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/app/pluginAssets.ts

@@ -102,8 +102,8 @@ export async function loadControllerAssets(
   controllerId: string,
   assets: ControllerAssets | null | undefined,
 ): Promise<string[]> {
-  activateStyles(controllerId)
   loadStyles(controllerId, assets?.styles ?? [])
+  activateStyles(controllerId)
   const urls = assets?.scripts ?? []
   const results = await Promise.allSettled(urls.map((url) => loadScript(url)))
   return urls.filter((_, index) => results[index]?.status === 'rejected')