feat(stock): get_holdings (현재가·손익·KRX판별)

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

stock/app/test_holdings_intel.py

@@ -0,0 +1,17 @@
+from app import holdings_intel as hi
+
+def test_get_holdings_merges_price_and_pnl(monkeypatch):
+    monkeypatch.setattr(hi.db, "get_all_portfolio", lambda: [
+        {"id": 1, "broker": "kis", "ticker": "005930", "name": "삼성전자",
+         "quantity": 10, "avg_price": 70000, "purchase_price": 70000},
+        {"id": 2, "broker": "kis", "ticker": "AAPL", "name": "Apple",
+         "quantity": 5, "avg_price": 200, "purchase_price": 200},
+    ])
+    monkeypatch.setattr(hi.price_fetcher, "get_current_prices",
+                        lambda tickers: {"005930": 77000})  # AAPL 미조회(비KRX)
+    monkeypatch.setattr(hi, "_krx_tickers", lambda: {"005930"})
+    hs = hi.get_holdings()
+    s = {h["ticker"]: h for h in hs}
+    assert s["005930"]["is_krx"] is True
+    assert round(s["005930"]["pnl_rate"], 1) == 10.0   # (77000-70000)/70000
+    assert s["AAPL"]["is_krx"] is False                # KRX 외