对齐币本位期权：现货缓冲开仓、页头 ETH/BTC 余额与默认 coin 模式。

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

lib/options/options_positions_lib.py

@@ -51,9 +51,12 @@ def attach_close_preview(
         intrinsic_px=intrinsic,
         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)
     if preview.get("bid_invalid") or preview.get("auto_close_blocked"):
-        gate = update_close_gate(inst_id, recycle_usdc=None, premium_paid=paid)
+        gate = update_close_gate(
+            inst_id, recycle_usdc=None, premium_paid=paid, premium_ccy=premium_ccy
+        )
         preview["close_gate"] = gate
         preview["close_gate_blocked"] = True
         preview["close_gate_msg"] = preview.get("bid_invalid_reason") or gate.get("msg")
@@ -64,6 +67,7 @@ def attach_close_preview(
             inst_id,
             recycle_usdc=_safe_float(preview.get("total_received")),
             premium_paid=paid,
+            premium_ccy=premium_ccy,
         )
         passed = bool(gate.get("passed") or is_close_gate_passed(inst_id) or gate.get("ready"))
         preview["close_gate"] = gate