Include LIVE close-fee estimate in target PnL; rest after manual and emergency close.

Align docs so LIVE exit matches SIM fee buffer; manual full close now enters rest_seconds like auto/emergency.

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

backend/app/api/sim.py

@@ -133,9 +133,14 @@ async def sim_close_group(_user: Annotated[str, Depends(require_user)]) -> dict:
             status_code=403,
             detail="未开启「显示手动开仓」；请在策略设置中开启后再用",
         )
+    from ..strategy import get_engine
+
     r = get_executor().close_group(reason="manual")
     if not r.ok and not r.liquidity_wait:
         raise HTTPException(status_code=400, detail=r.detail)
+    if r.ok:
+        # 与自动/紧急全平一致：成功全平后进入组间休息
+        get_engine().enter_rest_after_close()
     return {
         "ok": r.ok,
         "liquidity_wait": r.liquidity_wait,