feat(comment-cards): 제외 단어 필터 추가

입력한 단어가 포함된 댓글을 카드·분석 양쪽에서 제외.
쉼표/공백 다중 지정, 대량 댓글 대비 입력 디바운스(250ms).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/main/resources/static/js/comment-cards.js

@@ -49,6 +49,23 @@
     return null;
   }
 
+  // 제외 단어: 쉼표/공백으로 구분. 하나라도 포함된 댓글은 카드·분석 모두에서 제외.
+  function getExcludeTerms() {
+    const raw = ($('ccExclude') && $('ccExclude').value) || '';
+    return raw.split(/[,\s]+/).map(s => s.trim().toLowerCase()).filter(Boolean);
+  }
+  function excludeComments(list, terms) {
+    if (!terms || !terms.length) return list;
+    return list.filter(c => {
+      const t = toPlainText(c.text).toLowerCase();
+      return !terms.some(term => t.includes(term));
+    });
+  }
+  function debounce(fn, ms) {
+    let h = null;
+    return function () { clearTimeout(h); h = setTimeout(fn, ms); };
+  }
+
   function applyFilterSort(cards) {
     const sort = $('ccSort').value;
     const minLikes = parseInt($('ccMinLikes').value, 10) || 0;
@@ -67,7 +84,8 @@
 
   window.renderCards = function () {
     const grid = $('cardGrid');
-    let list = applyFilterSort(window.__all);
+    const base = excludeComments(window.__all, getExcludeTerms());
+    let list = applyFilterSort(base);
     const total = list.length;
     const capped = total > DISPLAY_CAP;
     if (capped) list = list.slice(0, DISPLAY_CAP);
@@ -226,7 +244,9 @@
 
   function renderAnalytics(all) {
     const box = $('ccAnalytics');
-    if (!all || !all.length) { box.style.display = 'none'; box.innerHTML = ''; return; }
+    const exTerms = getExcludeTerms();
+    all = excludeComments(all || [], exTerms);
+    if (!all.length) { box.style.display = 'none'; box.innerHTML = ''; return; }
 
     const weighted = !!($('ccWeighted') && $('ccWeighted').checked);
     const tlSort = ($('ccTlSort') && $('ccTlSort').value) || 'count';
@@ -237,7 +257,8 @@
     const vid = window.__videoId;
 
     let html = '<div class="cc-an-head"><b>📊 분석</b> '
-      + '<span class="cc-an-sub">전체 ' + all.length.toLocaleString() + '개 댓글 기준</span>'
+      + '<span class="cc-an-sub">' + all.length.toLocaleString() + '개 댓글 기준'
+      + (exTerms.length ? ' · 제외어 적용' : '') + '</span>'
       + '<button type="button" class="cc-iconbtn" id="ccAnToggle">접기</button></div>'
       + '<div id="ccAnBody">';
 
@@ -434,6 +455,11 @@
     $('ccUrl').addEventListener('keydown', (e) => { if (e.key === 'Enter') fetchComments(); });
     ['ccSearch', 'ccSort', 'ccMinLikes', 'ccRepliesOnly'].forEach(id =>
       $(id).addEventListener('input', () => window.renderCards()));
+    // 제외 단어는 카드+분석 둘 다 갱신. 대량 댓글 대비 디바운스.
+    $('ccExclude').addEventListener('input', debounce(() => {
+      window.renderCards();
+      renderAnalytics(window.__all);
+    }, 250));
     $('ccMosaic').addEventListener('click', () => {
       mosaicOn = !mosaicOn;
       $('ccMosaic').textContent = mosaicOn ? '모자이크 해제' : '전체 모자이크';

src/main/resources/templates/comment-cards.html

@@ -93,6 +93,7 @@
 
     <div class="cc-toolbar" id="ccFilters" style="display:none;">
         <input type="text" id="ccSearch" placeholder="🔍 댓글 내용 검색" style="min-width:180px;" />
+        <input type="text" id="ccExclude" placeholder="🚫 제외 단어 (쉼표로 구분)" style="min-width:180px;" />
         <select id="ccSort">
             <option value="likes">좋아요순</option>
             <option value="replies">답글순</option>
@@ -116,7 +117,7 @@
 <th:block layout:fragment="script">
     <!-- DOM→이미지 캡처 (Task 5에서 사용). blur 필터 지원 위해 modern-screenshot 사용. -->
     <script src="https://cdn.jsdelivr.net/npm/modern-screenshot@4/dist/index.js"></script>
-    <script th:src="@{/js/comment-cards.js(v=20260708b)}"></script>
+    <script th:src="@{/js/comment-cards.js(v=20260708c)}"></script>
 </th:block>
 </body>
 </html>