fix: UTC+8 market chart times and archive full history K-line load

Co-authored-by: Cursor <cursoragent@cursor.com>

manual_trading_hub/static/chart.js

@@ -79,6 +79,69 @@
     "1w": "周线",
   };
   const TF_DIGIT_TIMEOUT_MS = 650;
+  const CHART_TZ_OFFSET_SEC = 8 * 60 * 60;
+
+  function pad2(n) {
+    return n < 10 ? "0" + n : String(n);
+  }
+
+  function utcSecToBjDate(utcSec) {
+    return new Date((Number(utcSec) + CHART_TZ_OFFSET_SEC) * 1000);
+  }
+
+  function formatChartTimeBj(utcSec, withDate) {
+    const d = utcSecToBjDate(utcSec);
+    const h = pad2(d.getUTCHours());
+    const mi = pad2(d.getUTCMinutes());
+    if (!withDate) return h + ":" + mi;
+    return (
+      d.getUTCFullYear() +
+      "-" +
+      pad2(d.getUTCMonth() + 1) +
+      "-" +
+      pad2(d.getUTCDate()) +
+      " " +
+      h +
+      ":" +
+      mi
+    );
+  }
+
+  function chartLocalizationBj() {
+    return {
+      locale: "zh-CN",
+      dateFormat: "yyyy-MM-dd",
+      timeFormatter: function (time) {
+        if (typeof time === "number") return formatChartTimeBj(time, true);
+        if (time && typeof time === "object" && time.year) {
+          return time.year + "-" + pad2(time.month) + "-" + pad2(time.day);
+        }
+        return "";
+      },
+      tickMarkFormatter: function (time, tickMarkType) {
+        if (typeof time !== "number") {
+          if (time && typeof time === "object" && time.year) {
+            return time.year + "-" + pad2(time.month) + "-" + pad2(time.day);
+          }
+          return "";
+        }
+        const d = utcSecToBjDate(time);
+        if (tickMarkType === 0) return String(d.getUTCFullYear());
+        if (tickMarkType === 1) return pad2(d.getUTCMonth() + 1);
+        if (tickMarkType === 2) return pad2(d.getUTCDate());
+        return formatChartTimeBj(time, false);
+      },
+    };
+  }
+
+  function buildChartLocalization() {
+    const loc = chartLocalizationBj();
+    loc.priceFormatter = function (p) {
+      return fmtPrice(p);
+    };
+    return loc;
+  }
+
   const chartHost = document.getElementById("market-chart");
   if (!chartHost) return;
 
@@ -1649,11 +1712,7 @@
     applyPriceFormatToSeries(indSeries.ema55, pf);
     if (chart) {
       chart.applyOptions({
-        localization: {
-          priceFormatter: function (p) {
-            return fmtPrice(p);
-          },
-        },
+        localization: buildChartLocalization(),
       });
     }
   }
@@ -1933,6 +1992,7 @@
         horzLines: { visible: false },
       },
       rightPriceScale: { borderColor: tp.border, autoScale: true },
+      localization: buildChartLocalization(),
       timeScale: {
         borderColor: tp.border,
         timeVisible: true,