Remove: 캘린더 캐싱 제거, 매번 최신 데이터 불러오기

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

js/schedule.js

@@ -6,7 +6,6 @@
     'use strict';
 
     var APPS_SCRIPT_URL = 'https://script.google.com/macros/s/AKfycbwoaoSmEskbJod4gR5NjLnpWSkhIDUYaGBYk0y1Q865TzaJ4gctSrTOWXxRnVa7J9AASA/exec';
-    var CACHE_TTL = 30 * 60 * 1000; // 30분
 
     var currentYear, currentMonth;
     var calTitle = document.getElementById('calTitle');
@@ -35,21 +34,14 @@
     function renderCalendar() {
         updateTitle();
 
-        var cached = getCache(currentYear, currentMonth);
+        // 매번 새로 불러오기
-        if (cached !== null) {
-            buildGrid(cached);
-        } else {
-            // 즉시 빈 그리드 렌더링 + 로딩 표시
         buildGrid([]);
         showLoading();
         fetchBookedDates(currentYear, currentMonth, function(dates) {
-                setCache(currentYear, currentMonth, dates);
             buildGrid(dates);
             hideLoading();
-                prefetchAdjacent();
         });
     }
-    }
 
     function showLoading() {
         calBody.classList.add('loading');
@@ -72,38 +64,6 @@
         if (overlay) overlay.remove();
     }
 
-    function prefetchAdjacent() {
-        var nextM = currentMonth + 1, nextY = currentYear;
-        if (nextM > 12) { nextM = 1; nextY++; }
-        if (getCache(nextY, nextM) === null) {
-            fetchBookedDates(nextY, nextM, function(dates) {
-                setCache(nextY, nextM, dates);
-            });
-        }
-    }
-
-    // --- localStorage 캐싱 ---
-    function cacheKey(y, m) { return 'mingle_cal_' + y + '_' + m; }
-
-    function getCache(y, m) {
-        try {
-            var raw = localStorage.getItem(cacheKey(y, m));
-            if (!raw) return null;
-            var obj = JSON.parse(raw);
-            if (Date.now() - obj.ts > CACHE_TTL) {
-                localStorage.removeItem(cacheKey(y, m));
-                return null;
-            }
-            return obj.dates;
-        } catch (e) { return null; }
-    }
-
-    function setCache(y, m, dates) {
-        try {
-            localStorage.setItem(cacheKey(y, m), JSON.stringify({ dates: dates, ts: Date.now() }));
-        } catch (e) { /* quota exceeded 등 무시 */ }
-    }
-
     // --- 제목 업데이트 ---
     function updateTitle() {
         var lang = (window.i18n && window.i18n.currentLang) || 'ko';