feat: Direktvermarktung mit Batterie-Netzeinspeisung

Fügt einen Direktvermarktungs-Modus (feedintariff.direct_marketing_enabled)
hinzu, der den Börsenpreis als Einspeisevergütung nutzt und aktive
Batterie-Entladung ins Netz (battery_grid_export_allowed) sowie
DC-Charge-Bypass optimiert.

- FeedInTariffEnergyCharts-Provider (Börsen-Einspeisetarif inkl. Prognose)
- Inverter: DC/AC-Wirkungsgrade und Batterie-Grid-Export in process_energy
- Genetik: Export-/DC-Charge-Zustände, Restwert-Bewertung des Akkus
- Solution-Result: neues Feld Feed_in_tariff (verwendeter Tarif je Stunde)
- Tests für neue Provider, Solution und Simulation

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/test_geneticsolution.py

@@ -0,0 +1,56 @@
+# ruff: noqa: S101
+
+import numpy as np
+
+from akkudoktoreos.devices.devicesabc import BatteryOperationMode
+from akkudoktoreos.optimization.genetic.genetic import GeneticOptimization
+from akkudoktoreos.optimization.genetic.geneticsolution import GeneticSolution
+
+
+def test_battery_discharge_allowed_remains_local_load_mode(config_eos):
+    config_eos.merge_settings_from_dict(
+        {"feedintariff": {"direct_marketing_enabled": True}}
+    )
+    solution = GeneticSolution.model_construct()
+
+    operation_mode, operation_mode_factor = solution._battery_operation_from_solution(
+        ac_charge=0.0,
+        dc_charge=0.0,
+        discharge_allowed=True,
+    )
+
+    assert operation_mode == BatteryOperationMode.PEAK_SHAVING
+    assert operation_mode_factor == 1.0
+
+
+def test_battery_grid_export_signal_maps_to_grid_support_export(config_eos):
+    config_eos.merge_settings_from_dict(
+        {"feedintariff": {"direct_marketing_enabled": True}}
+    )
+    solution = GeneticSolution.model_construct()
+
+    operation_mode, operation_mode_factor = solution._battery_operation_from_solution(
+        ac_charge=0.0,
+        dc_charge=0.0,
+        discharge_allowed=False,
+        battery_grid_export_allowed=True,
+    )
+
+    assert operation_mode == BatteryOperationMode.GRID_SUPPORT_EXPORT
+    assert operation_mode_factor == 1.0
+
+
+def test_decode_charge_discharge_has_separate_battery_grid_export_state():
+    optimization = GeneticOptimization()
+    optimization.bat_possible_charge_values = [1.0]
+    optimization.optimize_dc_charge = True
+    optimization.optimize_battery_grid_export = True
+
+    ac_charge, dc_charge, discharge, battery_grid_export = (
+        optimization.decode_charge_discharge(np.array([5]))
+    )
+
+    assert ac_charge.tolist() == [0.0]
+    assert dc_charge.tolist() == [0]
+    assert discharge.tolist() == [0]
+    assert battery_grid_export.tolist() == [1]