Doerklokker: nattestop 22-06, logbook debug, batteri-overvågning

- bagdoer + fordoer: bloker lyd/notifikation kl 22-06
- logbook.log for ALLE MQTT events (ogsaa wake-ups) til debugging
- Ny sensor: shelly_bagdoer_batteri + shelly_fordoer_batteri (MQTT)
- Ny automation: notifikation ved under 30% batteri

include/sensors/shelly_buttons.yaml

@@ -0,0 +1,14 @@
+# MQTT sensorer til Shelly Button 1 doerklokker
+- platform: mqtt
+  name: "Shelly bagdoer batteri"
+  state_topic: "shellies/shellybutton1-98CDAC1E5F42/sensor/battery"
+  unit_of_measurement: "%"
+  device_class: battery
+  value_template: "{{ value | int(0) }}"
+
+- platform: mqtt
+  name: "Shelly fordoer batteri"
+  state_topic: "shellies/shellybutton1-C45BBE6A5696/sensor/battery"
+  unit_of_measurement: "%"
+  device_class: battery
+  value_template: "{{ value | int(0) }}"