feat(hub): add open/close arrows on archive chart with continuous klines

Span chart window across hold period, fill 5m gaps for smooth aggregation, and mark entry/exit with lightweight-charts arrows.

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

manual_trading_hub/hub.py

@@ -1732,6 +1732,8 @@ def api_archive_ohlcv(
     timeframe: str = ARCHIVE_DEFAULT_TIMEFRAME,
     mode: str = "hold",
     anchor_ms: str = "",
+    opened_ms: str = "",
+    closed_ms: str = "",
     at: str = "",
     bars: str = "",
 ):
@@ -1741,6 +1743,8 @@ def api_archive_ohlcv(
         raise HTTPException(status_code=400, detail="缺少 exchange_key 或 symbol")
     init_archive_db()
     anchor = _parse_anchor_ms(at, anchor_ms)
+    open_ms = _parse_anchor_ms("", opened_ms)
+    close_ms = _parse_anchor_ms("", closed_ms)
     try:
         bar_n = int(bars) if (bars or "").strip().isdigit() else ARCHIVE_VISIBLE_BARS_DEFAULT
     except ValueError:
@@ -1750,6 +1754,8 @@ def api_archive_ohlcv(
         sym,
         timeframe,
         anchor_ms=anchor,
+        opened_ms=open_ms,
+        closed_ms=close_ms,
         mode=mode,
         bars=bar_n,
     )