公告增加每次显示模式

src/lib/config.ts

@@ -265,6 +265,10 @@ async function getInitConfig(
       Announcement:
         process.env.ANNOUNCEMENT ||
         '本网站仅提供影视信息搜索服务，所有内容均来自第三方网站。本站不存储任何视频资源，不对任何内容的准确性、合法性、完整性负责。',
+      AnnouncementDisplayMode:
+        process.env.ANNOUNCEMENT_DISPLAY_MODE === 'every'
+          ? 'every'
+          : 'once',
       SearchDownstreamMaxPage:
         Number(process.env.NEXT_PUBLIC_SEARCH_MAX_PAGE) || 5,
       SiteInterfaceCacheTime: cfgFile.cache_time || 7200,
@@ -555,6 +559,11 @@ export function configSelfCheck(adminConfig: AdminConfig): AdminConfig {
   if (adminConfig.SiteConfig.EnableComments === undefined) {
     adminConfig.SiteConfig.EnableComments = false;
   }
+  // 确保公告显示模式存在
+  if (adminConfig.SiteConfig.AnnouncementDisplayMode === undefined) {
+    adminConfig.SiteConfig.AnnouncementDisplayMode =
+      process.env.ANNOUNCEMENT_DISPLAY_MODE === 'every' ? 'every' : 'once';
+  }
   if (adminConfig.SiteConfig.EnableRegistration === undefined) {
     adminConfig.SiteConfig.EnableRegistration = false;
   }