feat：移除了弹窗，服务器添加sls

apps/app-frontend/src/helpers/remote-announcements.ts

@@ -0,0 +1,66 @@
+export type RemoteAnnouncement = {
+	id: string
+	title: string
+	summary: string | null
+	content: string
+	type: 'modal' | 'notification'
+	priority: 'low' | 'normal' | 'high' | 'critical'
+	starts_at: string
+	ends_at: string | null
+	published_at: string
+	action_url: string | null
+	action_label: string | null
+}
+
+export function safeAnnouncementUrl(value: unknown): string | null {
+	if (typeof value !== 'string') return null
+	try {
+		const url = new URL(value)
+		return ['https:', 'http:'].includes(url.protocol) && !url.username && !url.password
+			? url.href
+			: null
+	} catch {
+		return null
+	}
+}
+
+export function parseAnnouncements(value: unknown): RemoteAnnouncement[] | null {
+	if (!Array.isArray(value) || value.length > 200) return null
+	const items: RemoteAnnouncement[] = []
+	const ids = new Set<string>()
+	for (const entry of value) {
+		if (!entry || typeof entry !== 'object') continue
+		const item = entry as Record<string, unknown>
+		if (
+			typeof item.id !== 'string' || item.id.length > 100 || ids.has(item.id) ||
+			typeof item.title !== 'string' || !item.title.trim() || item.title.length > 120 ||
+			typeof item.content !== 'string' || item.content.length > 20000 ||
+			(item.summary != null && (typeof item.summary !== 'string' || item.summary.length > 300)) ||
+			!['modal', 'notification'].includes(String(item.type)) ||
+			!['low', 'normal', 'high', 'critical'].includes(String(item.priority)) ||
+			typeof item.starts_at !== 'string' || !Number.isFinite(Date.parse(item.starts_at)) ||
+			typeof item.published_at !== 'string' || !Number.isFinite(Date.parse(item.published_at)) ||
+			(item.ends_at != null && (typeof item.ends_at !== 'string' || !Number.isFinite(Date.parse(item.ends_at)))) ||
+			(item.action_label != null && (typeof item.action_label !== 'string' || item.action_label.length > 80)) ||
+			(item.action_url != null && !safeAnnouncementUrl(item.action_url))
+		) continue
+		ids.add(item.id)
+		items.push({
+			...item,
+			summary: item.summary ?? null,
+			ends_at: item.ends_at ?? null,
+			action_label: item.action_label ?? null,
+			action_url: item.action_url ?? null,
+		} as RemoteAnnouncement)
+	}
+	const rank = { low: 0, normal: 1, high: 2, critical: 3 }
+	return items.sort((first, second) => rank[second.priority] - rank[first.priority] || Date.parse(second.published_at) - Date.parse(first.published_at))
+}
+
+export function isAnnouncementActive(item: RemoteAnnouncement, now = Date.now()) {
+	return Date.parse(item.starts_at) <= now && (!item.ends_at || Date.parse(item.ends_at) > now)
+}
+
+export function announcementKey(item: RemoteAnnouncement) {
+	return item.id + ':' + item.published_at
+}