) {
+            await api(`/notification-recipients/ntfy/${userId}`, { method: 'POST' });
+        }
+        showToast(`${checked.length}명 ntfy 구독 등록 완료`);
+        closeNtfyAddModal();
+        nrLoaded = false;
+        await loadNotificationRecipientsTab();
+    } catch (e) {
+        showToast('ntfy 구독 등록 실패: ' + e.message, 'error');
+    }
+}
+
+async function removeNtfySubscriber(userId) {
+    if (!confirm('이 사용자의 ntfy 구독을 해제하시겠습니까?')) return;
+    try {
+        await api(`/notification-recipients/ntfy/${userId}`, { method: 'DELETE' });
+        showToast('ntfy 구독 해제 완료');
+        nrLoaded = false;
+        await loadNotificationRecipientsTab();
+    } catch (e) {
+        showToast('ntfy 구독 해제 실패: ' + e.message, 'error');
+    }
+}
+
+/* ===== 유형별 수신자 카드 ===== */
 function renderNrTypeCard(type, label, recipients) {
     return `
     <div class="bg-white rounded-xl shadow-sm p-5 mb-3">