Restructure omni services and add Chatwoot research snapshot

research/chatwoot/spec/enterprise/models/agent_capacity_policy_spec.rb

@@ -0,0 +1,29 @@
+require 'rails_helper'
+
+RSpec.describe AgentCapacityPolicy, type: :model do
+  let(:account) { create(:account) }
+
+  describe 'validations' do
+    it { is_expected.to validate_presence_of(:name) }
+    it { is_expected.to validate_length_of(:name).is_at_most(255) }
+  end
+
+  describe 'destruction' do
+    let(:policy) { create(:agent_capacity_policy, account: account) }
+    let(:user) { create(:user, account: account) }
+    let(:inbox) { create(:inbox, account: account) }
+
+    it 'destroys associated inbox capacity limits' do
+      create(:inbox_capacity_limit, agent_capacity_policy: policy, inbox: inbox)
+      expect { policy.destroy }.to change(InboxCapacityLimit, :count).by(-1)
+    end
+
+    it 'nullifies associated account users' do
+      account_user = user.account_users.first
+      account_user.update!(agent_capacity_policy: policy)
+
+      policy.destroy
+      expect(account_user.reload.agent_capacity_policy).to be_nil
+    end
+  end
+end