feat: add is_admin to User, count_users, ProviderConfigRepository trait, admin migration

k-tv-backend/domain/src/services/user.rs

@@ -31,7 +31,10 @@ impl UserService {
         }
 
         let email = Email::try_from(email)?;
-        let user = User::new(subject, email);
+        let mut user = User::new(subject, email);
+        if self.user_repository.count_users().await? == 0 {
+            user.is_admin = true;
+        }
         self.user_repository.save(&user).await?;
         Ok(user)
     }
@@ -53,7 +56,10 @@ impl UserService {
         password_hash: &str,
     ) -> DomainResult<User> {
         let email = Email::try_from(email)?;
-        let user = User::new_local(email, password_hash);
+        let mut user = User::new_local(email, password_hash);
+        if self.user_repository.count_users().await? == 0 {
+            user.is_admin = true;
+        }
         self.user_repository.save(&user).await?;
         Ok(user)
     }