fix(scope): all pages react to company scope change via useScopeEffect

- Created useScopeEffect hook that auto-triggers reload on scope change
- Replaced useEffect([], []) with useScopeEffect in 20+ pages
- Risks/Reports/Dashboard also use useScopeEffect
- Removed redundant per-page useCompanyScope where only effect was needed

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import {Sparkles } from "lucide-react";
 import { listAARs, generateAAR } from "@/lib/api-v2";
 import { PageContainer, Card} from "@/components/shared/PageContainer";
@@ -22,12 +23,12 @@ export default function AARsPage() {
   const [originalPlan, setOriginalPlan] = useState("");
   const [actualResult, setActualResult] = useState("");
 
-  useEffect(() => {
+  useScopeEffect(() => {
     listAARs()
       .then((resp) => setItems((resp.data as AARItem[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   const handleGenerate = async () => {
     if (!triggerEvent.trim()) {

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { listAgentExecutions, reviewAgentExecution } from "@/lib/api-v2";
 import { PageContainer, Badge} from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
@@ -28,7 +29,7 @@ export default function AgentsPage() {
       .finally(() => setIsLoading(false));
   };
 
-  useEffect(() => { load(); }, []);
+  useScopeEffect(() => { load(); });
 
   const handleReview = async (id: string, status: string) => {
     try {

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import {Plus } from "lucide-react";
 import { listAgreements } from "@/lib/api-v2";
 import { PageContainer, Badge, TableEmpty } from "@/components/shared/PageContainer";
@@ -19,12 +20,12 @@ export default function AgreementsPage() {
   const [items, setItems] = useState<Agreement[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     listAgreements()
       .then((resp) => setItems((resp.data as Agreement[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   return (
     <PageContainer

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import {Plus } from "lucide-react";
 import { listInterventions } from "@/lib/api-v2";
 import { PageContainer, Badge, Card } from "@/components/shared/PageContainer";
@@ -19,12 +20,12 @@ export default function AlphaPage() {
   const [items, setItems] = useState<Intervention[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     listInterventions()
       .then((resp) => setItems((resp.data as Intervention[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   return (
     <PageContainer

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { listBoardMeetings } from "@/lib/api-v2";
 import { PageContainer, Badge} from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
@@ -18,12 +19,12 @@ export default function BoardPage() {
   const [items, setItems] = useState<BoardMeeting[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     listBoardMeetings()
       .then((resp) => setItems((resp.data as BoardMeeting[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   return (
     <PageContainer title="董事会管理" description="AI 会前材料摘要 → 决议追踪 → 提问清单生成">

frontend/src/app/(investor)/customer-growth/page.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { apiFetch } from "@/lib/api";
 import { PlanCard } from "@/components/customer/PlanCard";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
@@ -34,10 +35,10 @@ export default function CustomerGrowthPage() {
     }
   }
 
-  useEffect(() => {
+  useScopeEffect(() => {
     // eslint-disable-next-line react-hooks/set-state-in-effect
     loadPlans();
-  }, []);
+  });
 
   async function handleGenerate() {
     if (!companyContext.trim()) return;

frontend/src/app/(investor)/customer-success/page.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { apiFetch } from "@/lib/api";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
@@ -50,10 +51,10 @@ export default function CustomerSuccessPage() {
     }
   }
 
-  useEffect(() => {
+  useScopeEffect(() => {
     // eslint-disable-next-line react-hooks/set-state-in-effect
     loadChurnRisks();
-  }, []);
+  });
 
   async function handleQBR() {
     if (!qbrData.trim()) return;

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

@@ -1,10 +1,10 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
 import { Building2, Heart, AlertTriangle, FileText, TrendingUp, TrendingDown, Minus } from "lucide-react";
 import Link from "next/link";
 import { getDashboardSummary, type DashboardSummary } from "@/lib/dashboard";
-import { useCompanyScope } from "@/lib/company-scope";
+import { useCompanyScope, useScopeEffect } from "@/lib/company-scope";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
 import { HealthScoreBadge } from "@/components/shared/HealthScoreBadge";
@@ -18,7 +18,7 @@ export default function InvestorDashboardPage() {
   const [summary, setSummary] = useState<DashboardSummary | null>(null);
   const [isLoading, setIsLoading] = useState(true);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     async function load() {
       try {
         const resp = await getDashboardSummary();
@@ -30,7 +30,7 @@ export default function InvestorDashboardPage() {
       }
     }
     load();
-  }, []);
+  });
 
   if (isLoading) {
     return (

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

@@ -1,7 +1,8 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
 import { listMajorEvents, listInquiries } from "@/lib/api-v2";
+import { useScopeEffect } from "@/lib/company-scope";
 import { PageContainer, Badge } from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
@@ -26,7 +27,7 @@ export default function EventsPage() {
   const [isLoading, setIsLoading] = useState(true);
   const [tab, setTab] = useState<"events" | "inquiries">("events");
 
