Add a Monday-morning weekly recap briefing

No US session closes into Monday KST, so Mondays (default 07:00, cron
in the daemon with restart catch-up) now publish a weekly review built
entirely from stored data: the quotes table collapsed into week-over-
week changes and the week's daily briefing headlines as the narrative.
The recap is a BriefingResult kind="weekly" reusing MarketPayload, so
the store, verification pass, all delivery channels (Blogger title
"미국 주간 리뷰 <monday>") and the dashboard (주간 리뷰 badge) work
unchanged. Manual runs via `run-once --weekly [--date <monday>]`.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

us2kr/render.py

@@ -221,6 +221,45 @@ def render_markdown(payload: MarketPayload, report: Report | None, model_used: s
     return "\n".join(lines).rstrip() + "\n"
 
 
+# ------------------------------------------------------------------ weekly recap
+
+
+def _weekly_report_sections(report: Report) -> list[str]:
+    out: list[str] = []
+    if _text(report.headline):
+        out += _section("주간 총평", [f"**{_text(report.headline)}**"])
+    if _text(report.market_overview):
+        out += _section("주간 개요", [_text(report.market_overview)])
+    out += _section("지난주 주요 사건", _bullets(report.key_drivers))
+    if _text(report.rates_fx_commodities):
+        out += _section("금리·환율·원자재", [_text(report.rates_fx_commodities)])
+    out += _section("이번 주 한국 장 시사점", _bullets(report.korea_implications))
+    out += _section("이번 주 볼 것", _bullets(report.watchlist_today))
+    out += _section("리스크", _bullets(report.risk_flags))
+    return out
+
+
+def render_weekly_markdown(payload: MarketPayload, report: Report | None, week_sessions: list) -> str:
+    """Render the Monday weekly recap. `payload.quotes` carry week-over-week changes."""
+    first = week_sessions[0].isoformat() if week_sessions else "?"
+    last = week_sessions[-1].isoformat() if week_sessions else "?"
+    lines = [f"# 🇺🇸→🇰🇷 미국 주간 리뷰 — {payload.krx_date.isoformat()} (미 {first} ~ {last})"]
+    gen_kst = _kst(payload.generated_at).strftime("%Y-%m-%d %H:%M")
+    lines.append(f"지난주 미국 거래일 {len(week_sessions)}일 · 생성: {gen_kst} KST")
+    if not payload.krx_open_today:
+        lines.append("⚠️ 오늘 한국 휴장")
+    if report is None:
+        lines.append("🧩 축소 모드(LLM 요약 없음)")
+    lines.append("")
+    if report is not None:
+        lines += _weekly_report_sections(report)
+    for g, title, qs in _ordered_groups(payload):
+        lines += _section(f"📊 {title} — 주간 변동", _quote_table(g, qs))
+    lines += _section("일별 헤드라인", _bullets(payload.history_notes))
+    lines += _section("수집 누락", _bullets(payload.data_gaps))
+    return "\n".join(lines).rstrip() + "\n"
+
+
 # ------------------------------------------------------------------ Telegram HTML
 
 _LINK_RE = re.compile(r"\[([^\]]+)\]\(([^)\s]+)\)")