fix(HEL-494): 日K默认45根并修复问天行业0/205覆盖

悬浮窗和详情页只画最近45个交易日，中枢仍保留250日历史。盘后缺sw_daily时保留成分日线内核，外显走免费申万；成分行情改为全市场快照+分页，不再截成前60只。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

frontend/m/js/pages.js

@@ -3402,9 +3402,9 @@
     const payload = detail && detail.payload ? detail.payload : {};
     const meta = payload.meta || {};
     if (tab === "daily") {
-      const bars = (payload.prices || []).slice(-48);
+      const bars = (payload.prices || []).slice(-45);
       const last = bars.length ? bars[bars.length - 1].trade_date : "";
-      return "日线 · 近48根 · 至 " + (displayCompactDate(last) || "--");
+      return "日线 · 近45根 · 至 " + (displayCompactDate(last) || "--");
     }
     const d = displayCompactDate(meta.intraday_trade_date) || displayCompactDate(meta.trade_date);
     return "分时 · " + (d || "--");
@@ -3702,7 +3702,7 @@
     const W = 360, H = 240, padL = 8, padR = 52, padT = 10, padB = 22;
     const pw = W - padL - padR;
     const ph = H - padT - padB;
-    const prices = (payload.prices || []).slice(-48);
+    const prices = (payload.prices || []).slice(-45);
 
     if (prices.length < 2) return emptyChart("日线数据暂不可用");
 

frontend/pages.config.js

@@ -68,10 +68,10 @@
     "/pages/sentiment/page.js?v=20260729-1",
     "/pages/pools/page.js?v=20260820-1",
     "/pages/market/breadth.js?v=20260803-1",
-    "/pages/market/charts.js?v=20260803-1",
-    "/pages/market/entity-detail.js?v=20260803-1",
-    "/pages/market/stock-detail.js?v=20260803-1",
-    "/pages/market/preview.js?v=20260806-1",
+    "/pages/market/charts.js?v=20260908-1",
+    "/pages/market/entity-detail.js?v=20260908-1",
+    "/pages/market/stock-detail.js?v=20260908-1",
+    "/pages/market/preview.js?v=20260908-1",
     "/pages/market/search.js?v=20260803-1",
     "/pages/market/bindings.js?v=20260803-1",
     "/pages/ladder/page.js?v=20260820-1",

frontend/pages/market/charts.js

@@ -1,3 +1,16 @@
+const DAILY_CHART_BARS = 45;
+
+function visibleDailyPrices(prices) {
+  return (prices || []).slice(-DAILY_CHART_BARS);
+}
+
+function dailyChartSourceLabel(prices, notice) {
+  const count = visibleDailyPrices(prices).length;
+  const base = `日 K 行情 · ${count} 个交易日`;
+  const text = String(notice || "").trim();
+  return text ? `${base} · ${text}` : base;
+}
+
 function currentChartPalette() {
   const style = getComputedStyle(document.documentElement);
   const color = (token, fallback) => style.getPropertyValue(token).trim() || fallback;
@@ -56,7 +69,8 @@ function drawCandlestick(context, x, item, priceY, candleWidth, palette = curren
 
 function drawPriceChart(prices) {
   const canvas = elements.priceChart;
-  if (!prices?.length) {
+  const visible = visibleDailyPrices(prices);
+  if (!visible.length) {
     clearPriceChart("暂无日 K 数据");
     return;
   }
@@ -81,15 +95,15 @@ function drawPriceChart(prices) {
   const gap = 12;
   const priceBottom = height - bottom - volumeHeight - gap;
   const plotWidth = width - left - right;
-  const highs = prices.map((item) => number(item.high));
-  const lows = prices.map((item) => number(item.low));
+  const highs = visible.map((item) => number(item.high));
+  const lows = visible.map((item) => number(item.low));
   const maximum = Math.max(...highs);
   const minimum = Math.min(...lows);
   const range = Math.max(maximum - minimum, maximum * 0.01, 0.01);
-  const volumes = prices.map((item) => number(item.volume));
+  const volumes = visible.map((item) => number(item.volume));
   const maxVolume = Math.max(...volumes, 1);
   const priceY = (value) => top + (maximum - value) / range * (priceBottom - top);
-  const step = plotWidth / prices.length;
+  const step = plotWidth / visible.length;
   const candleWidth = clamp(step * 0.62, 2, 8);
 
   context.strokeStyle = palette.grid;
@@ -105,7 +119,7 @@ function drawPriceChart(prices) {
     context.fillText((maximum - range * line / 4).toFixed(2), left - 5, y + 4);
   }
 
