行情区图表：成交量、十字线 OHLCV、可视高低点、日线满 500 根

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

hub_kline_store.py

@@ -11,6 +11,7 @@ from typing import Any, Callable, Optional
 from hub_ohlcv_lib import (
     TIMEFRAME_MS,
     bar_limit_for_timeframe,
+    chart_fetch_start_ms,
     format_price_by_tick,
     last_closed_bar_open_ms,
     normalize_chart_timeframe,
@@ -233,14 +234,15 @@ def resolve_chart_bars(
 
     need = bar_limit_for_timeframe(tf)
     now_ms = int(time.time() * 1000)
-    start_ms = window_start_ms(tf, need, retention_days(), now_ms)
+    fetch_start_ms = chart_fetch_start_ms(tf, need, now_ms)
+    db_read_start_ms = window_start_ms(tf, need, retention_days(), now_ms)
     last_closed = last_closed_bar_open_ms(tf, now_ms)
 
     db_rows: list[dict[str, Any]] = []
     if not force_refresh:
         period_ms = TIMEFRAME_MS[tf]
         db_rows = load_bars_range(
-            ex_k, sym, tf, max(0, start_ms - period_ms), now_ms + period_ms, db_path
+            ex_k, sym, tf, max(0, db_read_start_ms - period_ms), now_ms + period_ms, db_path
         )
 
     newest_db = db_rows[-1]["open_time_ms"] if db_rows else None
@@ -253,7 +255,7 @@ def resolve_chart_bars(
     remote_err: Optional[str] = None
 
     if need_fetch:
-        since = start_ms
+        since = fetch_start_ms
         if db_rows and not force_refresh:
             since = min(since, int(db_rows[0]["open_time_ms"]))
         remote = remote_fetch(
@@ -265,7 +267,7 @@ def resolve_chart_bars(
         if remote.get("ok") and remote.get("bars"):
             fetched = upsert_bars(ex_k, sym, tf, remote["bars"], db_path)
             price_tick = remote.get("price_tick")
-            db_rows = load_bars_range(ex_k, sym, tf, start_ms, now_ms, db_path)
+            db_rows = load_bars_range(ex_k, sym, tf, fetch_start_ms, now_ms, db_path)
         else:
             remote_err = remote.get("msg") or remote.get("error") or "实例拉取 K 线失败"
             if not db_rows:
@@ -282,9 +284,6 @@ def resolve_chart_bars(
     if fetched:
         from_cache = max(0, len(candles) - min(fetched, len(candles)))
 
-    hi = max(candles, key=lambda x: x["high"])
-    lo = min(candles, key=lambda x: x["low"])
-
     return {
         "ok": True,
         "symbol": sym,
@@ -297,8 +296,6 @@ def resolve_chart_bars(
         "fetched": fetched,
         "purged": purged,
         "price_tick": price_tick,
-        "range_high": {"time": hi["time"], "price": hi["high"]},
-        "range_low": {"time": lo["time"], "price": lo["low"]},
         "stale": bool(remote_err),
         "stale_message": remote_err if remote_err else None,
         "updated_at": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()),