added ep700, replaced dummy device

custom_components/bluetti_bt/const.py

@@ -1,5 +1,7 @@
 """Constants for the Bluetti BT integration."""
 
+import re
+
 from bluetti_mqtt.mqtt_client import MqttFieldConfig, MqttFieldType
 
 DOMAIN = "bluetti_bt"
@@ -15,6 +17,8 @@ CONF_MAX_RETRIES = "max_retries"
 DATA_COORDINATOR = "coordinator"
 DATA_POLLING_RUNNING = "polling_running"
 
+DEVICE_NAME_RE = re.compile(r'^(AC200M|AC300|AC500|AC60|EP500P|EP500|EP600|EP700|EB3A)(\d+)$')
+
 CONTROL_FIELDS = [
     "ac_output_on",
     "dc_output_on",