Enhance affinity group selection validation for admin users

Author: Damans227

ui/src/views/compute/CreateKubernetesCluster.vue

@@ -921,12 +921,18 @@ export default {
         }
         if (this.isAdminOrDomainAdmin()) {
           const selectedGroupIds = [...this.controlAffinityGroups, ...this.workerAffinityGroups, ...this.etcdAffinityGroups]
-          if (selectedGroupIds.length > 0) {
-            const group = this.affinityGroups.find(affinityGroup => affinityGroup.id === selectedGroupIds[0])
-            if (group) {
-              params.domainid = group.domainid
-              params.account = group.account
+          const selectedGroups = selectedGroupIds.map(id => this.affinityGroups.find(affinityGroup => affinityGroup.id === id)).filter(Boolean)
+          if (selectedGroups.length > 0) {
+            const hasMixedAccounts = selectedGroups.some(ag => ag.account !== selectedGroups[0].account)
+            if (hasMixedAccounts) {
+              this.$notification.error({
+                message: this.$t('message.error.affinity.groups.different.accounts')
+              })
+              this.loading = false
+              return
             }
+            params.domainid = selectedGroups[0].domainid
+            params.account = selectedGroups[0].account
           }
         }
         if (values.hypervisor !== null) {