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)/financial/page.tsx

@@ -1,27 +1,36 @@
 "use client";
 
 import { useEffect, useState } from "react";
-import { Receipt } from "lucide-react";
-import { listFinancialData, validateFinancial } from "@/lib/api-v2";
-import { PageContainer, Card, Badge, TableEmpty } from "@/components/shared/PageContainer";
+import { listFinancialData} from "@/lib/api-v2";
+import { PageContainer,Badge, TableEmpty } from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
 
+/** 财务数据项。 */
+interface FinancialData {
+  period_year: number;
+  period_month: number;
+  statement_type: string;
+  credibility_score: number;
+  source: string;
+}
+
 /**
  * 投资人端 — 财务数据校验页面。
  */
 export default function FinancialPage() {
-  const [items, setItems] = useState<Record<string, any>[]>([]);
+  const [items, setItems] = useState<FinancialData[]>([]);
   const [isLoading, setIsLoading] = useState(true);
   const [companyId, setCompanyId] = useState("");
 
   useEffect(() => {
     if (!companyId) {
+      // eslint-disable-next-line react-hooks/set-state-in-effect
       setIsLoading(false);
       return;
     }
     listFinancialData(companyId)
-      .then((resp) => setItems((resp.data as Record<string, any>[]) ?? []))
+      .then((resp) => setItems((resp.data as FinancialData[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
   }, [companyId]);
@@ -62,16 +71,16 @@ export default function FinancialPage() {
                     <td className="px-4 py-2 text-gray-900">
                       {item.period_year}-{String(item.period_month).padStart(2, "0")}
                     </td>
-                    <td className="px-4 py-2 text-gray-600">{item.statement_type as string}</td>
+                    <td className="px-4 py-2 text-gray-600">{item.statement_type}</td>
                     <td className="px-4 py-2">
                       <Badge color={
-                        (item.credibility_score as number) >= 80 ? "green" :
-                        (item.credibility_score as number) >= 50 ? "amber" : "red"
+                        item.credibility_score >= 80 ? "green" :
+                        item.credibility_score >= 50 ? "amber" : "red"
                       }>
-                        {item.credibility_score as number}
+                        {item.credibility_score}
                       </Badge>
                     </td>
-                    <td className="px-4 py-2 text-gray-500">{item.source as string}</td>
+                    <td className="px-4 py-2 text-gray-500">{item.source}</td>
                   </tr>
                 ))
               )}