feat(docs-dev): remove deprecated docs-dev application files and configurations

apps/docs-dev/package.json

@@ -1,29 +0,0 @@
-{
-  "name": "docs-dev",
-  "private": true,
-  "version": "0.0.0",
-  "type": "module",
-  "scripts": {
-    "dev": "vite --clearScreen false",
-    "build": "tsc && vite build",
-    "preview": "vite preview",
-    "lint": "eslint \"src/**/*.ts\""
-  },
-  "dependencies": {
-    "@repo/ui": "workspace:*",
-    "@tailwindcss/vite": "^4.1.18",
-    "react": "^19.2.3",
-    "react-dom": "^19.2.3",
-    "tailwindcss": "^4.1.18"
-  },
-  "devDependencies": {
-    "@repo/eslint-config": "workspace:*",
-    "@repo/typescript-config": "workspace:*",
-    "@types/react": "^19.2.7",
-    "@types/react-dom": "^19.2.3",
-    "@vitejs/plugin-react": "^5.1.2",
-    "eslint": "^8.57.1",
-    "typescript": "5.5.4",
-    "vite": "^5.1.4"
-  }
-}