Function executeReadonlySql

packages/core/src/query/message-queries.ts:354–366

(
  db: DatabaseAdapter,
  sql: string,
  maxRows: number = 1000
)

 * 执行只读 SQL 查询（SQL Lab）— 保留向后兼容签名
 */
export function executeReadonlySql(
  db: DatabaseAdapter,
  sql: string,
  maxRows: number = 1000
): { columns: string[]; rows: Record<string, unknown>[]; rowCount: number; truncated: boolean } {
  const result = executeSql(db, sql, { maxRows })
  return {
    columns: result.columns,
    rows: result.rows as Record<string, unknown>[],
    rowCount: result.rowCount,
    truncated: result.truncated,
  }
}

// ==================== Unified SQL Execution ====================