feat(ui): Add UI library (#900)

* feat: scaffold UI library

* Update packages/ui/src/components/theme-provider.tsx

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* add lock file

* lint/formatting fixes

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

packages/ui/components.json

@@ -0,0 +1,22 @@
+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "new-york",
+  "rsc": false,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "src/base.css",
+    "baseColor": "slate",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "iconLibrary": "lucide",
+  "aliases": {
+    "components": "@/components",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib",
+    "hooks": "@/hooks"
+  },
+  "registries": {}
+}