feat: IP-Adresse standardmaessig als Entitaet aktiv

Die IP ist der Wert, den man beim Suchen einer Lampe zuerst braucht - als
abgeschaltete Diagnose-Entitaet war sie genau dann nicht da.

tests/test_sensor.py

@@ -13,7 +13,7 @@ from pytest_homeassistant_custom_component.common import MockConfigEntry, async_
 
 from tests.helpers import entity_id_for
 
-DISABLED_KEYS = ("ip_address", "free_heap", "last_ota_error", "boot_time")
+DISABLED_KEYS = ("free_heap", "last_ota_error", "boot_time")
 
 
 async def _enable_all(
@@ -41,11 +41,12 @@ async def _poll(hass: HomeAssistant, freezer: FrozenDateTimeFactory, seconds: in
     await hass.async_block_till_done()
 
 
-async def test_signal_enabled_others_disabled_by_default(
+async def test_signal_and_ip_enabled_others_disabled_by_default(
     hass: HomeAssistant, init_integration
 ) -> None:
     registry = er.async_get(hass)
     assert hass.states.get(entity_id_for(hass, "sensor", "rssi")).state == "-61"
+    assert hass.states.get(entity_id_for(hass, "sensor", "ip_address")).state == "192.168.2.22"
     for key in DISABLED_KEYS:
         entry = registry.async_get(entity_id_for(hass, "sensor", key))
         assert entry.disabled_by is er.RegistryEntryDisabler.INTEGRATION, key