Initial CoinOX instance: coin-margined options + USDT hedge.

Forked from crypto_monitor OKX instance (copy-only). Keeps standalone options, perp-options and options-options hedge; drops standalone perp entrypoints; forces coin margin; adds sim wallets; default port 5010.

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

lib/sim/__init__.py

@@ -0,0 +1,11 @@
+"""本地模拟资金撮合(公开行情 + SQLite 钱包)."""
+
+from __future__ import annotations
+
+__all__ = ["install_sim_trading"]
+
+
+def install_sim_trading(*args, **kwargs):
+    from lib.sim.register import install_sim_trading as _install
+
+    return _install(*args, **kwargs)