refactor(realestate-db): tuple param + status column in unnotified query

- mark_matches_notified: pass tuple(match_ids) to conn.execute for consistency
- get_unnotified_matches: add a.status to SELECT so notifier/formatter can skip stale '완료' matches
- add regression test: test_get_unnotified_matches_includes_status

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

realestate-lab/tests/test_db_functions.py

@@ -84,3 +84,17 @@ def test_mark_matches_notified_sets_timestamp():
     with _conn() as conn:
         row = conn.execute("SELECT notified_at FROM match_results WHERE id = ?", (match_id,)).fetchone()
     assert row["notified_at"] is not None
+
+
+def test_get_unnotified_matches_includes_status():
+    from app.db import get_unnotified_matches
+    aid = _seed_announcement("StatusA", "청약중", hmno="ST", pno="1")
+    with _conn() as conn:
+        conn.execute("""
+            INSERT INTO match_results (announcement_id, model_id, match_score, match_reasons, eligible_types, is_new)
+            VALUES (?, NULL, 80, '[]', '[]', 1)
+        """, (aid,))
+    matches = get_unnotified_matches(min_score=70)
+    status_matches = [m for m in matches if m["house_nm"] == "StatusA"]
+    assert len(status_matches) == 1
+    assert status_matches[0]["status"] == "청약중"