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)/synergies/page.tsx

@@ -1,13 +1,23 @@
 "use client";
 
 import { useEffect, useState } from "react";
-import { Network, Plus } from "lucide-react";
 import { listSynergies, authorizeSynergy } from "@/lib/api-v2";
 import { PageContainer, Badge } from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
 import { toast } from "sonner";
 
+/** 协同机会项。 */
+interface Synergy {
+  id: string;
+  type: string;
+  title: string;
+  status: string;
+  authorized?: boolean;
+  description?: string;
+  match_reason?: string;
+}
+
 const SYNERGY_TYPE_LABELS: Record<string, string> = {
   customer: "客户协同",
   talent: "人才协同",
@@ -17,12 +27,12 @@ const SYNERGY_TYPE_LABELS: Record<string, string> = {
 };
 
 export default function SynergiesPage() {
-  const [items, setItems] = useState<Record<string, any>[]>([]);
+  const [items, setItems] = useState<Synergy[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
   const load = () => {
     listSynergies()
-      .then((resp) => setItems((resp.data as Record<string, any>[]) ?? []))
+      .then((resp) => setItems((resp.data as Synergy[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
   };
@@ -51,16 +61,16 @@ export default function SynergiesPage() {
             <div key={i} className="rounded-lg border border-gray-200 bg-white p-4">
               <div className="flex items-center justify-between">
                 <div className="flex items-center gap-2">
-                  <Badge color="blue">{SYNERGY_TYPE_LABELS[item.type as string] ?? item.type}</Badge>
-                  <h3 className="font-medium text-gray-900">{item.title as string}</h3>
+                  <Badge color="blue">{SYNERGY_TYPE_LABELS[item.type] ?? item.type}</Badge>
+                  <h3 className="font-medium text-gray-900">{item.title}</h3>
                 </div>
                 <div className="flex items-center gap-2">
                   <Badge color={item.status === "completed" ? "green" : item.status === "authorized" ? "blue" : "gray"}>
-                    {item.status as string}
+                    {item.status}
                   </Badge>
                   {item.authorized === false && (
                     <button
-                      onClick={() => handleAuthorize(item.id as string)}
+                      onClick={() => handleAuthorize(item.id)}
                       className="rounded-md bg-gray-900 px-2 py-1 text-xs text-white hover:bg-gray-700"
                     >
                       授权
@@ -68,8 +78,8 @@ export default function SynergiesPage() {
                   )}
                 </div>
               </div>
-              {item.description && <p className="mt-2 text-sm text-gray-600">{item.description as string}</p>}
-              {item.match_reason && <p className="mt-1 text-xs text-gray-400">匹配理由：{item.match_reason as string}</p>}
+              {item.description && <p className="mt-2 text-sm text-gray-600">{item.description}</p>}
+              {item.match_reason && <p className="mt-1 text-xs text-gray-400">匹配理由：{item.match_reason}</p>}
             </div>
           ))}
         </div>