feat(frontend): M9 模态 UI（mode 系统+共享 store+WS 客户端 + chat(思维链/工具回显/情绪徽标)/code/Agent 监控/后台思考页 + Miuix 设计 token + PWA）；tsc+vite build 通过

frontend/web/package.json

@@ -0,0 +1,27 @@
+{
+  "name": "cyrene-web",
+  "private": true,
+  "version": "0.2.0",
+  "type": "module",
+  "description": "Cyrene v2 user frontend (M9 modal UI) — Miuix design language",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc --noEmit && vite build",
+    "preview": "vite preview",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "zustand": "^5.0.2"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4.0.6",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "@vitejs/plugin-react": "^4.3.4",
+    "tailwindcss": "^4.0.6",
+    "typescript": "^5.7.2",
+    "vite": "^6.0.0"
+  }
+}