feat(briefing): date picker + 카드별 읽음/하이라이트 액션

사용자 요청 (2026-05-13):
- 오늘 briefing 만 보여주고 과거 못 보는 게 아쉬움 → 날짜 선택 UI
- 시간대 별 나열은 오히려 불편 → date dropdown 1단계 선택
- 각 카드에 읽음/하이라이트 토글

Schema (migrations 263~266, 단일 statement):
- briefing_topics.is_read BOOL NOT NULL DEFAULT false
- briefing_topics.read_at TIMESTAMPTZ
- briefing_topics.highlighted BOOL NOT NULL DEFAULT false
- briefing_topics.highlighted_at TIMESTAMPTZ

API (app/api/briefing.py):
- TopicResponse 에 id / is_read / read_at / highlighted / highlighted_at 추가
- GET /api/briefing/dates → 사용 가능 날짜 목록 (60일 cap)
  · briefing_date / total_topics / total_articles / status / read_count / highlighted_count
- PATCH /api/briefing/topics/{id}/read body {value: bool} → 읽음 토글
- PATCH /api/briefing/topics/{id}/highlight body {value: bool} → 하이라이트 토글
- 토글 시 *_at 컬럼 자동 설정/NULL

UI (frontend/src/routes/news/+page.svelte):
- 헤더 우측 <select> date dropdown — 최신 + N일치 (highlighted_count 별 표시)
- 선택 시 /api/briefing?date=… 로 해당 날짜 briefing 로드
- 카드 우측 상단 ★ (하이라이트) + 읽음 버튼
- 하이라이트 = Card class ring-2 ring-yellow-400
- 읽음 = 외부 div class opacity-60 (시각 차분화, 펴기 가능)
- 토글 즉시 PATCH 호출 + 로컬 state 갱신

each key topic.topic_rank → topic.id 변경 (이미 unique).

app/api/briefing.py

@@ -43,6 +43,7 @@ class KeyQuote(BaseModel):
 
 
 class TopicResponse(BaseModel):
+    id: int  # 2026-05-13 카드 액션 (read/highlight) 호출용 식별자
     topic_rank: int
     topic_label: str
     headline: str
@@ -56,6 +57,11 @@ class TopicResponse(BaseModel):
     country_count: int
     importance_score: float
     llm_fallback_used: bool
+    # 2026-05-13 사용자 액션 — UI 의 카드별 토글
+    is_read: bool = False
+    read_at: datetime | None = None
+    highlighted: bool = False
+    highlighted_at: datetime | None = None
 
 
 class BriefingResponse(BaseModel):
@@ -94,6 +100,7 @@ def _build_response(b: MorningBriefing) -> BriefingResponse:
     for t in sorted(b.topics, key=lambda x: x.topic_rank):
         topics.append(
             TopicResponse(
+                id=t.id,
                 topic_rank=t.topic_rank,
                 topic_label=t.topic_label,
                 headline=t.headline,
@@ -109,6 +116,10 @@ def _build_response(b: MorningBriefing) -> BriefingResponse:
                 country_count=t.country_count,
                 importance_score=t.importance_score,
                 llm_fallback_used=t.llm_fallback_used,
+                is_read=t.is_read,
+                read_at=t.read_at,
+                highlighted=t.highlighted,
+                highlighted_at=t.highlighted_at,
             )
         )
 
