fix(dashboard): display company name instead of ID in health score overview

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

@@ -120,7 +120,7 @@ export default function InvestorDashboardPage() {
                 <div className="flex items-center gap-3">
                   <HealthScoreBadge score={Math.round(score.total_score)} />
                   <div>
-                    <p className="text-sm font-medium">企业 ID: {score.company_id.slice(0, 8)}...</p>
+                    <p className="text-sm font-medium">{score.company_name ?? `企业 ${score.company_id.slice(0, 8)}`}</p>
                     <p className="text-xs text-muted-foreground">
                       {new Date(score.calculated_at).toLocaleDateString("zh-CN")}
                     </p>

frontend/src/lib/dashboard.ts

@@ -6,6 +6,7 @@ import { apiFetch, type ApiResponse } from "./api";
 export interface HealthScore {
   id: string;
   company_id: string;
+  company_name: string | null;
   total_score: number;
   financial_score: number | null;
   operational_score: number | null;