Fix #12368 - userDelete new parameter

[offtherailz]

Description

Pass cascadeResourceDelete=USERSESSION query parameter to the GeoStore DELETE /users/user/{id} endpoint when deleting a user from the User Manager. This triggers backend cleanup of USERSESSION resources solely owned by the deleted user, preventing orphaned session resources in the database.

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/geosolutions-it/MapStore2/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x", remove the others)

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

Issue

What is the current behavior?

When a user is deleted via the User Manager, their USERSESSION resources remain orphaned in the database with no owner.

Refs #12368

What is the new behavior?

The DELETE request now includes ?cascadeResourceDelete=USERSESSION. GeoStore (≥ geosolutions-it/geostore#544) deletes all USERSESSION resources solely owned by the user before removing the user. Shared resources and resources of other categories are untouched. If the backend does not support the parameter or no resources are found, user deletion proceeds normally.

Breaking change

Does this PR introduce a breaking change? (check one with "x", remove the other)

• Yes, and I documented them in migration notes
• No

Other useful information

Requires GeoStore ≥ 2.6, so on MapStore:

• Fix #12504 - Migrate to GeoStore 2.6 #12518

On geostore

• 2.6 [Backport 2.6.x] Support cascadeResourceDelete on user deletion geostore#564
• 2.7 Support cascadeResourceDelete on user deletion geostore#544

[tdipisa]

This is now ready for review. Assigned to you @dsuren1. Thanks.

[offtherailz]

Successfully created backport PR for 2026.02.xx:

• [Backport 2026.02.xx] Fix #12368 - userDelete new parameter #12536

[dsuren1]

@ElenaGallo Kindly test this change in DEV when available. Thanks!