@@ -201,3 +212,112 @@ async def regenerate(
         generation_ms=result["generation_ms"],
         regenerated=result.get("regenerated", True),
     )
+
+
+# ─── 2026-05-13 신규: 날짜 선택 + 카드 액션 ───
+
+
+class BriefingDateSummary(BaseModel):
+    briefing_date: date_type
+    total_topics: int
+    total_articles: int
+    status: str
+    read_count: int      # 사용자가 읽음 처리한 토픽 수
+    highlighted_count: int
+
+
+class TopicActionRequest(BaseModel):
+    value: bool
+
+
+class TopicActionResponse(BaseModel):
+    id: int
+    is_read: bool
+    read_at: datetime | None
+    highlighted: bool
+    highlighted_at: datetime | None
+
+
+@router.get("/dates", response_model=list[BriefingDateSummary])
+async def list_dates(
+    user: Annotated[User, Depends(get_current_user)],
+    session: Annotated[AsyncSession, Depends(get_session)],
+    limit: int = Query(default=60, ge=1, le=365),
+):
+    """사용 가능한 briefing 날짜 목록 (최신 desc). UI date picker 의 데이터 소스."""
+    from sqlalchemy import func, case
+
+    stmt = (
+        select(
+            MorningBriefing.briefing_date,
+            MorningBriefing.total_topics,
+            MorningBriefing.total_articles,
+            MorningBriefing.status,
+            func.count(case((BriefingTopic.is_read.is_(True), 1))).label("read_count"),
+            func.count(case((BriefingTopic.highlighted.is_(True), 1))).label("highlighted_count"),
+        )
+        .outerjoin(BriefingTopic, BriefingTopic.briefing_id == MorningBriefing.id)
+        .group_by(MorningBriefing.id)
+        .order_by(MorningBriefing.briefing_date.desc())
+        .limit(limit)
+    )
+    rows = (await session.execute(stmt)).all()
+    return [
+        BriefingDateSummary(
+            briefing_date=r.briefing_date,
+            total_topics=r.total_topics,
+            total_articles=r.total_articles,
+            status=r.status,
+            read_count=r.read_count or 0,
+            highlighted_count=r.highlighted_count or 0,
+        )
+        for r in rows
+    ]
+
+
+@router.patch("/topics/{topic_id}/read", response_model=TopicActionResponse)
+async def set_topic_read(
+    topic_id: int,
+    body: TopicActionRequest,
+    user: Annotated[User, Depends(get_current_user)],
+    session: Annotated[AsyncSession, Depends(get_session)],
+):
+    """토픽 카드 읽음 토글. value=true → 읽음 + read_at=now / false → 해제 + read_at=NULL."""
+    topic = await session.get(BriefingTopic, topic_id)
+    if topic is None:
+        raise HTTPException(status_code=404, detail=f"topic 없음 id={topic_id}")
+    topic.is_read = body.value
+    topic.read_at = datetime.now() if body.value else None
+    await session.commit()
+    await session.refresh(topic)
+    return TopicActionResponse(
+        id=topic.id,
+        is_read=topic.is_read,
+        read_at=topic.read_at,
+        highlighted=topic.highlighted,
+        highlighted_at=topic.highlighted_at,
+    )
+
+
+@router.patch("/topics/{topic_id}/highlight", response_model=TopicActionResponse)
+async def set_topic_highlight(
+    topic_id: int,
+    body: TopicActionRequest,
+    user: Annotated[User, Depends(get_current_user)],
+    session: Annotated[AsyncSession, Depends(get_session)],
+):
+    """토픽 카드 하이라이트 토글. value=true → highlighted + highlighted_at=now / false → 해제."""
+    topic = await session.get(BriefingTopic, topic_id)
+    if topic is None:
+        raise HTTPException(status_code=404, detail=f"topic 없음 id={topic_id}")
+    topic.highlighted = body.value
+    topic.highlighted_at = datetime.now() if body.value else None
+    await session.commit()
+    await session.refresh(topic)
+    return TopicActionResponse(
+        id=topic.id,
+        is_read=topic.is_read,
+        read_at=topic.read_at,
+        highlighted=topic.highlighted,
+        highlighted_at=topic.highlighted_at,
+    )

app/models/briefing.py

@@ -90,6 +90,12 @@ class BriefingTopic(Base):
     llm_model: Mapped[str | None] = mapped_column(String(100))
     llm_fallback_used: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
 
