feat: add presence validation for account name (#117)

app/models/account.rb

@@ -48,6 +48,7 @@ class Account < ApplicationRecord
     check_for_column: false
   }.freeze
 
+  validates :name, presence: true
   validates :domain, length: { maximum: 100 }
   validates_with JsonSchemaValidator,
                  schema: SETTINGS_PARAMS_SCHEMA,

spec/models/account_spec.rb

@@ -22,6 +22,12 @@ RSpec.describe Account do
   describe 'length validations' do
     let(:account) { create(:account) }
 
+    it 'validates name presence' do
+      account.name = ''
+      account.valid?
+      expect(account.errors[:name]).to include("can't be blank")
+    end
+
     it 'validates name length' do
       account.name = 'a' * 256
       account.valid?