Improved folder filtering

[martastain]

This pull request adds support for filtering folders by associated tasks in the get_folders GraphQL resolver. The main change introduces a new task_filter argument, allowing clients to specify task-based criteria for folder retrieval. The implementation parses the filter, constructs a SQL Common Table Expression (CTE) to select relevant folders, and joins this with the folders query, ensuring only folders with matching tasks are returned.

Folder search endpoint

Added new endpoint [POST] /api/projects/{projectname}/folders/search that enables searching for folder ids matching given criteria (taskFilter, folderFilter, taskSearch, folderSearch). mimicking graphql folder resolver. This endpoint deprecates taskFolders endpoint that does the same, but with limited functionality

[Innders]

I just realised that we don't use folders graphql resolver for the products page but we use /folders endpoint. Can this also be added an argument to that endpoint as well?

[martastain]

I just realised that we don't use folders graphql resolver for the products page but we use /folders endpoint. Can this also be added an argument to that endpoint as well?

Unfortunatelly no. /folders endpoint uses cached hierarchy so only filtering that happens there is for ACL. The endpoint does not use SQL at all, so we cannot use SQLFilter.