/** What a Todo-data migration refuses with, and the signal that picks which
 *  refusal it is. Kept apart from the migration itself because these are the two
 *  sentences an operator actually reads when the gateway will not start, and
 *  they have to stay recognizable — `shared/db.ts` matches one of them by value
 *  to tell "this database is not ours to migrate" from "this file is broken". */
export declare const UNSUPPORTED_PRERELEASE_TODO_DATA: string;
export declare const CORRUPT_SESSIONS_DATABASE: string;
/** SQLite surfaces file corruption via these substrings. */
export declare function isSqliteCorruption(message: string): boolean;
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