feat(schedule-pc): 날짜 미정 일정 렌더링 (B안)

date_precision='month' 일정을 점선 "N월 중" 카드(UndatedScheduleCard)로
표시. 선택 날짜와 무관하게 해당 월이면 확정 일정 아래에 배치하고
사이에 "날짜 미정" 구분선 추가. 카운트에도 포함.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

frontend/src/components/pc/public/schedule/UndatedScheduleCard.jsx

@@ -0,0 +1,66 @@
+import { memo } from 'react';
+import { Tag, Link2 } from 'lucide-react';
+import { decodeHtmlEntities, getDisplayMembers, getCategoryInfo } from '@/utils';
+
+/**
+ * 날짜 미정(월만 확정) 일정 카드 (PC)
+ * date_precision === 'month' 인 일정에 사용. 날짜 대신 "날짜 미정"으로 표시하고
+ * 점선 테두리로 확정 일정과 구분한다.
+ */
+const UndatedScheduleCard = memo(function UndatedScheduleCard({ schedule, onClick, className = '' }) {
+  const categoryInfo = getCategoryInfo(schedule);
+  const displayMembers = getDisplayMembers(schedule);
+  const sourceName = schedule.source?.name;
+
+  // date는 해당 월 1일(YYYY-MM-01)로 저장됨 → 월만 추출
+  const month = new Date(schedule.date).getMonth() + 1;
+
+  return (
+    <div
+      onClick={onClick}
+      className={`flex items-stretch bg-white rounded-2xl border-2 border-dashed border-gray-300 hover:border-gray-400 transition-colors overflow-hidden cursor-pointer ${className}`}
+    >
+      {/* 월 영역 (연한 카테고리 색) */}
+      <div
+        className="w-24 flex flex-col items-center justify-center py-6 leading-tight"
+        style={{ backgroundColor: `${categoryInfo.color}1a`, color: categoryInfo.color }}
+      >
+        <span className="text-2xl font-bold">{month}월</span>
+        <span className="text-xs font-semibold mt-1 opacity-90">중</span>
+      </div>
+
+      {/* 내용 */}
+      <div className="flex-1 p-6 flex flex-col justify-center">
+        <h3 className="font-bold text-lg mb-2">{decodeHtmlEntities(schedule.title)}</h3>
+        <div className="flex flex-wrap gap-3 text-base text-gray-500">
+          {categoryInfo.name && (
+            <span className="flex items-center gap-1">
+              <Tag size={16} className="opacity-60" />
+              {categoryInfo.name}
+            </span>
+          )}
+          {sourceName && (
+            <span className="flex items-center gap-1">
+              <Link2 size={16} className="opacity-60" />
+              {sourceName}
+            </span>
+          )}
+        </div>
+        {displayMembers.length > 0 && (
+          <div className="flex flex-wrap gap-1.5 mt-2">
+            {displayMembers.map((name, i) => (
+              <span
+                key={i}
+                className="px-2 py-0.5 bg-primary/10 text-primary text-sm font-medium rounded-full"
+              >
+                {name}
+              </span>
+            ))}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+});
+
+export default UndatedScheduleCard;

frontend/src/components/pc/public/schedule/index.js

@@ -1,5 +1,6 @@
 export { default as Calendar } from './Calendar';
 export { default as ScheduleCard } from './ScheduleCard';
+export { default as UndatedScheduleCard } from './UndatedScheduleCard';
 export { default as BirthdayCard } from './BirthdayCard';
 export { default as DebutCard } from './DebutCard';
 export { default as CategoryFilter } from './CategoryFilter';

frontend/src/pages/pc/public/schedule/Schedule.jsx

@@ -10,6 +10,7 @@ import {
   Calendar,
   CategoryFilter,
   ScheduleCard,
+  UndatedScheduleCard,
   BirthdayCard,
   DebutCard,
 } from '@/components/pc/public';
@@ -255,12 +256,24 @@ function PCSchedule() {
     }
 
     return schedules.filter((s) => {
+      if (s.datePrecision === 'month') return false; // 날짜 미정은 별도 처리
       const matchesDate = selectedDate ? s.date === selectedDate : s.date?.startsWith(currentYearMonth);
       const matchesCategory = selectedCategories.length === 0 || selectedCategories.includes(s.category_id);
       return matchesDate && matchesCategory;
     });
   }, [schedules, selectedDate, currentYearMonth, selectedCategories, isSearchMode, searchTerm, searchResults]);
 
