Initialize CMS application scaffold

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

ui/app/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "cms-ui",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "react": "^19.1.1",
+    "react-dom": "^19.1.1",
+    "react-router-dom": "^7.9.1"
+  },
+  "devDependencies": {
+    "@types/react": "^19.1.13",
+    "@types/react-dom": "^19.1.9",
+    "@vitejs/plugin-react": "^5.0.4",
+    "typescript": "^5.9.2",
+    "vite": "^7.1.7"
+  }
+}