-  useEffect(() => {
+  useScopeEffect(() => {
     Promise.all([listMajorEvents(), listInquiries()])
       .then(([e, i]) => {
         setEvents((e.data as MajorEvent[]) ?? []);
@@ -37,7 +38,7 @@ export default function EventsPage() {
         setInquiries([]);
       })
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   return (
     <PageContainer title="重大事项 & 追问清单" description="AI 从月报/弱信号中自动识别重大事项 + 生成追问清单">

frontend/src/app/(investor)/exit-signals/page.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import {Sparkles } from "lucide-react";
 import { listExitPredictions, predictExit } from "@/lib/api-v2";
 import { PageContainer, Badge, Card } from "@/components/shared/PageContainer";
@@ -22,12 +23,12 @@ export default function ExitSignalsPage() {
   const [companyData, setCompanyData] = useState("");
   const [predicting, setPredicting] = useState(false);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     listExitPredictions()
       .then((resp) => setItems((resp.data as ExitPrediction[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   const handlePredict = async () => {
     if (!companyData.trim()) {

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { apiFetch } from "@/lib/api";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
@@ -41,10 +42,10 @@ export default function NudgesPage() {
     }
   }
 
-  useEffect(() => {
+  useScopeEffect(() => {
     // eslint-disable-next-line react-hooks/set-state-in-effect
     loadNudges();
-  }, []);
+  });
 
   async function handleSelect() {
     if (!context.trim()) return;

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import {Plus } from "lucide-react";
 import { listOKRs } from "@/lib/api-v2";
 import { PageContainer, Badge, Card } from "@/components/shared/PageContainer";
@@ -27,12 +28,12 @@ export default function OKRsPage() {
   const [items, setItems] = useState<OKRItem[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     listOKRs()
       .then((resp) => setItems((resp.data as OKRItem[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   return (
     <PageContainer

frontend/src/app/(investor)/peer-circles/page.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { apiFetch } from "@/lib/api";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
@@ -49,10 +50,10 @@ export default function PeerCirclesPage() {
     }
   }
 
-  useEffect(() => {
+  useScopeEffect(() => {
     // eslint-disable-next-line react-hooks/set-state-in-effect
     loadCircles();
-  }, []);
+  });
 
   async function handleMatch() {
     if (!foundersContext.trim()) return;

frontend/src/app/(investor)/pre-mortems/page.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import {Sparkles } from "lucide-react";
 import { listPreMortems, runPreMortem, listRedTeams, runRedTeam } from "@/lib/api-v2";
 import { PageContainer, Card, Badge } from "@/components/shared/PageContainer";
@@ -33,7 +34,7 @@ export default function PreMortemsPage() {
   const [input, setInput] = useState("");
   const [perspective, setPerspective] = useState("competitor");
 
-  useEffect(() => {
+  useScopeEffect(() => {
     Promise.all([listPreMortems(), listRedTeams()])
       .then(([pm, rt]) => {
         setPreMortems((pm.data as PreMortemItem[]) ?? []);
@@ -44,7 +45,7 @@ export default function PreMortemsPage() {
         setRedTeams([]);
       })
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   const handleRun = async () => {
     if (!input.trim()) {

frontend/src/app/(investor)/product-diagnostics/page.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { apiFetch } from "@/lib/api";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
@@ -46,10 +47,10 @@ export default function ProductDiagnosticsPage() {
     }
   }
 
-  useEffect(() => {
+  useScopeEffect(() => {
     // eslint-disable-next-line react-hooks/set-state-in-effect
     loadDiagnostics();
-  }, []);
+  });
 
   async function handleDiagnose() {
     if (!productInfo.trim()) return;

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

@@ -1,8 +1,9 @@
 "use client";
 
-import { useEffect, useState, useCallback } from "react";
+import { useState, useCallback } from "react";
 import {Plus, Trash2, Send } from "lucide-react";
 import { listReports, submitReport, deleteReport, STATUS_LABELS, STATUS_COLORS, type MonthlyReport } from "@/lib/reports";
+import { useScopeEffect } from "@/lib/company-scope";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
 
@@ -31,7 +32,7 @@ export default function ReportsPage() {
     }
   }, [page]);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     // eslint-disable-next-line react-hooks/set-state-in-effect
     loadReports();
   }, [loadReports]);

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

@@ -1,6 +1,6 @@
 "use client";
 
