refactor(desktop): narrow home health board to expired/revoked accounts

Home 看板只保留已过期或已停用的账号，问题计数改用阻塞态 authState；新增 formatVerifiedAtLabel，统一校验通过时间的展示粒度。

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/desktop-client/src/renderer/lib/formatters.ts

@@ -41,6 +41,21 @@ export function formatDateTime(value: number | null): string {
   }).format(value);
 }
 
+export function formatVerifiedAtLabel(value: number | null): string {
+  if (!value) {
+    return "尚未完成校验";
+  }
+
+  const deltaMs = Math.abs(Date.now() - value);
+  if (deltaMs < 60_000) {
+    return "刚刚校验通过";
+  }
+  if (deltaMs < 60 * 60_000) {
+    return `${Math.max(1, Math.round(deltaMs / 60_000))} 分钟前校验通过`;
+  }
+  return `${formatDateTime(value)} 校验通过`;
+}
+
 export function titleCaseToken(value: string): string {
   return value
     .split(/[_-]/g)