feat: 优化界面并补充网格成交分析

tests/test_open_grid_lots.py

@@ -2,7 +2,7 @@ from datetime import date, timedelta
 from decimal import Decimal
 
 from grid_trading.domain.models import Trade, TradeGroup, TradeSide
-from grid_trading.domain.open_grid_lots import calculate_open_grid_lots
+from grid_trading.domain.open_grid_lots import calculate_grid_trade_matches, calculate_open_grid_lots
 
 
 def make_trade(
@@ -80,6 +80,52 @@ def test_calculate_open_grid_lots_fifo_matches_grid_sells_against_grid_buys():
     assert lot.status == "可卖"
 
 
+def test_calculate_grid_trade_matches_splits_sell_against_fifo_buy_lots():
+    today = date(2026, 7, 9)
+    trades = [
+        make_trade(
+            trade_id=1,
+            trade_date=today - timedelta(days=3),
+            side=TradeSide.BUY,
+            price="10.00",
+            quantity=300,
+        ),
+        make_trade(
+            trade_id=2,
+            trade_date=today - timedelta(days=2),
+            side=TradeSide.BUY,
+            price="9.50",
+            quantity=200,
+        ),
+        make_trade(
+            trade_id=3,
+            trade_date=today - timedelta(days=1),
+            side=TradeSide.SELL,
+            price="10.30",
+            quantity=350,
+        ),
+    ]
+
+    matches = calculate_grid_trade_matches(trades, as_of=today)
+
+    assert len(matches) == 2
+    assert matches[0].sell_trade_id == 3
+    assert matches[0].sell_date == today - timedelta(days=1)
+    assert matches[0].sell_price == Decimal("10.30")
+    assert matches[0].buy_trade_id == 1
+    assert matches[0].buy_date == today - timedelta(days=3)
+    assert matches[0].buy_price == Decimal("10.00")
+    assert matches[0].matched_quantity == 300
+    assert matches[0].buy_amount == Decimal("3000.00")
+    assert matches[0].sell_amount == Decimal("3090.00")
+    assert matches[0].gross_profit == Decimal("90.00")
+    assert matches[1].buy_trade_id == 2
+    assert matches[1].matched_quantity == 50
+    assert matches[1].buy_amount == Decimal("475.00")
+    assert matches[1].sell_amount == Decimal("515.00")
+    assert matches[1].gross_profit == Decimal("40.00")
+
+
 def test_calculate_open_grid_lots_reports_not_reached_and_missing_quote_statuses():
     today = date(2026, 7, 9)
     trades = [