/**
 * PZG Pro License Validation
 *
 * Simple offline-capable license validation with local caching
 * Only checks license when Pro features are actually used
 */
type PlanSlug = 'starter' | 'professional' | 'business' | 'enterprise';
/**
 * Whether to skip licence enforcement for local Pro development.
 *
 * Requires BOTH an explicit opt-in and a submodule checkout. `NODE_ENV` is
 * deliberately not consulted: `NODE_ENV=development` is set by countless dev
 * setups and must never be enough to unlock paid features.
 */
export declare function isProDevBypassEnabled(): boolean;
export declare function describePlan(plan: PlanSlug): string;
export interface LicenseInfo {
    key: string;
    plan: PlanSlug;
    validUntil: string;
    maxSeats: number;
    cached: boolean;
    status?: 'active' | 'suspended' | 'expired';
    valid_until?: Date;
    customerId?: string;
}
/**
 * Main license validation function
 * Returns license info if valid, null if invalid, throws if required but missing
 */
export declare function validateLicense(required?: boolean): Promise<LicenseInfo | null>;
/**
 * Check if a specific plan feature is available
 */
export declare function hasFeature(license: LicenseInfo | null, feature: string): boolean;
/**
 * Require a specific feature, throw if not available
 */
export declare function requireFeature(feature: string, context?: {
    userId?: string;
    sessionId?: string;
}): Promise<LicenseInfo>;
/**
 * Get license status for CLI commands
 */
export type LicenseFailureReason = 'missing_key' | 'invalid_key' | 'expired' | 'code_tampering_detected' | 'validation_failed';
export declare function getLicenseStatus(): Promise<{
    valid: boolean;
    plan?: PlanSlug;
    cached?: boolean;
    /** Why validation failed, so callers can print the remedy that actually applies. */
    reason?: LicenseFailureReason;
    /** Underlying error message, safe to show the user. */
    detail?: string;
}>;
export {};