feat: BossAi v2.0 UI/UX 重构 + 看板断点续接 + 多轮上下文

- 新增 web2/ 前端:任务卡看板、风险雷达、决策日志、我的团队、快捷指令
- ChatPanel 增强:风险卡置顶、案卡接入、起诉状向导、语音输入
- 事项看板:点击查看详情弹窗、断点续接(恢复历史对话+matterId)
- 保密模式恢复:密码验证后重建内存 session,保留多轮上下文
- 多轮对话:ask/ask-stream/ask-analyze 注入 session 历史,AI 有上下文
- 追问优化:紧扣用户问题,不再偏离主题(社保问社保,工伤问工伤)
- 对话区可滚动,输入区固定可见
- 状态机放宽:允许从任意非终态转到 pending_expert
- session 存活检查端点,后端重启后自动重建 session
- DB migration:风险推送表、案卡表

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

web2/package.json

@@ -0,0 +1,49 @@
+{
+  "name": "bossai-web2",
+  "private": true,
+  "version": "2.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview",
+    "typecheck": "tsc -b --noEmit",
+    "lint": "eslint src --ext .ts,.tsx"
+  },
+  "dependencies": {
+    "@radix-ui/react-dialog": "1.1.4",
+    "@radix-ui/react-label": "2.1.1",
+    "@radix-ui/react-scroll-area": "1.2.2",
+    "@radix-ui/react-select": "2.1.4",
+    "@radix-ui/react-separator": "1.1.1",
+    "@radix-ui/react-slot": "1.1.1",
+    "@radix-ui/react-switch": "1.1.2",
+    "@radix-ui/react-tabs": "1.1.2",
+    "class-variance-authority": "0.7.1",
+    "clsx": "2.1.1",
+    "highlight.js": "^11.12.0",
+    "lucide-react": "0.469.0",
+    "react": "18.3.1",
+    "react-dom": "18.3.1",
+    "react-markdown": "^9.1.0",
+    "react-router-dom": "6.28.1",
+    "recharts": "2.15.0",
+    "rehype-highlight": "^7.0.2",
+    "remark-gfm": "^4.0.1",
+    "sonner": "1.7.1",
+    "tailwind-merge": "2.6.0",
+    "tailwindcss-animate": "1.0.7"
+  },
+  "devDependencies": {
+    "@tailwindcss/typography": "^0.5.20",
+    "@types/node": "22.10.5",
+    "@types/react": "18.3.18",
+    "@types/react-dom": "18.3.5",
+    "@vitejs/plugin-react": "4.3.4",
+    "autoprefixer": "10.4.20",
+    "postcss": "8.4.49",
+    "tailwindcss": "3.4.17",
+    "typescript": "5.7.2",
+    "vite": "5.4.11"
+  }
+}