refactor: backend→lotto 서비스 리네이밍 + lotto.db 레거시 테이블 스키마 제거

- backend/ → lotto/ 디렉토리 이동
- docker-compose: lotto-backend→lotto, lotto-frontend→frontend
- deploy scripts, nginx, agent-office config 네이밍 일괄 반영
- lotto/app/db.py에서 todos·blog_posts CREATE TABLE 제거 (personal로 이관 완료)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

lotto/app/routers/curator.py

@@ -0,0 +1,24 @@
+"""큐레이터 입력 엔드포인트 — agent-office에서만 호출."""
+from fastapi import APIRouter
+from ..curator_helpers import collect_candidates, build_context
+from .. import db
+
+router = APIRouter(prefix="/api/lotto/curator")
+
+
+@router.get("/candidates")
+def candidates(n: int = 20):
+    ctx = build_context()
+    hot = set(ctx["hot_numbers"])
+    cold = set(ctx["cold_numbers"])
+    latest = db.get_latest_draw()
+    draw_no = (latest["drw_no"] + 1) if latest else 0
+    items = collect_candidates(n, hot, cold)
+    return {"draw_no": draw_no, "candidates": items}
+
+
+@router.get("/context")
+def context():
+    latest = db.get_latest_draw()
+    draw_no = (latest["drw_no"] + 1) if latest else 0
+    return {"draw_no": draw_no, **build_context()}