+  // 날짜 미정(월만 확정) 일정 — 선택 날짜와 무관하게 해당 월이면 항상 하단에 표시
+  const undatedSchedules = useMemo(() => {
+    if (isSearchMode) return [];
+    return schedules.filter((s) => {
+      if (s.datePrecision !== 'month') return false;
+      const matchesMonth = s.date?.startsWith(currentYearMonth);
+      const matchesCategory = selectedCategories.length === 0 || selectedCategories.includes(s.category_id);
+      return matchesMonth && matchesCategory;
+    });
+  }, [schedules, currentYearMonth, selectedCategories, isSearchMode]);
+
   // 달력 점 표시용 (카테고리만 필터링, 날짜는 한 달 전체 유지)
   const calendarSchedules = useMemo(() => {
     if (selectedCategories.length === 0) return schedules;
@@ -538,7 +551,7 @@ function PCSchedule() {
                         </AnimatePresence>
                       </div>
                     )}
-                    <span className="text-sm text-gray-400">{filteredSchedules.length}개 일정</span>
+                    <span className="text-sm text-gray-400">{filteredSchedules.length + undatedSchedules.length}개 일정</span>
                   </motion.div>
                 )}
               </AnimatePresence>
@@ -548,7 +561,7 @@ function PCSchedule() {
             <div ref={scrollContainerRef} className="flex-1 min-h-0 overflow-y-auto space-y-4 py-2 pr-2">
               {loading ? (
                 <div className="h-full flex items-center justify-center text-gray-500">로딩 중...</div>
-              ) : filteredSchedules.length > 0 ? (
+              ) : filteredSchedules.length > 0 || undatedSchedules.length > 0 ? (
                 isSearchMode && searchTerm ? (
                   <>
                     <div style={{ height: `${virtualizer.getTotalSize()}px`, width: '100%', position: 'relative' }}>
@@ -593,7 +606,8 @@ function PCSchedule() {
                     </div>
                   </>
                 ) : (
-                  filteredSchedules.map((schedule, index) => (
+                  <>
+                    {filteredSchedules.map((schedule, index) => (
                       <motion.div
                         key={`${schedule.id}-${selectedDate || 'all'}`}
                         initial={{ opacity: 0 }}
@@ -608,7 +622,27 @@ function PCSchedule() {
                           <ScheduleCard schedule={schedule} onClick={() => handleScheduleClick(schedule)} />
                         )}
                       </motion.div>
-                  ))
+                    ))}
+
+                    {/* 날짜 미정 일정 — 우선순위 낮춰 기존 일정 아래 배치 */}
+                    {undatedSchedules.length > 0 && filteredSchedules.length > 0 && (
+                      <div className="flex items-center gap-3 pt-2 text-gray-300">
+                        <div className="flex-1 border-t border-dashed border-gray-200" />
+                        <span className="text-xs font-medium text-gray-400">날짜 미정</span>
+                        <div className="flex-1 border-t border-dashed border-gray-200" />
+                      </div>
+                    )}
+                    {undatedSchedules.map((schedule, index) => (
+                      <motion.div
+                        key={`undated-${schedule.id}`}
+                        initial={{ opacity: 0 }}
+                        animate={{ opacity: 1 }}
+                        transition={{ delay: Math.min(filteredSchedules.length + index, 10) * 0.03 }}
+                      >
+                        <UndatedScheduleCard schedule={schedule} onClick={() => handleScheduleClick(schedule)} />
+                      </motion.div>
+                    ))}
+                  </>
                 )
               ) : isSearchMode && searchTerm ? (
                 isSearchLoading ? (