docs(uiux): UIUX 设计方案大改 + 5 份作业指导书对齐 + 开发任务文档

- UIUX 文档：填充 19 个缺口（多主体画像/健康度/AI+看板/增长域/洞察域/创始人端/OODA/助推/商密）
- UIUX 文档：插入 6 个新章节（十四~十九），旧章节重编号为二十~三十一，更新目录和交叉引用
- 作业指导书 x5：导航改为 6 域分组，新增 Context Bar/工作模式/Insight Rail/决策线程/多工作区等 UI 概念
- 新建 docs/2-task-uiux.md：50 个代码落地开发任务，按 P0-P6 分优先级 + 8 Sprint 规划
- 后端/前端：大量新增模型、路由、组件（来自之前 Phase 开发）

frontend/src/app/(investor)/talents/page.tsx

@@ -0,0 +1,57 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import { Users } from "lucide-react";
+import { listTalents } from "@/lib/api-v2";
+import { PageContainer, Badge } from "@/components/shared/PageContainer";
+import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
+import { EmptyState } from "@/components/shared/EmptyState";
+
+export default function TalentsPage() {
+  const [items, setItems] = useState<Record<string, any>[]>([]);
+  const [isLoading, setIsLoading] = useState(true);
+
+  useEffect(() => {
+    listTalents()
+      .then((resp) => setItems((resp.data as Record<string, any>[]) ?? []))
+      .catch(() => setItems([]))
+      .finally(() => setIsLoading(false));
+  }, []);
+
+  return (
+    <PageContainer title="人才引力场" description="人才流动预测 + 主动推荐 + 9-Box 矩阵">
+      {isLoading ? (
+        <LoadingSpinner />
+      ) : items.length === 0 ? (
+        <EmptyState description="暂无人才数据" />
+      ) : (
+        <div className="overflow-x-auto rounded-lg border border-gray-200">
+          <table className="min-w-full divide-y divide-gray-200 text-sm">
+            <thead className="bg-gray-50">
+              <tr>
+                <th className="px-4 py-2 text-left font-medium text-gray-500">姓名</th>
+                <th className="px-4 py-2 text-left font-medium text-gray-500">当前职位</th>
+                <th className="px-4 py-2 text-left font-medium text-gray-500">绩效</th>
+                <th className="px-4 py-2 text-left font-medium text-gray-500">潜力</th>
+                <th className="px-4 py-2 text-left font-medium text-gray-500">9-Box</th>
+                <th className="px-4 py-2 text-left font-medium text-gray-500">状态</th>
+              </tr>
+            </thead>
+            <tbody className="divide-y divide-gray-100 bg-white">
+              {items.map((item, i) => (
+                <tr key={i}>
+                  <td className="px-4 py-2 text-gray-900">{item.name as string}</td>
+                  <td className="px-4 py-2 text-gray-600">{item.current_role as string}</td>
+                  <td className="px-4 py-2 text-gray-600">{item.performance_rating as string ?? "-"}</td>
+                  <td className="px-4 py-2 text-gray-600">{item.potential_rating as string ?? "-"}</td>
+                  <td className="px-4 py-2"><Badge color="blue">{item.nine_box as string ?? "-"}</Badge></td>
+                  <td className="px-4 py-2"><Badge color={item.status === "active" ? "green" : "gray"}>{item.status as string}</Badge></td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      )}
+    </PageContainer>
+  );
+}