/**
 * Rigorous FTS5 Query Sanitization
 *
 * Prevents FTS5 catastrophic backtracking (ReDoS) and application-level syntax crashes
 * by aggressively stripping FTS control syntax and forcing queries into safe,
 * implicit AND-token sequences.
 *
 * Threat Vectors Mitigated:
 * - Unbalanced quotes & parentheses causing SQLITE_ERROR syntax crashes
 * - Deeply nested or hallucinated \`NEAR/xxx\` proximity operators causing FTS planner ReDoS
 * - Column filters (\`col:val\`) leaking unintended field traversals
 * - Naked booleans (\`word AND OR NOT word\`) confusing the FTS AST parser
 */
export declare function sanitizeFtsQuery(query: string): string;
//# sourceMappingURL=fts-sanitizer.d.ts.map