Initial commit — EMHASS + Deye + NordPool setup

- EMHASS config for Deye SUN-12K + 32 kWh battery, NordPool LV
- Day-ahead optimization automation (14:30 daily) with real battery SOC init
- Forecast vs reality template sensors and dashboard card
- Migration log from Domoticz

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

dashboard_card.yaml

@@ -0,0 +1,87 @@
+# EMHASS Dashboard Card
+# Add this to your dashboard (Dashboard → Edit → Add Card → Manual)
+
+type: entities
+title: EMHASS Energy Status
+show_header_toggle: false
+entities:
+  # Current Status
+  - type: section
+    label: Current Status
+  - entity: sensor.current_hour_price
+    name: Current Price
+    icon: mdi:cash
+    secondary_info: "{{ state_attr('sensor.nordpool_kwh_lv_eur_3_10_021', 'low_price') }}"
+  - entity: sensor.battery_power_state
+    name: Battery State
+    icon: >
+      {% if is_state('sensor.battery_power_state', 'charging') %}mdi:battery-charging
+      {% elif is_state('sensor.battery_power_state', 'discharging') %}mdi:battery-minus
+      {% else %}mdi:battery{% endif %}
+  - entity: sensor.deye_inverter_mqtt_battery_soc
+    name: Battery SOC
+    icon: mdi:battery-{{ (states('sensor.deye_inverter_mqtt_battery_soc') | float(0) / 10) | round(0) | int }}0
+  - entity: sensor.deye_inverter_mqtt_battery_power
+    name: Battery Power
+    secondary_info: "Target: {{ states('sensor.soc_batt_forecast') }}%"
+
+  # Forecast Comparison
+  - type: section
+    label: Forecast vs Reality
+  - entity: sensor.battery_soc_forecast_error
+    name: SOC Forecast Error
+    icon: >
+      {% set err = states('sensor.battery_soc_forecast_error') | float(0) %}
+      {% if err | abs < 5 %}mdi:check-circle
+      {% elif err | abs < 10 %}mdi:alert-circle
+      {% else %}mdi:alert-octagon{% endif %}
+  - entity: sensor.soc_batt_forecast
+    name: Target SOC (Forecast)
+    icon: mdi:target
+
+  # Daily Totals
+  - type: section
+    label: Today
+  - entity: sensor.deye_inverter_mqtt_daily_production
+    name: PV Production
+    icon: mdi:solar-power
+  - entity: sensor.deye_inverter_mqtt_daily_energy_bought
+    name: Grid Import
+    icon: mdi:transmission-tower-import
+  - entity: sensor.deye_inverter_mqtt_daily_energy_sold
+    name: Grid Export
+    icon: mdi:transmission-tower-export
+  - entity: sensor.deye_inverter_mqtt_daily_battery_charge
+    name: Battery Charged
+    icon: mdi:battery-charging
+  - entity: sensor.deye_inverter_mqtt_daily_battery_discharge
+    name: Battery Discharged
+    icon: mdi:battery-minus
+  - entity: sensor.deye_inverter_mqtt_daily_load_consumption
+    name: Load Consumption
+    icon: mdi:home-lightning-bolt
+
+---
+# Alternative: Compact History Graph
+type: history-graph
+title: Battery SOC: Actual vs Forecast
+entities:
+  - entity: sensor.deye_inverter_mqtt_battery_soc
+    name: Actual
+    color: "#4CAF50"
+  - entity: sensor.soc_batt_forecast
+    name: Forecast
+    color: "#FF9800"
+hours_to_show: 48
+refresh_interval: 300
+
+---
+# Price Timeline Card
+type: entities
+title: Price Timeline
+entities:
+  - type: custom:timeline-card
+    entities:
+      - entity: sensor.nordpool_kwh_lv_eur_3_10_021
+        name: NordPool Price
+    title: Spot Price Timeline