feat: implement Tesla smart charging v3 for Zaptec

- Beregner manglende kWh baseret på SOC og charge limit
- Finder de billigste 15-min elspot-timer før deadline
- Starter/stopper opladning via switch.home_charging
- Tilføjer failsafe 1 time før deadline
- Håndterer connected_finished session reset automatisk
- Stopper opladning når charge limit er nået
- Fuld modulopdeling: input_datetime, templates, binary_sensors, automations

include/automations/tesla_smart_charging.yaml

@@ -0,0 +1,44 @@
+- alias: Tesla smart charging v3
+  mode: single
+
+  trigger:
+    - platform: time_pattern
+      minutes: "/5"
+
+  condition:
+    - condition: time
+      before: input_datetime.tesla_charge_deadline
+
+  action:
+    - choose:
+
+        - conditions:
+            - condition: state
+              entity_id: binary_sensor.tesla_charge_now
+              state: "on"
+
+          sequence:
+            # Reset hvis session står i connected_finished
+            - choose:
+                - conditions:
+                    - condition: template
+                      value_template: "{{ states('sensor.home_charger_mode') == 'connected_finished' }}"
+                  sequence:
+                    - service: switch.turn_off
+                      target:
+                        entity_id: switch.home_charging
+                    - delay: "00:00:05"
+
+            - service: switch.turn_on
+              target:
+                entity_id: switch.home_charging
+
+        - conditions:
+            - condition: state
+              entity_id: binary_sensor.tesla_charge_now
+              state: "off"
+
+          sequence:
+            - service: switch.turn_off
+              target:
+                entity_id: switch.home_charging

include/automations/tesla_stop_when_full.yaml

@@ -0,0 +1,12 @@
+- alias: Tesla stop when charged
+  trigger:
+    - platform: template
+      value_template: >
+        {{ states('sensor.snowywhite_battery')|float >=
+           states('number.snowywhite_charge_limit')|float }}
+
+  action:
+    - service: switch.turn_off
+      target:
+        entity_id: switch.home_charging
+