Branch 4: BA81 GEN cutoff audit + exekuce při sell<0

backend/tests/test_planning_dispatch_milp.py

@@ -2208,6 +2208,10 @@ class NegativeSellPvChargeTests(unittest.TestCase):
         for r in results:
             self.assertGreaterEqual(r.battery_setpoint_w, 0, "neg sell má nabíjet")
             self.assertGreaterEqual(r.grid_setpoint_w, 0, "neg sell bez exportu do sítě")
+            self.assertTrue(
+                r.deye_gen_cutoff_enabled,
+                "neg sell bez exportu → GEN cut-off ON (exekuce reg 178)",
+            )
 
     def test_ba81_fixed_purchase_nt_vt_buy_spread_neg_sell_no_export(self) -> None:
         """BA81: NT/VT buy v horizontu (rozptyl >0,25) — záporný sell stále bez exportu."""