feat: improve admin build (#14485)

#### PR Dependency Tree


* **PR #14485** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Chores**
  * Admin static assets now served under /admin for self-hosted installs
  * CLI is directly executable from the command line
  * Build tooling supports a configurable self-hosted public path
  * Updated admin package script for adding UI components
* Added a PostCSS dependency and plugin to the build toolchain for admin
builds

* **Style**
* Switched queue module to a local queuedash stylesheet, added queuedash
Tailwind layer, and scoped queuedash styles for the admin UI

* **Bug Fixes**
  * Improved error propagation in the Electron renderer
* Migration compatibility to repair a legacy checksum during native
storage upgrades

* **Tests**
  * Added tests covering the migration repair flow
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/admin/package.json

@@ -9,7 +9,7 @@
     "@affine/graphql": "workspace:*",
     "@affine/routes": "workspace:*",
     "@blocksuite/icons": "^2.2.17",
-    "@queuedash/ui": "^3.14.0",
+    "@queuedash/ui": "^3.16.0",
     "@radix-ui/react-accordion": "^1.2.2",
     "@radix-ui/react-alert-dialog": "^1.1.3",
     "@radix-ui/react-aspect-ratio": "^1.1.1",
@@ -74,7 +74,7 @@
   "scripts": {
     "build": "affine bundle",
     "dev": "affine bundle --dev",
-    "update-shadcn": "shadcn-ui add -p src/components/ui"
+    "update-shadcn": "yarn dlx shadcn@latest add -p src/components/ui"
   },
   "exports": {
     "./*": "./src/*.ts",