Add super admin configuration and service

libs/common/src/config/index.ts

@@ -1,2 +1,3 @@
 import emailConfig from './email.config';
-export default [emailConfig];
+import superAdminConfig from './super.admin.config';
+export default [emailConfig, superAdminConfig];

libs/common/src/config/super.admin.config.ts

@@ -0,0 +1,9 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs(
+  'super-admin',
+  (): Record<string, any> => ({
+    SUPER_ADMIN_EMAIL: process.env.SUPER_ADMIN_EMAIL,
+    SUPER_ADMIN_PASSWORD: process.env.SUPER_ADMIN_PASSWORD,
+  }),
+);