feat(kafka): support Kafka MQ admin client

apps/desktop/src/stores/connectionStore.ts

@@ -1589,18 +1589,36 @@ export const useConnectionStore = defineStore("connection", () => {
       await ensureConnected(connectionId);
       if (useCachedChildren(node, options)) return;
 
-      const tenants = await withMetadataLoadTimeout(connectionId, api.mqListTenants(connectionId), "message queue tenants");
-      const tenantNames = sortSidebarNames(tenants.map((tenant) => tenant.name).filter((name) => !!name.trim()));
-      setChildren(
-        node,
-        tenantNames.map((tenant) => ({
-          id: schemaCacheKey(connectionId, "mq-tenant", tenant),
-          label: tenant,
-          type: "mq-tenant" as const,
-          connectionId,
-          mqTenant: tenant,
-        })),
-      );
+      const config = getConfig(connectionId);
+      const isKafka = config?.driver_profile === "kafka";
+
+      if (isKafka) {
+        // Kafka has no tenant/namespace concept. Create a synthetic child
+        // that opens the MQ admin console directly when clicked.
+        setChildren(node, [
+          {
+            id: schemaCacheKey(connectionId, "mq-tenant", "_kafka"),
+            label: "Topics",
+            type: "mq-tenant" as const,
+            connectionId,
+            mqTenant: "_kafka",
+            mqInitialTab: "topics",
+          },
+        ]);
+      } else {
+        const tenants = await withMetadataLoadTimeout(connectionId, api.mqListTenants(connectionId), "message queue tenants");
+        const tenantNames = sortSidebarNames(tenants.map((tenant) => tenant.name).filter((name) => !!name.trim()));
+        setChildren(
+          node,
+          tenantNames.map((tenant) => ({
+            id: schemaCacheKey(connectionId, "mq-tenant", tenant),
+            label: tenant,
+            type: "mq-tenant" as const,
+            connectionId,
+            mqTenant: tenant,
+          })),
+        );
+      }
       node.isExpanded = true;
     } catch (e) {
       recordMetadataLoadError(connectionId, e);

apps/desktop/src/stores/queryStore.ts

@@ -684,10 +684,11 @@ export const useQueryStore = defineStore("query", () => {
     return id;
   }
 
-  function openMqAdmin(connectionId: string, target?: { tenant?: string }) {
+  function openMqAdmin(connectionId: string, target?: { tenant?: string; initialTab?: QueryTab["mqInitialTab"] }) {
     const existing = tabs.value.find((tab) => tab.mode === "mq" && tab.connectionId === connectionId);
     if (existing) {
       if (target?.tenant) existing.mqTenant = target.tenant;
+      if (target?.initialTab) existing.mqInitialTab = target.initialTab;
       activeTabId.value = existing.id;
       return existing.id;
     }
@@ -705,6 +706,7 @@ export const useQueryStore = defineStore("query", () => {
       isExplaining: false,
       mode: "mq",
       mqTenant: target?.tenant,
+      mqInitialTab: target?.initialTab,
     };
     tabs.value.push(tab);
     activeTabId.value = id;
@@ -910,6 +912,7 @@ export const useQueryStore = defineStore("query", () => {
       explainExecutionId: undefined,
       mode: original.mode,
       mqTenant: original.mqTenant,
+      mqInitialTab: original.mqInitialTab,
       nacosNamespace: original.nacosNamespace,
       nacosNamespaceName: original.nacosNamespaceName,
       structureTableName: original.structureTableName,