chore: Custom Roles to manage permissions [ UI ] (#9865)

In admin settings, this Pr will add the UI for managing custom roles (
ref: https://github.com/chatwoot/chatwoot/pull/9995 ). It also handles
the routing logic changes to accommodate fine-tuned permissions.

---------

Co-authored-by: Pranav <pranavrajs@gmail.com>
Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>
Co-authored-by: iamsivin <iamsivin@gmail.com>
Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

spec/enterprise/controllers/api/v1/profiles_controller_spec.rb

@@ -0,0 +1,28 @@
+require 'rails_helper'
+
+RSpec.describe 'Profile API', type: :request do
+  describe 'GET /api/v1/profile' do
+    let(:account) { create(:account) }
+    let!(:custom_role_account) { create(:account, name: 'Custom Role Account') }
+    let!(:custom_role) { create(:custom_role, name: 'Custom Role', account: custom_role_account) }
+    let!(:agent) { create(:user, account: account, custom_attributes: { test: 'test' }, role: :agent) }
+
+    before do
+      create(:account_user, account: custom_role_account, user: agent, custom_role: custom_role)
+    end
+
+    context 'when it is an authenticated user' do
+      it 'returns user custom role information' do
+        get '/api/v1/profile',
+            headers: agent.create_new_auth_token,
+            as: :json
+
+        parsed_response = response.parsed_body
+        # map accounts object and make sure custom role id and name are present
+        role_account = parsed_response['accounts'].find { |account| account['id'] == custom_role_account.id }
+        expect(role_account['custom_role']['id']).to eq(custom_role.id)
+        expect(role_account['custom_role']['name']).to eq(custom_role.name)
+      end
+    end
+  end
+end