模拟盘对齐币本位：钱包支持 ETH/BTC，现货桥与期权权利金走本地撮合。

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

lib/sim/db_lib.py

@@ -14,6 +14,19 @@ def _env_float(key: str, default: float) -> float:
         return float(default)
 
 
+def _ensure_sim_wallet_coin_columns(conn: sqlite3.Connection) -> None:
+    """旧库补齐币本位 ETH/BTC 列."""
+    cols = {
+        str(r[1])
+        for r in conn.execute("PRAGMA table_info(sim_wallets)").fetchall()
+    }
+    for col in ("funding_eth", "trading_eth", "funding_btc", "trading_btc"):
+        if col not in cols:
+            conn.execute(
+                f"ALTER TABLE sim_wallets ADD COLUMN {col} REAL NOT NULL DEFAULT 0"
+            )
+
+
 def init_sim_tables(conn: sqlite3.Connection) -> None:
     conn.execute(
         """
@@ -23,10 +36,15 @@ def init_sim_tables(conn: sqlite3.Connection) -> None:
             trading_usdt REAL NOT NULL DEFAULT 0,
             funding_usdc REAL NOT NULL DEFAULT 0,
             trading_usdc REAL NOT NULL DEFAULT 0,
+            funding_eth REAL NOT NULL DEFAULT 0,
+            trading_eth REAL NOT NULL DEFAULT 0,
+            funding_btc REAL NOT NULL DEFAULT 0,
+            trading_btc REAL NOT NULL DEFAULT 0,
             updated_at TEXT
         )
         """
     )
+    _ensure_sim_wallet_coin_columns(conn)
     conn.execute(
         """
         CREATE TABLE IF NOT EXISTS sim_perp_positions (