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>

hub_kline_store.py

@@ -256,7 +256,13 @@ def resolve_chart_bars(
 
     if need_fetch:
         since = fetch_start_ms
-        if db_rows and not force_refresh and newest_ok and len(db_rows) >= need:
+        # 仅当库内根数已够且缺口在尾部时做增量拉取；否则全量回看，避免 Gate from>to
+        if (
+            db_rows
+            and not force_refresh
+            and newest_ok
+            and len(db_rows) >= need
+        ):
             since = max(0, int(newest_db) - period_ms * 2)
         remote = remote_fetch(
             symbol=sym,

hub_ohlcv_lib.py

@@ -275,18 +275,33 @@ def _paginate_fetch_ohlcv(
     else:
         since = max(0, int(time.time() * 1000) - want * period_ms)
 
+    now_ms = int(time.time() * 1000)
     guard = 0
     prev_since = None
     while len(collected) < want and guard < 80:
         guard += 1
+        if since >= now_ms:
+            break
         req_limit = min(chunk_max, want - len(collected))
-        batch = exchange.fetch_ohlcv(
-            ex_sym, timeframe=tf, since=since, limit=req_limit
-        )
+        try:
+            batch = exchange.fetch_ohlcv(
+                ex_sym, timeframe=tf, since=since, limit=req_limit
+            )
+        except Exception as e:
+            err = str(e).lower()
+            if collected and (
+                "from" in err
+                and "to" in err
+                or "invalid request parameter" in err
+            ):
+                break
+            raise
         if not batch:
             break
         collected.extend(batch)
         next_since = _next_since_from_batch(batch, period_ms)
+        if next_since >= now_ms:
+            break
         if prev_since is not None and next_since <= prev_since:
             break
         prev_since = since
@@ -385,6 +400,16 @@ def fetch_ohlcv_for_hub(
             if len(merged) > want:
                 merged = merged[-want:]
 
+        if not merged:
+            try:
+                tail = exchange.fetch_ohlcv(
+                    ex_sym, timeframe=tf, limit=min(want, 300)
+                )
+                merged = _bars_to_dicts(tail or [])
+                if len(merged) > want:
+                    merged = merged[-want:]
+            except Exception:
+                pass
         if not merged:
             return {"ok": False, "msg": "交易所未返回 K 线"}
 

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;

tests/test_hub_ohlcv_lib.py

@@ -163,6 +163,34 @@ class TestHubOhlcvLib(unittest.TestCase):
         self.assertTrue(bars_spacing_matches_timeframe(bars, "12h"))
         self.assertEqual(ex.calls[0]["timeframe"], "1h")
 
+    def test_pagination_stops_when_next_since_reaches_now(self):
+        """Gate 等：分页 since 不得越过当前时间，避免 from>to。"""
+        from hub_ohlcv_lib import TIMEFRAME_MS
+
+        step = TIMEFRAME_MS["1d"]
+        now_ms = int(__import__("time").time() * 1000)
+        # 最后一页最后一根 K 的 next_since 将 >= now_ms，应停止不再请求
+        last_open = ((now_ms // step) - 2) * step
+        page = [
+            [last_open - step, 1.0, 1.1, 0.9, 1.0, 10.0],
+            [last_open, 1.1, 1.2, 1.0, 1.1, 11.0],
+        ]
+        ex = _FakeExchange([page])
+
+        out = fetch_ohlcv_for_hub(
+            symbol="ONDO/USDT",
+            timeframe="1d",
+            since_ms=last_open - step * 5,
+            limit=10,
+            normalize_symbol_input=lambda s: str(s).strip().upper(),
+            normalize_exchange_symbol=lambda s: f"{s}:USDT" if ":" not in s else s,
+            ensure_markets_loaded=lambda: None,
+            exchange=ex,
+        )
+        self.assertTrue(out.get("ok"))
+        self.assertGreaterEqual(len(out.get("bars") or []), 2)
+        self.assertLessEqual(len(ex.calls), 4)
+
     def test_aggregate_ohlcv_bars_buckets(self):
         from hub_ohlcv_lib import TIMEFRAME_MS