Bootstrap Python rewrite skeleton

app/integrations/homeassistant.py

@@ -0,0 +1,12 @@
+from dataclasses import dataclass
+
+from app.config import Settings
+
+
+@dataclass(slots=True)
+class HomeAssistantClient:
+    settings: Settings
+
+    def is_configured(self) -> bool:
+        return bool(self.settings.home_assistant_base_url and self.settings.home_assistant_auth_token)
+