export interface StoredCredentials {
    token: string;
    email: string;
    plan: 'free' | 'pro' | 'business';
    platformUrl: string;
    expiresAt: number;
    userId?: string;
}
export declare function loadCredentials(): StoredCredentials | null;
export declare function saveCredentials(creds: StoredCredentials): void;
export declare function clearCredentials(): void;
export declare function isTokenExpired(creds: StoredCredentials): boolean;
export declare function getPlatformUrl(): string;
export declare function isLoggedIn(): boolean;
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