-import { useEffect, useState, useCallback } from "react";
+import { useState, useCallback } from "react";
 import { Filter } from "lucide-react";
 import { toast } from "sonner";
 import {
@@ -10,6 +10,7 @@ import {
   RISK_STATUS_LABELS,
   type RiskEvent,
 } from "@/lib/risks";
+import { useScopeEffect } from "@/lib/company-scope";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
 import { EmptyState } from "@/components/shared/EmptyState";
 import { RiskCard } from "@/components/risk/RiskCard";
@@ -44,7 +45,7 @@ export default function RisksPage() {
     }
   }, [page, statusFilter]);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     // eslint-disable-next-line react-hooks/set-state-in-effect
     loadRisks();
   }, [loadRisks]);

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { listDecisionSentinels } from "@/lib/api-v2";
 import { PageContainer, Badge} from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
@@ -18,12 +19,12 @@ export default function SentinelsPage() {
   const [items, setItems] = useState<DecisionSentinel[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     listDecisionSentinels()
       .then((resp) => setItems((resp.data as DecisionSentinel[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   return (
     <PageContainer title="决策前哨" description="AI 识别关键决策岔路口 → 场景分析 → 提前预警">

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { listSynergies, authorizeSynergy } from "@/lib/api-v2";
 import { PageContainer, Badge } from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
@@ -37,7 +38,7 @@ export default function SynergiesPage() {
       .finally(() => setIsLoading(false));
   };
 
-  useEffect(() => { load(); }, []);
+  useScopeEffect(() => { load(); });
 
   const handleAuthorize = async (id: string) => {
     try {

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { listTalents } from "@/lib/api-v2";
 import { PageContainer, Badge } from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
@@ -20,12 +21,12 @@ export default function TalentsPage() {
   const [items, setItems] = useState<Talent[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     listTalents()
       .then((resp) => setItems((resp.data as Talent[]) ?? []))
       .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">

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

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import {Plus } from "lucide-react";
 import { listTasks, updateTask } from "@/lib/api-v2";
 import { PageContainer, Badge } from "@/components/shared/PageContainer";
@@ -42,7 +43,7 @@ export default function TasksPage() {
       .finally(() => setIsLoading(false));
   };
 
-  useEffect(() => { load(); }, []);
+  useScopeEffect(() => { load(); });
 
   const handleStatusChange = async (id: string, status: string) => {
     try {

frontend/src/app/(investor)/weak-signals/page.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useEffect, useState } from "react";
+import { useState } from "react";
+import { useScopeEffect } from "@/lib/company-scope";
 import { listWeakSignals } from "@/lib/api-v2";
 import { PageContainer, Badge} from "@/components/shared/PageContainer";
 import { LoadingSpinner } from "@/components/shared/LoadingSpinner";
@@ -26,12 +27,12 @@ export default function WeakSignalsPage() {
   const [items, setItems] = useState<WeakSignal[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
-  useEffect(() => {
+  useScopeEffect(() => {
     listWeakSignals()
       .then((resp) => setItems((resp.data as WeakSignal[]) ?? []))
       .catch(() => setItems([]))
       .finally(() => setIsLoading(false));
-  }, []);
+  });
 
   return (
     <PageContainer title="弱信号监控" description="技术/情绪/组织/市场四类弱信号采集与关联分析">

frontend/src/lib/company-scope.tsx

@@ -51,7 +51,7 @@ export function CompanyScopeProvider({ children }: { children: ReactNode }) {
     }
   }, []);
 
-  // 持久化选择
+  // 持久化选择 + 派发事件通知各页面重新加载
   function setCompanyId(id: string | null) {
     setCompanyIdState(id);
     if (id) {
@@ -59,6 +59,8 @@ export function CompanyScopeProvider({ children }: { children: ReactNode }) {
     } else {
       localStorage.setItem("company_scope_id", "all");
     }
+    // 派发全局事件，让监听了 useScopeEffect 的页面重新加载数据
+    window.dispatchEvent(new CustomEvent("company-scope-change", { detail: { companyId: id } }));
   }
 
   const companyName = companyId
@@ -86,3 +88,22 @@ export function useCompanyScope() {
   }
   return ctx;
 }
+
+/**
+ * 监听企业视角变化，自动触发回调重新加载数据。
+ *
+ * 各页面在 useEffect 中调用此 hook，当全局企业选择变化时，
+ * 会自动触发回调重新加载（apiFetch 会自动注入新的 company_id）。
+ *
+ * @param callback 数据加载回调
+ * @param deps 额外依赖（如分页、筛选状态）
+ */
+export function useScopeEffect(callback: () => void, deps: unknown[] = []) {
+  const { companyId } = useCompanyScope();
+
+  useEffect(() => {
+    callback();
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [companyId, ...deps]);
+}
+