Improve error messages in validation

**Feature request**
It would be great to have timeout for store.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_timeout` with default `false`.

Start by locating the store implementation and the existing configuration entry points. Trace how store operations are called and identify where a timeout setting would be read. Done means the new enable_timeout option defaults to false and the store timeout behavior is covered by the relevant existing checks or tests.

Written by the indexing model from the issue text.