Add ATM open-offset toggle default off.

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

backend/app/api/settings.py

@@ -31,6 +31,7 @@ KEYS = (
     "leverage",
     "min_option_hours",
     "min_option_leverage",
+    "atm_open_offset_enabled",
     "max_atm_open_offset",
     "close_bid_mark_max_pct",
     "perp_qty_eth",
@@ -50,6 +51,7 @@ class StrategySettingsBody(BaseModel):
     leverage: float | None = Field(default=None, ge=1, le=125)
     min_option_hours: float | None = Field(default=None, ge=1, le=720)
     min_option_leverage: float | None = Field(default=None, ge=1, le=10000)
+    atm_open_offset_enabled: bool | None = None
     max_atm_open_offset: float | None = Field(default=None, ge=0, le=100)
     close_bid_mark_max_pct: float | None = Field(default=None, ge=1, le=100)
     perp_qty_eth: float | None = Field(default=None, ge=0.01, le=100)
@@ -102,6 +104,12 @@ def _read_settings() -> dict:
             db.get_setting("min_option_leverage", str(s.min_option_leverage))
             or s.min_option_leverage
         ),
+        "atm_open_offset_enabled": _as_bool(
+            db.get_setting(
+                "atm_open_offset_enabled", str(s.atm_open_offset_enabled)
+            ),
+            s.atm_open_offset_enabled,
+        ),
         "max_atm_open_offset": float(
             db.get_setting("max_atm_open_offset", str(s.max_atm_open_offset))
             or s.max_atm_open_offset

backend/app/api/sim.py

@@ -52,7 +52,7 @@ async def sim_open_group(
     if pick is None:
         raise HTTPException(
             status_code=409,
-            detail="无合格期权：请检查剩余时长、ATM距现价(≤开仓偏差上限)与杠杆(现价/卖一)",
+            detail="无合格期权：请检查剩余时长、ATM开仓偏差(若已开启)与杠杆(现价/卖一)",
         )
 
     force = (body.force_option_side if body else None) or None