Fix admin login and add subscription popup settings

frontend/src/lib/api/client.ts

@@ -230,6 +230,10 @@ export interface ApiSiteSettings {
   }> | null;
   ai_enabled: boolean;
   paragraph_comments_enabled: boolean;
+  subscription_popup_enabled: boolean;
+  subscription_popup_title: string | null;
+  subscription_popup_description: string | null;
+  subscription_popup_delay_seconds: number | null;
   seo_default_og_image: string | null;
   seo_default_twitter_handle: string | null;
 }
@@ -398,6 +402,12 @@ export const DEFAULT_SITE_SETTINGS: SiteSettings = {
   comments: {
     paragraphsEnabled: true,
   },
+  subscriptions: {
+    popupEnabled: true,
+    popupTitle: '订阅更新',
+    popupDescription: '有新文章或汇总简报时，通过邮件第一时间收到提醒。需要先确认邮箱，可随时退订。',
+    popupDelaySeconds: 18,
+  },
   seo: {
     defaultOgImage: undefined,
     defaultTwitterHandle: undefined,
@@ -523,6 +533,18 @@ const normalizeSiteSettings = (settings: ApiSiteSettings): SiteSettings => ({
   comments: {
     paragraphsEnabled: settings.paragraph_comments_enabled ?? true,
   },
+  subscriptions: {
+    popupEnabled:
+      settings.subscription_popup_enabled ?? DEFAULT_SITE_SETTINGS.subscriptions.popupEnabled,
+    popupTitle:
+      settings.subscription_popup_title || DEFAULT_SITE_SETTINGS.subscriptions.popupTitle,
+    popupDescription:
+      settings.subscription_popup_description ||
+      DEFAULT_SITE_SETTINGS.subscriptions.popupDescription,
+    popupDelaySeconds:
+      settings.subscription_popup_delay_seconds ??
+      DEFAULT_SITE_SETTINGS.subscriptions.popupDelaySeconds,
+  },
   seo: {
     defaultOgImage: settings.seo_default_og_image ?? undefined,
     defaultTwitterHandle: settings.seo_default_twitter_handle ?? undefined,