-  prices.forEach((item, index) => {
+  visible.forEach((item, index) => {
     const x = left + step * index + step / 2;
     const color = drawCandlestick(context, x, item, priceY, candleWidth, palette);
     const volumeBarHeight = number(item.volume) / maxVolume * volumeHeight;
@@ -117,10 +131,10 @@ function drawPriceChart(prices) {
 
   context.textAlign = "center";
   context.fillStyle = palette.axis;
-  const labelIndexes = [0, Math.floor((prices.length - 1) / 2), prices.length - 1];
+  const labelIndexes = [0, Math.floor((visible.length - 1) / 2), visible.length - 1];
   labelIndexes.forEach((index) => {
     const x = left + step * index + step / 2;
-    context.fillText(String(prices[index].trade_date).slice(5), x, height - 5);
+    context.fillText(String(visible[index].trade_date).slice(5), x, height - 5);
   });
 }
 
@@ -301,7 +315,7 @@ function drawIntradayPreviewChart(points, dailyPrices, referenceClose = 0) {
 
 function drawDailyPreviewChart(prices) {
   const { context, width, height, palette } = prepareStockPreviewCanvas();
-  const visible = prices.slice(-45);
+  const visible = visibleDailyPrices(prices);
   const visibleStart = prices.length - visible.length;
   const left = 45;
   const right = 10;

frontend/pages/market/entity-detail.js

@@ -113,13 +113,13 @@ function renderEntityDetailMetrics(metrics) {
 }
 
 function drawEntityDetailChart(series, canvas = elements.entityDetailChart) {
-  const candles = (series || []).filter((item) => number(item.close) > 0).map((item) => {
+  const candles = visibleDailyPrices((series || []).filter((item) => number(item.close) > 0).map((item) => {
     const close = number(item.close);
     const open = number(item.open) || close;
     const high = Math.max(number(item.high) || close, open, close);
     const low = Math.min(number(item.low) || close, open, close);
     return { ...item, open, high, low, close };
-  });
+  }));
   if (!candles.length) {
     clearEntityDetailChart("暂无日 K 数据", canvas);
     return;

frontend/pages/market/preview.js

@@ -368,10 +368,7 @@ function selectStockPreviewChart(chart) {
   } else if ((payload.prices || []).length) {
     setText("stockPreviewDate", payload.meta?.trade_date || "最新行情");
     const notice = String(payload.meta?.notice || "").trim();
-    setText(
-      "stockPreviewSource",
-      notice ? `日 K 行情 · ${payload.prices.length} 个交易日 · ${notice}` : `日 K 行情 · ${payload.prices.length} 个交易日`,
-    );
+    setText("stockPreviewSource", dailyChartSourceLabel(payload.prices, notice));
     drawDailyPreviewChart(payload.prices);
   } else {
     setText("stockPreviewDate", payload.meta?.trade_date || "最新行情");

frontend/pages/market/stock-detail.js

@@ -46,10 +46,7 @@ async function openStock(code, fallback = null) {
     updateWatchButton();
     if (state.stockDetailChartMode === "daily") {
       const notice = String(payload.meta?.notice || "").trim();
-      setText(
-        "chartSource",
-        notice ? `日 K 行情 · ${payload.prices.length} 个交易日 · ${notice}` : `日 K 行情 · ${payload.prices.length} 个交易日`,
-      );
+      setText("chartSource", dailyChartSourceLabel(payload.prices, notice));
       requestAnimationFrame(() => drawPriceChart(payload.prices || []));
     }
   } catch (error) {
@@ -69,9 +66,7 @@ async function selectStockDetailChart(mode) {
     const notice = String(state.stockDetail?.meta?.notice || "").trim();
     setText(
       "chartSource",
-      prices.length
-        ? (notice ? `日 K 行情 · ${prices.length} 个交易日 · ${notice}` : `日 K 行情 · ${prices.length} 个交易日`)
-        : "正在加载行情",
+      prices.length ? dailyChartSourceLabel(prices, notice) : "正在加载行情",
     );
     if (prices.length) requestAnimationFrame(() => drawPriceChart(prices));
     else clearPriceChart("正在加载日 K 数据");