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)/innovation/page.tsx

@@ -1,15 +1,22 @@
 "use client";
 
 import { useState } from "react";
-import { Lightbulb, Sparkles } from "lucide-react";
+import {Sparkles } from "lucide-react";
 import { discoverInnovation } from "@/lib/api-v2";
 import { PageContainer, Card } from "@/components/shared/PageContainer";
 import { EmptyState } from "@/components/shared/EmptyState";
 import { toast } from "sonner";
 
+/** 创新机会项。 */
+interface InnovationResult {
+  title: string;
+  combined_capability: string;
+  market_analysis?: string;
+}
+
 export default function InnovationPage() {
   const [capabilities, setCapabilities] = useState("");
-  const [results, setResults] = useState<Record<string, any>[]>([]);
+  const [results, setResults] = useState<InnovationResult[]>([]);
   const [isLoading, setIsLoading] = useState(false);
 
   const handleDiscover = async () => {
@@ -20,7 +27,7 @@ export default function InnovationPage() {
     setIsLoading(true);
     try {
       const resp = await discoverInnovation(capabilities);
-      setResults((resp.data as Record<string, any>[]) ?? []);
+      setResults((resp.data as InnovationResult[]) ?? []);
     } catch {
       toast.error("分析失败");
     } finally {
@@ -51,9 +58,9 @@ export default function InnovationPage() {
         <div className="space-y-3">
           {results.map((item, i) => (
             <Card key={i}>
-              <h3 className="font-medium text-gray-900">{item.title as string}</h3>
-              <p className="mt-1 text-sm text-gray-600">{item.combined_capability as string}</p>
-              {item.market_analysis && <p className="mt-1 text-xs text-gray-400">{item.market_analysis as string}</p>}
+              <h3 className="font-medium text-gray-900">{item.title}</h3>
+              <p className="mt-1 text-sm text-gray-600">{item.combined_capability}</p>
+              {item.market_analysis && <p className="mt-1 text-xs text-gray-400">{item.market_analysis}</p>}
             </Card>
           ))}
         </div>