refactor OAuth test to streamline developer hub host configuration

Author: harshithad0703

test/sanity-check/api/oauth-test.js

@@ -24,18 +24,17 @@ const oauthClient = client.oauth({
 // Override developerHubBaseUrl for custom host
 if (process.env.HOST) {
   let developerHubHost = null
-  
+
   // For dev or stag environments (e.g., dev11-api.csnonprod.com -> dev-developerhub-api.csnonprod.com)
   if (process.env.HOST.startsWith('dev')) {
     developerHubHost = process.env.HOST.replace(/^dev\d*-api\./, 'dev-developerhub-api.')
   } else if (process.env.HOST.startsWith('stag')) {
     developerHubHost = process.env.HOST.replace(/^stag\d*-api\./, 'stag-developerhub-api.')
-  } 
-  // For standard Contentstack region hosts (e.g., au-api.contentstack.com -> au-developerhub-api.contentstack.com)
-  else if (process.env.HOST.includes('contentstack.com') || process.env.HOST.includes('contentstack.io')) {
+  } else if (process.env.HOST.includes('contentstack.com') || process.env.HOST.includes('contentstack.io')) {
+    // For standard Contentstack region hosts (e.g., au-api.contentstack.com -> au-developerhub-api.contentstack.com)
     developerHubHost = process.env.HOST.replace(/-api\./, '-developerhub-api.')
   }
-  
+
   if (developerHubHost) {
     oauthClient.axiosInstance.defaults.developerHubBaseUrl = `https://${developerHubHost}`
     oauthClient.developerHubBaseUrl = `https://${developerHubHost}`