Fix post-close auto sell: restore missing spot min-size helpers used by sim sell.

Sell was silently failing on ImportError; surface sell result in close alert notes.

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

lib/hedge_plan/hedge_plan_orders_lib.py

@@ -1681,18 +1681,36 @@ def execute_manual_close_plan(cfg: dict[str, Any], conn: Any, plan_id: int) -> d
             notes.append(f"永续已平 {symbol}")
             _release_db_write(conn)
 
-    # 3) 卖币回 USDT
-    sell_r: dict[str, Any] = {"ok": True, "skipped": True}
+    # 3) 卖币回 USDT(期权平仓后交易账户应有标的币)
+    sell_r: dict[str, Any] = {"ok": False, "msg": "未执行卖币"}
     try:
         _release_db_write(conn)
         sell_ex = cfg.get("exchange_options") or cfg.get("exchange")
-        if sell_ex is not None:
+        if callable(sell_ex):
+            sell_ex = sell_ex()
+        if sell_ex is None:
+            sell_r = {"ok": False, "msg": "无交易所实例,无法卖币"}
+        else:
             sell_r = spot_market_sell_coin_to_usdt(sell_ex, underlying=uly)
+            # 无可用币视为已无需卖(非失败),其它失败要暴露
+            if not sell_r.get("ok"):
+                msg_l = str(sell_r.get("msg") or "")
+                if "无可用" in msg_l or "可卖数量过小" in msg_l:
+                    sell_r = {**sell_r, "ok": True, "skipped": True, "soft": True}
     except Exception as e:
         sell_r = {"ok": False, "msg": str(e)}
     close_detail["sell_coin"] = sell_r
-    if sell_r.get("ok"):
-        notes.append("已卖币回 USDT" if not sell_r.get("skipped") else "卖币跳过")
+    if sell_r.get("ok") and not sell_r.get("skipped"):
+        notes.append(
+            "已卖币回 USDT"
+            + (
+                f" {sell_r.get('coin_sold')}→{sell_r.get('usdt_recovered')}U"
+                if sell_r.get("coin_sold") is not None
+                else ""
+            )
+        )
+    elif sell_r.get("skipped"):
+        notes.append("卖币跳过: " + str(sell_r.get("msg") or "无可用币"))
     else:
         notes.append("卖币失败: " + str(sell_r.get("msg") or ""))
 
@@ -1730,11 +1748,18 @@ def execute_manual_close_plan(cfg: dict[str, Any], conn: Any, plan_id: int) -> d
             notify_plan_end(cfg, conn, plan2)
         except Exception:
             pass
+    sell_ok = bool(sell_r.get("ok"))
+    msg = "已平仓并结束计划"
+    if sell_ok and not sell_r.get("skipped"):
+        msg = "已平仓并卖币回 USDT"
+    elif not sell_ok:
+        msg = "已平仓,但卖币失败: " + str(sell_r.get("msg") or "")
     return {
         "ok": True,
         "plan_id": int(plan_id),
-        "msg": "已平仓并结束计划",
+        "msg": msg,
         "notes": notes,
         "close": close_detail,
+        "sell_coin": sell_r,
         "realized_pnl_total": plan2.get("realized_pnl_total") if plan2 else total,
     }