feat(sensor): add operating hours as core sensors (enabled by default)

Compressor, heat pump total, heating circuit, and hot water operating
hours are standard values every WP owner needs. Now enabled by default
instead of hidden in 1367 disabled entities.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 2 people

custom_components/luxtronik2_modbus_proxy/sensor.py

@@ -226,6 +226,52 @@ class LuxtronikSensorEntityDescription(SensorEntityDescription):
         lux_index=257,
         value_fn=_lux_calcs.calculations[257].from_heatpump,  # D-04, D-17
     ),
+    # Operating hours — enabled by default, every WP owner needs these.
+    # Luxtronik stores seconds; from_heatpump() converts to hours (float).
+    # Calculation index 56: Compressor 1 operating hours (ID_WEB_Zaehler_BetrZeitVD1)
+    LuxtronikSensorEntityDescription(
+        key="operating_hours_compressor",
+        name="Luxtronik Compressor Operating Hours",
+        icon="mdi:timer-cog",
+        native_unit_of_measurement="h",
+        state_class=SensorStateClass.TOTAL_INCREASING,
+        data_source="calculations",
+        lux_index=56,
+        value_fn=_lux_calcs.calculations[56].from_heatpump,
+    ),
+    # Calculation index 63: Total heat pump operating hours (ID_WEB_Zaehler_BetrZeitWP)
+    LuxtronikSensorEntityDescription(
+        key="operating_hours_heatpump",
+        name="Luxtronik Heat Pump Operating Hours",
+        icon="mdi:timer",
+        native_unit_of_measurement="h",
+        state_class=SensorStateClass.TOTAL_INCREASING,
+        data_source="calculations",
+        lux_index=63,
+        value_fn=_lux_calcs.calculations[63].from_heatpump,
+    ),
+    # Calculation index 64: Heating circuit operating hours (ID_WEB_Zaehler_BetrZeitHz)
+    LuxtronikSensorEntityDescription(
+        key="operating_hours_heating",
+        name="Luxtronik Heating Operating Hours",
+        icon="mdi:radiator",
+        native_unit_of_measurement="h",
+        state_class=SensorStateClass.TOTAL_INCREASING,
+        data_source="calculations",
+        lux_index=64,
+        value_fn=_lux_calcs.calculations[64].from_heatpump,
+    ),
+    # Calculation index 65: Hot water operating hours (ID_WEB_Zaehler_BetrZeitBW)
+    LuxtronikSensorEntityDescription(
+        key="operating_hours_hot_water",
+        name="Luxtronik Hot Water Operating Hours",
+        icon="mdi:water-boiler",
+        native_unit_of_measurement="h",
+        state_class=SensorStateClass.TOTAL_INCREASING,
+        data_source="calculations",
+        lux_index=65,
+        value_fn=_lux_calcs.calculations[65].from_heatpump,
+    ),
 )
 
 # ---------------------------------------------------------------------------
@@ -234,7 +280,7 @@ class LuxtronikSensorEntityDescription(SensorEntityDescription):
 # These 10 indices are already covered by CORE_SENSOR_DESCRIPTIONS above.
 # ---------------------------------------------------------------------------
 
-_CORE_CALC_INDICES: frozenset[int] = frozenset({10, 11, 15, 17, 19, 20, 39, 44, 80, 257})
+_CORE_CALC_INDICES: frozenset[int] = frozenset({10, 11, 15, 17, 19, 20, 39, 44, 56, 63, 64, 65, 80, 257})
 
 
 def _build_extra_calc_descriptions() -> tuple[LuxtronikSensorEntityDescription, ...]: