feat: add Role (owner|admin) to the user domain, persistence model and mapper

internal/infrastructure/useCases/AcceptInvite.go

@@ -54,6 +54,7 @@ func (a *AcceptInviteUseCase) AcceptInvite(command AcceptInviteCommand) (user.Us
 		Password:   hashedPassword,
 		Email:      pending.Email,
 		IsVerified: true,
+		Role:       user.RoleAdmin,
 	})
 	if errors.Is(err, invite.ErrInviteNotFound) {
 		return user.User{}, invite.ErrInviteInvalid