/**
 * Notification Store
 *
 * Persists toast notifications to disk for history viewing.
 * Data stored in ~/.pluginator/notifications.json
 *
 * ## Design note: sync + swallow is intentional
 *
 * Unlike PluginManager / RegistryService / SourcesService (which use async+throw
 * convergence), NotificationStore deliberately uses sync I/O with swallowed errors:
 *
 * - It is accessed from React render paths (useNotifications, NotificationHistoryView)
 *   where async getters would cascade re-renders or require effect-based loading.
 * - Notifications are non-critical UI metadata. A corrupt or missing notifications.json
 *   must NOT crash the UI or block higher-priority operations.
 * - `writeFileAtomicSync` provides durable writes; transient failures are logged-as-debug
 *   and dropped because the next save will retry the full state.
 *
 * If you find yourself wanting async+throw semantics here, reconsider whether the call
 * site really needs them — the alternative is converging the entire UI render tree to
 * deferred loading, which is a much larger surface change.
 *
 * Tracked in the v2.11 service-lifecycle convergence audit; deliberately kept as-is.
 *
 * @since v2.9.1
 */
import type { NotificationFilter, NotificationRecord } from './notification-types.js';
export declare class NotificationStore {
    private records;
    private storePath;
    private loaded;
    constructor(storePath?: string);
    /** Load records from disk */
    load(): void;
    /** Add a notification to the store and persist */
    add(type: NotificationRecord['type'], message: string, source?: string): void;
    /** Get notifications, newest first, with optional filtering */
    getAll(filter?: NotificationFilter): NotificationRecord[];
    /** Remove notifications older than MAX_AGE_MS. Returns count removed. */
    prune(): number;
    /** Clear all notifications */
    clear(): void;
    /** Get total count */
    count(): number;
    private save;
}
export declare function getNotificationStore(): NotificationStore;
export declare function resetNotificationStore(): void;
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