fix: KR 등락률순위 API 파라미터 오류 수정 — 스캐너 미동작 해결 (#240)

실전 API가 fid_rank_sort_cls_code='0000'(4자리)를 거부함.
'0'(1자리)으로 수정하고, 실전 응답의 종목코드 키가
mksc_shrn_iscd 대신 stck_shrn_iscd임을 반영하여 파싱 수정.

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

src/broker/kis_api.py

@@ -430,7 +430,7 @@ class KISBroker:
                 "fid_cond_mrkt_div_code": "J",
                 "fid_cond_scr_div_code": "20170",
                 "fid_input_iscd": "0000",
-                "fid_rank_sort_cls_code": "0000",
+                "fid_rank_sort_cls_code": "0",
                 "fid_input_cnt_1": str(limit),
                 "fid_prc_cls_code": "0",
                 "fid_input_price_1": "0",
@@ -466,7 +466,7 @@ class KISBroker:
             rankings = []
             for item in data.get("output", [])[:limit]:
                 rankings.append({
-                    "stock_code": item.get("mksc_shrn_iscd", ""),
+                    "stock_code": item.get("stck_shrn_iscd") or item.get("mksc_shrn_iscd", ""),
                     "name": item.get("hts_kor_isnm", ""),
                     "price": _safe_float(item.get("stck_prpr", "0")),
                     "volume": _safe_float(item.get("acml_vol", "0")),

src/dashboard/app.py

@@ -13,10 +13,11 @@ from fastapi import FastAPI, HTTPException, Query
 from fastapi.responses import FileResponse
 
 
-def create_dashboard_app(db_path: str) -> FastAPI:
+def create_dashboard_app(db_path: str, mode: str = "paper") -> FastAPI:
     """Create dashboard FastAPI app bound to a SQLite database path."""
     app = FastAPI(title="The Ouroboros Dashboard", version="1.0.0")
     app.state.db_path = db_path
+    app.state.mode = mode
 
     @app.get("/")
     def index() -> FileResponse:
@@ -111,7 +112,7 @@ def create_dashboard_app(db_path: str) -> FastAPI:
 
             return {
                 "date": today,
-                "mode": os.getenv("MODE", "paper"),
+                "mode": mode,
                 "markets": market_status,
                 "totals": {
                     "trade_count": total_trades,

src/main.py

@@ -2045,7 +2045,7 @@ def _start_dashboard_server(settings: Settings) -> threading.Thread | None:
             import uvicorn
             from src.dashboard import create_dashboard_app
 
-            app = create_dashboard_app(settings.DB_PATH)
+            app = create_dashboard_app(settings.DB_PATH, mode=settings.MODE)
             uvicorn.run(
                 app,
                 host=settings.DASHBOARD_HOST,

tests/test_broker.py

@@ -354,6 +354,8 @@ class TestFetchMarketRankings:
         assert "ranking/fluctuation" in url
         assert headers.get("tr_id") == "FHPST01700000"
         assert params.get("fid_cond_scr_div_code") == "20170"
+        # 실전 API는 4자리("0000") 거부 — 1자리("0")여야 한다 (#240)
+        assert params.get("fid_rank_sort_cls_code") == "0"
 
     @pytest.mark.asyncio
     async def test_volume_returns_parsed_rows(self, broker: KISBroker) -> None:
@@ -376,6 +378,27 @@ class TestFetchMarketRankings:
         assert result[0]["price"] == 75000.0
         assert result[0]["change_rate"] == 2.5
 
+    @pytest.mark.asyncio
+    async def test_fluctuation_parses_stck_shrn_iscd(self, broker: KISBroker) -> None:
+        """실전 API는 mksc_shrn_iscd 대신 stck_shrn_iscd를 반환한다 (#240)."""
+        items = [
+            {
+                "stck_shrn_iscd": "015260",
+                "hts_kor_isnm": "에이엔피",
+                "stck_prpr": "794",
+                "acml_vol": "4896196",
+                "prdy_ctrt": "29.74",
+                "vol_inrt": "0",
+            }
+        ]
+        mock_resp = _make_ranking_mock(items)
+        with patch("aiohttp.ClientSession.get", return_value=mock_resp):
+            result = await broker.fetch_market_rankings(ranking_type="fluctuation")
+
+        assert len(result) == 1
+        assert result[0]["stock_code"] == "015260"
+        assert result[0]["change_rate"] == 29.74
+
 
 # ---------------------------------------------------------------------------
 # KRX tick unit / round-down helpers (issue #157)

tests/test_dashboard.py

@@ -415,28 +415,37 @@ def test_status_circuit_breaker_unknown_when_no_data(tmp_path: Path) -> None:
     assert cb["current_pnl_pct"] is None
 
 
-def test_status_mode_paper(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
-    """MODE=paper일 때 status 응답에 mode=paper가 포함돼야 한다."""
-    monkeypatch.setenv("MODE", "paper")
-    app = _app(tmp_path)
+def test_status_mode_paper(tmp_path: Path) -> None:
+    """mode=paper로 생성하면 status 응답에 mode=paper가 포함돼야 한다."""
+    db_path = tmp_path / "dashboard_test.db"
+    conn = init_db(str(db_path))
+    _seed_db(conn)
+    conn.close()
+    app = create_dashboard_app(str(db_path), mode="paper")
     get_status = _endpoint(app, "/api/status")
     body = get_status()
     assert body["mode"] == "paper"
 
 
-def test_status_mode_live(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
-    """MODE=live일 때 status 응답에 mode=live가 포함돼야 한다."""
-    monkeypatch.setenv("MODE", "live")
-    app = _app(tmp_path)
+def test_status_mode_live(tmp_path: Path) -> None:
+    """mode=live로 생성하면 status 응답에 mode=live가 포함돼야 한다."""
+    db_path = tmp_path / "dashboard_test.db"
+    conn = init_db(str(db_path))
+    _seed_db(conn)
+    conn.close()
+    app = create_dashboard_app(str(db_path), mode="live")
     get_status = _endpoint(app, "/api/status")
     body = get_status()
     assert body["mode"] == "live"
 
 
-def test_status_mode_default_paper(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
-    """MODE 환경변수가 없으면 mode 기본값은 paper여야 한다."""
-    monkeypatch.delenv("MODE", raising=False)
-    app = _app(tmp_path)
+def test_status_mode_default_paper(tmp_path: Path) -> None:
+    """mode 파라미터 미전달 시 기본값은 paper여야 한다."""
+    db_path = tmp_path / "dashboard_test.db"
+    conn = init_db(str(db_path))
+    _seed_db(conn)
+    conn.close()
+    app = create_dashboard_app(str(db_path))
     get_status = _endpoint(app, "/api/status")
     body = get_status()
     assert body["mode"] == "paper"