本地监控止盈止损、盘前自动连CTP，并完善保证金与推荐手数。

- 止盈止损改为程序本地监控，触发后市价平仓（含跳空）
- 交易前30分钟后台自动连接 CTP
- 保证金占用上限默认30%，可在系统设置修改
- K线标准蜡烛图红跌绿涨，费率表全宽固定表头
- 品种推荐按保证金比例×总资金计算推荐手数

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

ctp_premarket_connect.py

@@ -0,0 +1,62 @@
+"""交易前自动连接 CTP（默认开盘前 30 分钟）。"""
+from __future__ import annotations
+
+import logging
+import os
+import threading
+import time
+from typing import Callable
+
+from market_sessions import in_premarket_connect_window
+from vnpy_bridge import ctp_start_connect, ctp_status
+
+logger = logging.getLogger(__name__)
+
+CHECK_INTERVAL_SEC = 60
+DEFAULT_MINUTES_BEFORE = 30
+
+
+def _premarket_enabled() -> bool:
+    return (os.getenv("CTP_PREMARKET_CONNECT", "true") or "true").strip().lower() in (
+        "1",
+        "true",
+        "yes",
+    )
+
+
+def _minutes_before_open() -> int:
+    try:
+        return max(5, int(os.getenv("CTP_PREMARKET_MINUTES", str(DEFAULT_MINUTES_BEFORE))))
+    except (TypeError, ValueError):
+        return DEFAULT_MINUTES_BEFORE
+
+
+def start_ctp_premarket_connect_worker(
+    *,
+    get_mode_fn: Callable[[], str],
+    interval: int = CHECK_INTERVAL_SEC,
+) -> None:
+    """在交易开始前若干分钟自动发起 CTP 连接。"""
+
+    def _loop() -> None:
+        time.sleep(10)
+        while True:
+            try:
+                if _premarket_enabled() and in_premarket_connect_window(
+                    minutes_before=_minutes_before_open(),
+                ):
+                    mode = get_mode_fn()
+                    st = ctp_status(mode)
+                    if not st.get("connected") and not st.get("connecting"):
+                        info = ctp_start_connect(mode, force=False)
+                        if info.get("started"):
+                            logger.info(
+                                "盘前自动连接 CTP [%s]（开盘前 %d 分钟）",
+                                mode,
+                                _minutes_before_open(),
+                            )
+            except Exception as exc:
+                logger.warning("CTP premarket connect worker: %s", exc)
+            time.sleep(max(30, interval))
+
+    threading.Thread(target=_loop, daemon=True, name="ctp-premarket-connect").start()