+    # 2026-05-13 카드별 사용자 액션 (date picker 와 동반).
+    is_read: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
+    read_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    highlighted: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
+    highlighted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+
     created_at: Mapped[datetime] = mapped_column(
         DateTime(timezone=True), nullable=False, default=datetime.now
     )

frontend/src/routes/news/+page.svelte

@@ -19,6 +19,7 @@
   };
 
   type BriefingTopic = {
+    id: number;
     topic_rank: number;
     topic_label: string;
     headline: string;
@@ -32,6 +33,19 @@
     country_count: number;
     importance_score: number;
     llm_fallback_used: boolean;
+    is_read: boolean;
+    read_at: string | null;
+    highlighted: boolean;
+    highlighted_at: string | null;
+  };
+
+  type BriefingDateSummary = {
+    briefing_date: string;
+    total_topics: number;
+    total_articles: number;
+    status: string;
+    read_count: number;
+    highlighted_count: number;
   };
 
   type Briefing = {
@@ -75,18 +89,71 @@
   let briefing = $state<Briefing | null>(null);
   let loading = $state(true);
   let errorMsg = $state<string | null>(null);
+  // 2026-05-13 추가 — 날짜 선택 + 카드 액션
+  let availableDates = $state<BriefingDateSummary[]>([]);
+  let selectedDate = $state<string>('');  // YYYY-MM-DD ('' = 최신)
 
-  onMount(async () => {
+  async function loadBriefing(dateStr: string) {
+    loading = true;
+    errorMsg = null;
     try {
-      briefing = await api<Briefing>('/briefing/latest');
+      const path = dateStr ? `/briefing?date=${dateStr}` : '/briefing/latest';
+      briefing = await api<Briefing>(path);
     } catch (e) {
       const err = e as ApiError;
+      briefing = null;
       errorMsg = err?.status === 404
-        ? '아직 생성된 브리핑이 없습니다. 매일 새벽 05:10 KST 에 자동 생성됩니다.'
+        ? (dateStr ? `${dateStr} 자에는 briefing 이 없습니다.` : '아직 생성된 브리핑이 없습니다. 매일 새벽 05:10 KST 에 자동 생성됩니다.')
         : (err?.detail || '브리핑을 불러오지 못했습니다.');
     } finally {
       loading = false;
     }
+  }
+
+  async function loadDates() {
+    try {
+      availableDates = await api<BriefingDateSummary[]>('/briefing/dates');
+    } catch {
+      availableDates = [];
+    }
+  }
+
+  function onDateChange() {
+    loadBriefing(selectedDate);
+  }
+
+  async function toggleRead(topic: BriefingTopic) {
+    if (!briefing) return;
+    const next = !topic.is_read;
+    try {
+      const r = await api<{ id: number; is_read: boolean; read_at: string | null; highlighted: boolean; highlighted_at: string | null }>(
+        `/briefing/topics/${topic.id}/read`,
+        { method: 'PATCH', body: JSON.stringify({ value: next }) }
+      );
+      topic.is_read = r.is_read;
+      topic.read_at = r.read_at;
+    } catch (e) {
+      console.error('toggleRead failed', e);
+    }
+  }
+
+  async function toggleHighlight(topic: BriefingTopic) {
+    if (!briefing) return;
+    const next = !topic.highlighted;
+    try {
+      const r = await api<{ id: number; is_read: boolean; read_at: string | null; highlighted: boolean; highlighted_at: string | null }>(
+        `/briefing/topics/${topic.id}/highlight`,
+        { method: 'PATCH', body: JSON.stringify({ value: next }) }
+      );
+      topic.highlighted = r.highlighted;
+      topic.highlighted_at = r.highlighted_at;
+    } catch (e) {
+      console.error('toggleHighlight failed', e);
+    }
+  }
+
+  onMount(async () => {
+    await Promise.all([loadDates(), loadBriefing('')]);
   });
 
