fix(hub): 修复行情区 K 线 Gate 分页与图表 unexpected base

Gate OHLCV 分页在接近当前时间时停止并容错 from>to；分页失败时用 limit 兜底。chart.js 为 priceFormat 增加整数 base，setData 失败时回退默认精度。

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

manual_trading_hub/static/chart.js

@@ -1013,7 +1013,18 @@
     const minMove =
       tick != null && Number.isFinite(Number(tick)) && Number(tick) > 0 ? Number(tick) : 0.01;
     const precision = decimalsFromTick(minMove) ?? 2;
-    return { type: "price", precision: precision, minMove: minMove };
+    const fmt = { type: "price", precision: precision, minMove: minMove };
+    // 避免 minMove 浮点导致 lightweight-charts 报 "unexpected base"
+    if (minMove > 0 && minMove < 1) {
+      const inv = 1 / minMove;
+      if (Number.isFinite(inv) && inv >= 1 && inv <= 1e15) {
+        const base = Math.round(inv);
+        if (base > 0 && Math.abs(inv - base) / Math.max(inv, 1) < 1e-6) {
+          fmt.base = base;
+        }
+      }
+    }
+    return fmt;
   }
 
   function applyChartPriceFormat() {
@@ -1507,8 +1518,15 @@
       applyChartPriceFormat();
       lastCandles = data.candles;
       indexCandles(lastCandles);
-      candleSeries.setData(lastCandles);
-      volumeSeries.setData(buildVolumeData(lastCandles));
+      try {
+        candleSeries.setData(lastCandles);
+        volumeSeries.setData(buildVolumeData(lastCandles));
+      } catch (setErr) {
+        priceTick = null;
+        applyChartPriceFormat();
+        candleSeries.setData(lastCandles);
+        volumeSeries.setData(buildVolumeData(lastCandles));
+      }
       applyChartRightGap();
       if (resetView) {
         lastViewKey = vKey;