* chore: added get route for admin categories API
* chore: add tree method to mock repository
* chore: added changeset to the PR
* chore: rename id to productCategoryId in service
* chore: switch cli option to string
* chore: lint fixes, tests for parent category
* chore: move Nested Categories behind feature flag
* chore: use transformQuery hook in api
* chore: add feature flag in migrations
* chore: remove migration FF, fix FF name
* chore: add free text search + count repo function
* chore: added list endpoint for admin
* chore: added changeset for feature
* chore: address pr review comments
* chore: change oas comment
* chore: add nullable parent category filter + test