feat(selection): add Zhixing line indicators to selection chart and update related components

zhixing-server/src/zhixing_server/modules/selection/presentation/http.py

@@ -147,7 +147,7 @@ class SelectionStockResponse(BaseModel):
 
 
 class SelectionChartPointResponse(BaseModel):
-    """One date-aligned qfq OHLCV and KDJ point."""
+    """One date-aligned qfq OHLCV, KDJ, and Zhixing-line point."""
 
     trade_date: date
     open: float | None
@@ -158,6 +158,8 @@ class SelectionChartPointResponse(BaseModel):
     k: float | None
     d: float | None
     j: float | None
+    trend_white: float | None
+    trend_yellow: float | None
 
 
 class SelectionChartResponse(BaseModel):
@@ -268,7 +270,7 @@ def get_selection_chart(
     target_trade_date: date,
     service: Annotated[GetSelectionChart, Depends(get_selection_chart_service)],
 ) -> SelectionChartResponse:
-    """Return one stock's bounded qfq OHLCV and KDJ history."""
+    """Return one stock's bounded qfq OHLCV, KDJ, and Zhixing-line history."""
 
     try:
         chart = service.execute(ts_code, target_trade_date)
@@ -482,6 +484,8 @@ def _chart_response(chart: SelectionChart) -> SelectionChartResponse:
                 k=point.k,
                 d=point.d,
                 j=point.j,
+                trend_white=point.trend_white,
+                trend_yellow=point.trend_yellow,
             )
             for point in chart.points
         ],