feat(10.1-02): run registered toolbar actions and scope plugin CSS per controller

- ListToolbar renders server-filtered actions after delete as outline buttons, busy during their POST
- ListView posts {} to toolbar/{action}, toasts, reloads the list and refetches the header partial
- Lists load controller assets too, so other controllers' stylesheet links are disabled on every open
- Vite dev server proxies {prefix}/assets to summer serve; dist rebuilt

admin/src/views/ListView.vue

@@ -7,6 +7,7 @@ import type { AdminRecord, ListMeta, ListQuery, ListSchema } from '../api/types'
 import { controllerIdFromParams, controllerPath } from '../app/controllerRoutes'
 import { message, t } from '../app/i18n'
 import { listQueryKey, parseListQuery, toListQuery, type RowId } from '../app/listQuery'
+import { loadControllerAssets } from '../app/pluginAssets'
 import { mapWinterUrl } from '../app/winterUrl'
 import DataTable from '../components/list/DataTable.vue'
 import FilterBar from '../components/list/FilterBar.vue'
@@ -70,7 +71,13 @@ const subtitle = computed(() => (meta.value ? message(messages.value?.recordCoun
 
 const buttons = computed(() => schema.value?.toolbarButtons ?? [])
 const headingButtons = computed(() => buttons.value.filter((button) => button === 'create'))
-const toolbarButtons = computed(() => buttons.value.filter((button) => button === 'delete'))
+// Delete and the registered actions the admin may run, in declared order
+// (D-12). An action missing from toolbarActions is not rendered at all.
+const toolbarActions = computed(() => schema.value?.toolbarActions ?? [])
+const toolbarButtons = computed(() =>
+  buttons.value.filter((button) => button === 'delete' || toolbarActions.value.some((action) => action.name === button)),
+)
+const busyAction = ref<string | null>(null)
 
 const perPageOptions = computed(() => {
   const options = schema.value?.perPageOptions ?? []
@@ -116,7 +123,10 @@ async function load(): Promise<void> {
   const result = await api.GET('/{vendor}/{plugin}/{controller}/schema/list', { params: { path } })
   schema.value = result.data?.data ?? null
   schemaFailed.value = !schema.value
-
+  if (schema.value) {
+    // Plugin files load in the background; the table never waits (D-14).
+    void loadControllerAssets(controllerId, schema.value.assets)
+  }
 }
 
 void load()
@@ -216,6 +226,33 @@ async function onDelete(): Promise<void> {
     deleting.value = false
   }
 }
+
+/** Runs a registered toolbar action (D-12): no confirmation, body {}. */
+async function onAction(name: string): Promise<void> {
+  if (busyAction.value !== null) {
+    return
+  }
+  busyAction.value = name
+  try {
+    const result = await api.POST('/{vendor}/{plugin}/{controller}/toolbar/{action}', {
+      params: { path: { ...path, action: name } },
+      body: {},
+    })
+    if (result.data) {
+      if (result.data.data.message) {
+        showToast(result.data.data.message)
+      }
+      await loadList()
+      partialReload.value += 1
+      return
+    }
+    showToast(result.error?.error.message || t('backend::lang.extension.action_failed'), 'danger')
+  } catch {
+    showToast(t('backend::lang.extension.action_failed'), 'danger')
+  } finally {
+    busyAction.value = null
+  }
+}
 </script>
 
 <template>
@@ -255,8 +292,11 @@ async function onDelete(): Promise<void> {
         :selected-count="selected.length"
         :selected-label="message(messages?.selected, selected.length)"
         :delete-label="message(messages?.deleteSelected, selected.length)"
+        :actions="toolbarActions"
+        :busy-action="busyAction"
         @update:search="onSearch"
         @delete="onDelete"
+        @action="onAction"
       />
       <FilterBar
         v-if="schema && schema.filters.length > 0"