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/src/pages/Me.tsx

@@ -0,0 +1,36 @@
+/** 移动端"我"聚合页:头像占位+入口列表 */
+import { NavLink } from 'react-router-dom'
+import { User, History, BookOpen, Settings as SettingsIcon, ChevronRight } from 'lucide-react'
+import { getName } from '@/lib/auth'
+
+export function Me() {
+  const name = getName()
+  const items = [
+    { path: '/profile', label: '我的画像', icon: User },
+    { path: '/history', label: '对话历史', icon: History },
+    { path: '/knowledge', label: '知识库', icon: BookOpen },
+    { path: '/settings', label: '设置', icon: SettingsIcon },
+  ]
+  return (
+    <div className="space-y-4">
+      <div className="flex items-center gap-3 rounded-xl border border-border bg-card p-4">
+        <div className="flex h-12 w-12 items-center justify-center rounded-full bg-primary/10 text-primary font-bold">
+          {name?.[0] || '老'}
+        </div>
+        <div>
+          <div className="font-semibold text-foreground">{name || '老板'}</div>
+          <div className="text-sm text-muted-foreground">中小企业老板</div>
+        </div>
+      </div>
+      <div className="rounded-xl border border-border bg-card divide-y divide-border">
+        {items.map((item) => (
+          <NavLink key={item.path} to={item.path} className="flex items-center gap-3 p-4 hover:bg-muted transition-colors">
+            <item.icon className="h-5 w-5 text-muted-foreground" />
+            <span className="flex-1 text-sm text-foreground">{item.label}</span>
+            <ChevronRight className="h-4 w-4 text-muted-foreground" />
+          </NavLink>
+        ))}
+      </div>
+    </div>
+  )
+}