fix: 交易安全审计修复 — 补偿平仓、中控同步、滚仓/趋势防护

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

lib/trade/compensating_close_lib.py

@@ -0,0 +1,16 @@
+"""开仓后挂 TP/SL 失败时的补偿平仓（避免裸仓）。"""
+from __future__ import annotations
+
+from typing import Callable
+
+
+def log_compensating_close_error(prefix: str, exc: BaseException) -> None:
+    print(f"[{prefix}] {exc}", flush=True)
+
+
+def run_compensating_close(close_fn: Callable[[], None], *, log_prefix: str = "compensating_close") -> None:
+    """执行补偿平仓；二次失败只打日志，不掩盖原始异常。"""
+    try:
+        close_fn()
+    except Exception as e:
+        log_compensating_close_error(log_prefix, e)