preserve resources docs

[sujaya-sys]

Documenting the following feature:

When destroying a project (npx checkly destroy) we have so far deleted all project resources (checks, groups, etc.) along with the project. There's now a --preserve-resources option which allows one to delete the project while leaving the resources around. After this is done the resources are not bound to any project and are essentially equivalent to "UI-only" resources.
This also introduces a way to undo npx checkly import. Previously, after finishing the import process, it was not possible to re-import the same resources again because they were already a part of the project you imported them to. By deleting the project with --preserve-resources, it is now possible to make the resources UI-only resources again, which allows them to be imported again.

[mintlify]

Preview deployment for your docs. Learn more about Mintlify Previews.

Project	Status	Preview	Updated (UTC)
checkly-422f444a	🟢 Ready	View Preview	Apr 20, 2026, 7:33 AM

💡 Tip: Enable Workflows to automatically generate PRs for you.