Added source query validation when ClickHouse is used as a source for a dictionary.
Why it matters
This feature ensures that the source query used to populate dictionaries from ClickHouse is validated before execution. It helps prevent errors caused by invalid queries, improving reliability and user experience when working with dictionaries sourced from ClickHouse.How to use it
When defining a dictionary with ClickHouse as the source, the source query will be automatically validated. Users simply need to specify the dictionary source as ClickHouse, and the validation will be handled internally without additional configuration.