/**
 * `bober facts <add|list|show|invalidate>` — manage semantic bi-temporal facts.
 *
 * Subcommands:
 *   add         — Insert a new fact into the store.
 *   list        — Print active (non-invalidated) facts.
 *   show <id>   — Print one fact including provenance and temporal fields.
 *   invalidate  — Soft-delete a fact (sets t_invalidated; never removes the row).
 *
 * Error handling: CLI handlers MUST NOT throw. They set process.exitCode=1 and
 * return on all errors. Pattern mirrors src/cli/commands/memory.ts.
 */
import type { Command } from "commander";
export declare function registerFactsCommand(program: Command): void;
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