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/common/static/options_panel.js

@@ -832,7 +832,7 @@
     const gate = preview.close_gate || {};
     // 2× 只是目标平仓门控,本身不会自动平;手动买一平不拦截
     if (preview.close_gate_blocked || (gate.ready === false && !gate.passed)) {
-      return "目标门控: " + (preview.close_gate_msg || gate.msg || "可回收需≥2×权利金并持续2分钟");
+      return "目标门控: " + (preview.close_gate_msg || gate.msg || "目标平仓门控未过");
     }
     return "";
   }

lib/common/static/options_position_cards.js

@@ -118,7 +118,7 @@
     }
     const gate = preview.close_gate || {};
     if (preview.close_gate_blocked || (gate.ready === false && !gate.passed)) {
-      return "目标门控: " + (preview.close_gate_msg || gate.msg || "可回收需≥2×权利金并持续2分钟");
+      return "目标门控: " + (preview.close_gate_msg || gate.msg || "目标平仓门控未过");
     }
     return "";
   }