feat(): push notifications via firebase admin

src/template_project/application/common/notifications/service.py

@@ -0,0 +1,8 @@
+from abc import abstractmethod
+from typing import Protocol
+
+
+class NotificationService(Protocol):
+    @abstractmethod
+    async def send_notification(self, identifier: str, title: str, body: str) -> None:
+        raise NotImplementedError