feat(project): 댓글 있는 업무에 말풍선 아이콘 표시(달력·타임라인·보드·리스트)

- list_tasks/get_task 에 comment_count 서브쿼리 추가
- 달력 막대/타임라인 항목/보드 카드/리스트 업무열에 댓글 수 말풍선
- 댓글 로드 시 메모리 카운트 동기화

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/static/project.js

@@ -175,6 +175,13 @@
       return !!cb && cb === me;
     }
     const DELETE_DENIED = "삭제는 만든 사람만 할 수 있습니다.";
+    // 댓글 있으면 말풍선 아이콘(+개수). 색은 currentColor 상속(막대=흰, 카드/리스트=진회색).
+    function cmtBadge(t, cls) {
+      const n = t.comment_count || 0;
+      if (!n) return "";
+      return '<span class="material-symbols-outlined pj-cmt-ic ' + (cls || "") +
+        '" title="댓글 ' + n + '개">chat_bubble</span><span class="pj-cmt-n">' + n + "</span>";
+    }
 
     const dataEl = el("pj-data");
     const data = JSON.parse(dataEl.textContent);
@@ -326,7 +333,7 @@
           div.style.background = b.t.completed_at ? "#9aa5b1" : (b.t.project_color || "#4573d2");
           div.title = "[" + (b.t.project_name || "") + "] " + (b.t.title || "") +
             (b.t.assignee_email ? " · " + idOf(b.t.assignee_email) : "");
-          div.innerHTML = '<span class="pj-bar-label">' + escapeHtml(b.t.title || "") + "</span>";
+          div.innerHTML = '<span class="pj-bar-label">' + escapeHtml(b.t.title || "") + "</span>" + cmtBadge(b.t);
           cont.appendChild(div);
         });
         for (var col = 0; col < 7; col++) {
@@ -484,7 +491,7 @@
           const endISO = e + (t.due_time ? "T" + t.due_time : "");
           const isRange = (e !== s) || (!!t.start_time && !!t.due_time && t.start_time !== t.due_time);
           items.push({
-            id: t.id, group: grp, content: t.title,
+            id: t.id, group: grp, content: escapeHtml(t.title || "") + cmtBadge(t, "pj-cmt-ic-tl"),
             start: startISO, end: isRange ? endISO : undefined,
             type: isRange ? "range" : "point",
             style: "background-color:" + (t.completed_at ? "#9aa5b1" : projColor) + ";color:#fff;border:none;",
@@ -613,6 +620,7 @@
             escapeHtml(idOf(t.assignee_email)) + "</span>"
           : "") +
         (t.due_date ? '<span class="pj-card-due">' + t.due_date + "</span>" : "") +
+        (t.comment_count ? '<span class="pj-card-cmt">' + cmtBadge(t) + "</span>" : "") +
         "</div>";
       card.addEventListener("click", function () { if (canManage) openTaskModal(t); });
       if (canManage) {
@@ -724,7 +732,9 @@
         const pc = t.project_color || "#4573d2";
         tr.style.background = pc + "14";
         tr.innerHTML = LIST_COLS.map(function (c) {
-          return "<td>" + escapeHtml(String(c.text(t))) + "</td>";
+          let inner = escapeHtml(String(c.text(t)));
+          if (c.key === "title") inner += cmtBadge(t);
+          return "<td>" + inner + "</td>";
         }).join("");
         if (canManage) { tr.style.cursor = "pointer"; tr.addEventListener("click", function () { openTaskModal(t); }); }
         tbody.appendChild(tr);
@@ -833,6 +843,9 @@
       ul.innerHTML = "<li class='pj-empty-sm'>불러오는 중…</li>";
       try {
         const res = await api("GET", "/project/api/tasks/" + taskId + "/comments");
+        // 메모리 업무의 댓글 수 동기화(아이콘 표시용)
+        const tt = tasks.find(function (x) { return String(x.id) === String(taskId); });
+        if (tt) tt.comment_count = res.comments.length;
         if (!res.comments.length) { ul.innerHTML = "<li class='pj-empty-sm'>댓글 없음</li>"; return; }
         ul.innerHTML = "";
         res.comments.forEach(function (c) {