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/app/(investor)/digital-twins/page.tsx

@@ -1,19 +1,30 @@
 "use client";
 
 import { useEffect, useState } from "react";
-import { Bot, Sparkles } from "lucide-react";
+import {Sparkles } from "lucide-react";
 import { listDigitalTwins, buildDigitalTwin, simulateTwin } from "@/lib/api-v2";
 import { PageContainer, Card, Badge } from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
 import { toast } from "sonner";
 
+/** 数字孪生模型项。 */
+interface DigitalTwinItem {
+  accuracy_score?: number;
+}
+
+/** 模拟结果。 */
+interface SimulationResult {
+  projected_outcome: string;
+  confidence?: number;
+}
+
 export default function DigitalTwinsPage() {
-  const [items, setItems] = useState<Record<string, any>[]>([]);
+  const [items, setItems] = useState<DigitalTwinItem[]>([]);
   const [isLoading, setIsLoading] = useState(true);
   const [companyData, setCompanyData] = useState("");
   const [scenario, setScenario] = useState("");
-  const [simResult, setSimResult] = useState<Record<string, any> | null>(null);
+  const [simResult, setSimResult] = useState<SimulationResult | null>(null);
 
   useEffect(() => {
     listDigitalTwins("")
@@ -29,8 +40,8 @@ export default function DigitalTwinsPage() {
     }
     try {
       const resp = await buildDigitalTwin(companyData);
-      toast.success("数字孪生模型已构建");
-      setItems([resp.data as Record<string, any>, ...items]);
+      toast.success("数字孿生模型已构建");
+      setItems([resp.data as DigitalTwinItem, ...items]);
     } catch {
       toast.error("构建失败");
     }
@@ -43,7 +54,7 @@ export default function DigitalTwinsPage() {
     }
     try {
       const resp = await simulateTwin({}, scenario);
-      setSimResult(resp.data as Record<string, any>);
+      setSimResult(resp.data as SimulationResult);
     } catch {
       toast.error("模拟失败");
     }
@@ -85,9 +96,9 @@ export default function DigitalTwinsPage() {
         </button>
         {simResult && (
           <div className="mt-3 text-sm text-gray-600">
-            <p>预测结果：{simResult.projected_outcome as string}</p>
+            <p>预测结果：{simResult.projected_outcome}</p>
             {simResult.confidence != null && (
-              <p className="mt-1">置信度：<Badge color="blue">{((simResult.confidence as number) * 100).toFixed(0)}%</Badge></p>
+              <p className="mt-1">置信度：<Badge color="blue">{(simResult.confidence * 100).toFixed(0)}%</Badge></p>
             )}
           </div>
         )}
@@ -104,8 +115,8 @@ export default function DigitalTwinsPage() {
               <div className="flex items-center justify-between">
                 <h3 className="font-medium text-gray-900">数字孪生模型</h3>
                 {item.accuracy_score != null && (
-                  <Badge color={(item.accuracy_score as number) > 0.7 ? "green" : "amber"}>
-                    精度 {((item.accuracy_score as number) * 100).toFixed(0)}%
+                  <Badge color={item.accuracy_score > 0.7 ? "green" : "amber"}>
+                    精度 {(item.accuracy_score * 100).toFixed(0)}%
                   </Badge>
                 )}
               </div>