import type Database from 'better-sqlite3';
import type { CheckResult, FixResult } from './types';
export declare class FixEngine {
    /**
     * Apply fixes for all fixable issues in the given check results.
     * All fixes run inside a single transaction (db.transaction).
     *
     * @param db - Database connection
     * @param results - Check results containing fixable issues
     * @param dryRun - If true, simulate fixes without writing
     * @returns FixResult with list of applied fixes
     */
    applyFixes(db: Database.Database, results: CheckResult[], dryRun: boolean): FixResult;
    /**
     * Simulate fixes without applying them.
     * Returns what would be done in a FixResult.
     */
    private simulateFixes;
    /**
     * Apply a single fix. Uses raw DML within the caller's transaction scope.
     */
    private applyFix;
}
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