fix(产品): 防止空概览覆盖版本树

apps/web/lib/product-overview-persistence.ts

@@ -1,3 +1,35 @@
 export function shouldPersistRemoteOverview(overview: unknown): boolean {
-  return Array.isArray(overview) && overview.length > 0;
+  if (!Array.isArray(overview) || overview.length === 0) return false;
+  return overview.some(hasFrontendTreeSignal);
+}
+
+function hasFrontendTreeSignal(product: unknown): boolean {
+  if (!isRecord(product)) return false;
+  const projects = Array.isArray(product.projects) ? product.projects : [];
+  const versions = Array.isArray(product.versions) ? product.versions : [];
+  return projects.some(isFrontendProject) || versions.some(isFrontendVersion);
+}
+
+function isFrontendProject(project: unknown): boolean {
+  return (
+    isRecord(project) &&
+    typeof project.id === 'string' &&
+    project.id.startsWith('proj-') &&
+    typeof project.name === 'string'
+  );
+}
+
+function isFrontendVersion(version: unknown): boolean {
+  if (!isRecord(version) || typeof version.id !== 'string' || typeof version.name !== 'string') return false;
+  return (
+    version.id.startsWith('ver-') ||
+    typeof version.status === 'string' ||
+    typeof version.expectedReleaseDate === 'string' ||
+    Array.isArray(version.members) ||
+    typeof version.priority === 'string'
+  );
+}
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === 'object' && value !== null;
 }