Make options target close gate configurable via env.

Support premium multiplier (coin default 1.05) or net-PnL USDT threshold with index conversion.

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

lib/options/options_positions_lib.py

@@ -54,10 +54,15 @@ def attach_close_preview(
         max_levels=1,
     )
     premium_ccy = str(row.get("premium_ccy") or "USDC").strip().upper() or "USDC"
-    # 残档时不累计 2×门控;有效买一时刷新计时(仅自动平仓需要)
+    index_px = _safe_float(row.get("idx_px") or row.get("idxPx") or row.get("index_px"))
+    # 残档时不累计门控;有效买一时刷新计时(仅自动平仓需要)
     if preview.get("bid_invalid") or preview.get("auto_close_blocked"):
         gate = update_close_gate(
-            inst_id, recycle_usdc=None, premium_paid=paid, premium_ccy=premium_ccy
+            inst_id,
+            recycle_usdc=None,
+            premium_paid=paid,
+            premium_ccy=premium_ccy,
+            index_px=index_px,
         )
         preview["close_gate"] = gate
         preview["close_gate_blocked"] = True
@@ -70,6 +75,7 @@ def attach_close_preview(
             recycle_usdc=_safe_float(preview.get("total_received")),
             premium_paid=paid,
             premium_ccy=premium_ccy,
+            index_px=index_px,
         )
         passed = bool(gate.get("passed") or is_close_gate_passed(inst_id) or gate.get("ready"))
         preview["close_gate"] = gate