Bootstrap code cleanup.

passkey/db/__init__.py

@@ -231,6 +231,15 @@ class DatabaseInterface(ABC):
     ) -> None:
         """Create a new user and their first credential in a transaction."""
 
+    # Bootstrap helpers
+    @abstractmethod
+    async def has_any_users(self) -> bool:
+        """Check if any users exist in the system."""
+
+    @abstractmethod
+    async def find_users_by_role(self, role: str) -> list[User]:
+        """Find all users with a specific role."""
+
 
 __all__ = [
     "User",