feat: 다수 기능 개선 - 순찰, 출근, 작업분석, 모바일 UI 등

- 순찰/점검 기능 개선 (zone-detail 페이지 추가)
- 출근/근태 시스템 개선 (연차 조회, 근무현황)
- 작업분석 대분류 그룹화 및 마이그레이션 스크립트
- 모바일 네비게이션 UI 추가
- NAS 배포 도구 및 문서 추가

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

deploy/tkfb-package/web-ui/js/calendar.js

@@ -0,0 +1,59 @@
+// ✅ /js/calendar.js
+export function renderCalendar(containerId, onDateSelect) {
+  const container = document.getElementById(containerId);
+  if (!container) return;
+
+  let currentDate = new Date();
+  let selectedDateStr = '';
+
+  function drawCalendar(date) {
+    container.innerHTML = '';
+    const year = date.getFullYear();
+    const month = date.getMonth();
+    const firstDay = new Date(year, month, 1).getDay();
+    const lastDate = new Date(year, month + 1, 0).getDate();
+
+    const nav = document.createElement('div');
+    nav.className = 'nav';
+    const prev = document.createElement('button');
+    prev.textContent = '◀';
+    prev.addEventListener('click', () => {
+      currentDate = new Date(year, month - 1, 1);
+      drawCalendar(currentDate);
+    });
+    const title = document.createElement('div');
+    title.innerHTML = `<strong>${year}년 ${month + 1}월</strong>`;
+    const next = document.createElement('button');
+    next.textContent = '▶';
+    next.addEventListener('click', () => {
+      currentDate = new Date(year, month + 1, 1);
+      drawCalendar(currentDate);
+    });
+    nav.append(prev, title, next);
+    container.appendChild(nav);
+
+    ['일','월','화','수','목','금','토'].forEach(day => {
+      const el = document.createElement('div');
+      el.innerHTML = `<strong>${day}</strong>`;
+      container.appendChild(el);
+    });
+
+    for (let i = 0; i < firstDay; i++) container.appendChild(document.createElement('div'));
+
+    for (let i = 1; i <= lastDate; i++) {
+      const btn = document.createElement('button');
+      const ymd = `${year}-${String(month + 1).padStart(2, '0')}-${String(i).padStart(2, '0')}`;
+      btn.textContent = i;
+      btn.className = (ymd === selectedDateStr) ? 'selected-date' : '';
+      btn.addEventListener('click', () => {
+        selectedDateStr = ymd;
+        drawCalendar(currentDate);
+        onDateSelect(ymd);
+      });
+      container.appendChild(btn);
+    }
+  }
+
+  drawCalendar(currentDate);
+}
+