feat: Add CSAT response APIs (#2503)

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

spec/controllers/api/v1/accounts/campaigns_controller_spec.rb

@@ -18,7 +18,9 @@ RSpec.describe 'Campaigns API', type: :request do
       let!(:campaign) { create(:campaign, account: account) }
 
       it 'returns unauthorized for agents' do
-        get "/api/v1/accounts/#{account.id}/campaigns"
+        get "/api/v1/accounts/#{account.id}/campaigns",
+            headers: agent.create_new_auth_token,
+            as: :json
 
         expect(response).to have_http_status(:unauthorized)
       end