feat: add GlobalConfigService to support env vars migration (#3288)

app/controllers/api/v1/accounts_controller.rb

@@ -55,7 +55,7 @@ class Api::V1::AccountsController < Api::BaseController
   end
 
   def check_signup_enabled
-    raise ActionController::RoutingError, 'Not Found' if ENV.fetch('ENABLE_ACCOUNT_SIGNUP', true) == 'false'
+    raise ActionController::RoutingError, 'Not Found' if GlobalConfig.get_value('ENABLE_ACCOUNT_SIGNUP') == 'false'
   end
 
   def pundit_user

app/controllers/dashboard_controller.rb

@@ -27,7 +27,8 @@ class DashboardController < ActionController::Base
       'ANALYTICS_TOKEN',
       'ANALYTICS_HOST'
     ).merge(
-      APP_VERSION: Chatwoot.config[:version]
+      APP_VERSION: Chatwoot.config[:version],
+      ENABLE_ACCOUNT_SIGNUP: GlobalConfigService.load('ENABLE_ACCOUNT_SIGNUP', 'false')
     )
   end