   const fallbackPct = $derived(
@@ -97,8 +164,29 @@
 </script>
 
 <div class="mx-auto max-w-3xl px-4 py-6 space-y-4">
-  <header class="space-y-1">
+  <header class="space-y-2">
-    <h1 class="text-xl font-semibold">야간 뉴스 브리핑</h1>
+    <div class="flex items-center justify-between gap-3 flex-wrap">
+      <h1 class="text-xl font-semibold">야간 뉴스 브리핑</h1>
+      {#if availableDates.length > 0}
+        <div class="flex items-center gap-2">
+          <label for="briefing-date" class="text-xs text-dim">날짜</label>
+          <select
+            id="briefing-date"
+            bind:value={selectedDate}
+            onchange={onDateChange}
+            class="text-sm border border-default rounded-md px-2 py-1 bg-surface"
+          >
+            <option value="">최신</option>
+            {#each availableDates as d}
+              <option value={d.briefing_date}>
+                {d.briefing_date} · {d.total_topics}토픽
+                {#if d.highlighted_count > 0}⭐{d.highlighted_count}{/if}
+              </option>
+            {/each}
+          </select>
+        </div>
+      {/if}
+    </div>
     <p class="text-sm text-dim">
       {#if briefing}
         {briefing.briefing_date} 새벽 수집 · 총 {briefing.total_articles}건 / {briefing.total_countries}개국 / {briefing.total_topics}개 토픽
@@ -137,8 +225,9 @@
         </div>
       {/if}
 
-      {#each briefing.topics as topic (topic.topic_rank)}
+      {#each briefing.topics as topic (topic.id)}
-        <Card>
+        <div class:opacity-60={topic.is_read}>
+        <Card class={topic.highlighted ? "ring-2 ring-yellow-400" : ""}>
           <div class="space-y-3">
             <div class="flex items-start gap-2">
               <span class="text-xs text-faint shrink-0 pt-1">#{topic.topic_rank}</span>
@@ -154,6 +243,24 @@
                   {topic.country_count}개국 · {topic.article_count}건
                 </p>
               </div>
+              <div class="flex flex-col items-end gap-1 shrink-0">
+                <button
+                  type="button"
+                  onclick={() => toggleHighlight(topic)}
+                  class="text-base leading-none px-1.5 py-0.5 rounded hover:bg-surface"
+                  class:text-yellow-500={topic.highlighted}
+                  class:text-faint={!topic.highlighted}
+                  title={topic.highlighted ? '하이라이트 해제' : '하이라이트'}
+                  aria-label="하이라이트 토글"
+                >★</button>
+                <button
+                  type="button"
+                  onclick={() => toggleRead(topic)}
+                  class="text-xs px-1.5 py-0.5 rounded border border-default hover:bg-surface"
+                  title={topic.is_read ? '읽지 않음으로' : '읽음 처리'}
+                  aria-label="읽음 토글"
+                >{topic.is_read ? '✓읽음' : '읽음'}</button>
+              </div>
             </div>
 
             {#if topic.country_perspectives.length > 0}
@@ -210,6 +317,7 @@
             {/if}
           </div>
         </Card>
+        </div>
       {/each}
     {/if}
   {/if}

migrations/263_briefing_topics_is_read.sql

@@ -0,0 +1,3 @@
+-- 2026-05-13 briefing topic 읽음 표시 — UI 의 카드별 액션.
+ALTER TABLE briefing_topics
+    ADD COLUMN IF NOT EXISTS is_read BOOLEAN NOT NULL DEFAULT false;

migrations/264_briefing_topics_read_at.sql

@@ -0,0 +1,3 @@
+-- 2026-05-13 briefing topic 읽음 시각 — read 토글 시 now() 설정 / 해제 시 NULL.
+ALTER TABLE briefing_topics
+    ADD COLUMN IF NOT EXISTS read_at TIMESTAMPTZ;

migrations/265_briefing_topics_highlighted.sql

@@ -0,0 +1,3 @@
+-- 2026-05-13 briefing topic 하이라이트 — UI 의 카드별 액션.
+ALTER TABLE briefing_topics
+    ADD COLUMN IF NOT EXISTS highlighted BOOLEAN NOT NULL DEFAULT false;

migrations/266_briefing_topics_highlighted_at.sql

@@ -0,0 +1,3 @@
+-- 2026-05-13 briefing topic 하이라이트 시각 — highlight 토글 시 now() 설정 / 해제 시 NULL.
+ALTER TABLE briefing_topics
+    ADD COLUMN IF NOT EXISTS highlighted_at TIMESTAMPTZ;