feat: add cluster detail

src/locales/en-US/clusters.ts

@@ -102,7 +102,7 @@ export default {
     '{count} new worker has been added to the cluster.',
   'clusters.addworker.message.success_multiple':
     '{count} new workers have been added to the cluster.',
-  'clusters.create.serverUrl': 'Server URL',
+  'clusters.create.serverUrl': 'GPUStack Server URL',
   'clusters.create.workerConfig': 'Worker Configuration',
   'clusters.addworker.containerName': 'Worker Container Name',
   'clusters.addworker.containerName.tips':
@@ -113,7 +113,7 @@ export default {
   'clusters.table.ip.internal': 'Internal',
   'clusters.table.ip.external': 'External',
   'clusters.form.serverUrl.tips':
-    'Specify the server URL accessible from your cloud provider.',
+    'Specify an externally accessible GPUStack service URL if the worker cannot access GPUStack directly.',
   'clusters.form.setDefault': 'Set as Default',
   'clusters.form.setDefault.tips': 'Default for deployment.',
   'clusters.addworker.noClusters': 'No available Docker clusters found',