refactor(realestate): collect_listings MOLIT 전용화(네이버는 워커 ingest로 이전)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

realestate-lab/app/listing_collector.py

@@ -168,20 +168,14 @@ def _fetch_naver_all() -> tuple:
 
 
 def collect_listings() -> dict:
-    naver_ok = True
-    new_count = total = 0
-    molit_diag = naver_diag = None
+    """MOLIT 실거래(합법 baseline)만 수집. 네이버 호가는 naver-fetch 워커가
+    /api/internal/realestate/listings-ingest로 push (spec 2026-07-09-naver-listing-worker)."""
+    molit_diag = None
     try:
-        _, molit_diag = _fetch_molit_all()   # 실거래(합법)는 항상 우선 — 안전마진 baseline
+        _, molit_diag = _fetch_molit_all()
     except Exception as e:
         molit_diag = f"exc={type(e).__name__}:{str(e)[:80]}"
         logger.error("MOLIT 수집 오류(안전마진 baseline): %s", e)
-    try:
-        new_count, total = _fetch_naver_all()
-    except requests.RequestException as e:
-        naver_ok = False
-        naver_diag = f"{type(e).__name__}:{str(e)[:80]}"
-        logger.warning("네이버 매물수집 skip(차단/오류) — 안전마진·실거래는 유지: %s", e)
-    diag = f"molit[{molit_diag}] naver[{naver_diag or 'ok'}]"
-    save_listing_collect_log(new_count, total, naver_ok, error=diag)
-    return {"new_count": new_count, "total_count": total, "naver_ok": naver_ok, "diag": diag}
+    diag = f"molit[{molit_diag}] naver[worker]"
+    save_listing_collect_log(0, 0, None, error=diag)
+    return {"new_count": 0, "total_count": 0, "naver_ok": None, "diag": diag}