feat(web): React-фронтенд вместо Flet + fix restore rmtree на bind-mount

web-react/: SPA Vite+React+TS, nginx раздаёт статику и проксирует /api на api:8000 по локалке. docker-compose: web(Flet)->web-react на :80. transfer_crud.backup_restore: чистим содержимое data/radar вместо rmtree точки монтирования (EBUSY).

web-react/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "copp-web-react",
+  "private": true,
+  "version": "1.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
+    "react-router-dom": "^6.26.2"
+  },
+  "devDependencies": {
+    "@types/react": "^18.3.5",
+    "@types/react-dom": "^18.3.0",
+    "@vitejs/plugin-react": "^4.3.1",
+    "typescript": "^5.5.4",
+    "vite": "^5.4.6"
+  }
+}