type HookHandler = (...args: unknown[]) => Promise<void> | void;
/**
 * Simple typed event emitter for module lifecycle hooks.
 *
 * Events are namespaced by convention: "module.event"
 * (e.g., "contacts.beforeCreate", "bookings.afterConfirm")
 */
declare class HookSystem {
    private handlers;
    /** Register a handler for an event */
    on(event: string, handler: HookHandler): void;
    /** Remove a handler for an event */
    off(event: string, handler: HookHandler): void;
    /** Emit an event, calling all registered handlers sequentially */
    emit(event: string, ...args: unknown[]): Promise<void>;
}
export declare const hooks: HookSystem;
export {};
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