Refactor brand service and related components

- Removed ListQuestionVersions method and associated types from BrandService and Queries.
- Updated PromptRuleGenerationService to change task naming and handling.
- Enhanced ScheduleTaskService to support filtering by created date range and keyword.
- Introduced InstantTaskService for managing instant tasks with appropriate filtering and response structures.
- Added InstantTaskHandler for handling API requests related to instant tasks.
- Created InstantTaskTab component for the admin web interface to display and manage instant tasks.
- Updated database migrations to rename source types for articles and generation tasks.
- Adjusted models and repository queries to reflect the removal of question version handling.

apps/admin-web/src/layouts/AppShell.vue

@@ -29,7 +29,13 @@ const quotaQuery = useQuery({
 });
 
 const userInitial = computed(() => authStore.user?.name?.slice(0, 1).toUpperCase() ?? "A");
-const selectedKey = computed(() => String(route.meta.navKey ?? route.path));
+const selectedKeys = computed(() => {
+  if (route.meta.navKey === null) {
+    return [];
+  }
+
+  return [String(route.meta.navKey ?? route.path)];
+});
 const pageTitle = computed(() => t(String(route.meta.titleKey ?? "route.workspace.title")));
 
 const localeOptions = computed(() => [
@@ -117,7 +123,7 @@ async function handleLogout(): Promise<void> {
       <a-menu
         mode="inline"
         theme="light"
-        :selected-keys="[selectedKey]"
+        :selected-keys="selectedKeys"
         class="admin-menu"
       >
         <template v-for="section in navSections" :key="section.key">