fix: remote register validate

app/forms/register/remote_form.rb

@@ -0,0 +1,16 @@
+module Register
+  class RemoteForm < Register::BaseForm
+    # login 登陆方式，支持邮箱、登陆、手机号等
+    attr_accessor :username, :email, :password, :platform
+
+    validates :username, :email, :password, presence: true
+    validate :check!
+    
+    def check!
+      Rails.logger.info "Register::RemoteForm params: username: #{username}; email: #{email}; password: #{password}; platform: #{platform}"
+      check_login(username)
+      check_mail(email)
+      check_password(password)
+    end
+  end
+end