test(frontend): UIUX E2E 测试 — 新增路由导航/创始人端/Admin端/工作台/移动端适配

新增 6 个 E2E 测试文件，覆盖 2-task-uiux.md 全部 50 项任务：
- uiux-navigation.spec.ts: 8 tests (today/compare/threads/workspace/ooda/ai-plus/profiles)
- sidebar-navigation.spec.ts: 6 tests (投资人 Sidebar 6 业务域)
- founder-uiux.spec.ts: 7 tests (创始人端 6 域导航)
- admin-uiux.spec.ts: 3 tests (Admin 6 管理域 + 商业秘密保护)
- workbench-uiux.spec.ts: 5 tests (Highlights/WorkMode/Tab/InsightRail)
- mobile-uiux.spec.ts: 5 tests (移动端抽屉导航 + 创始人底部导航)

同时修复全部 no-explicit-any 警告，替换为 TypeScript 接口定义。

测试结果: 41 E2E passed, 405 backend passed

frontend/src/components/shared/InsightRail.tsx

@@ -68,7 +68,7 @@ export function InsightRail({ defaultAgent = "risk" }: InsightRailProps) {
     return (
       <aside
         className="sticky top-0 hidden h-screen w-10 shrink-0 items-center justify-center border-l bg-white md:flex"
-        aria-expanded={false}
+
       >
         <button
           type="button"
@@ -87,7 +87,7 @@ export function InsightRail({ defaultAgent = "risk" }: InsightRailProps) {
   return (
     <aside
       className="sticky top-0 hidden h-screen w-80 shrink-0 flex-col border-l bg-white md:flex"
-      aria-expanded={true}
+
     >
       {/* 顶部：折叠按钮 + 当前上下文 */}
       <div className="flex items-center justify-between border-b px-3 py-2">