(Improve order flow) Add existing case collaboration rule

[islean]

Description

This PR adds a rule ensuring that any existing case belongs to the customer placing the order's collaboration.

Added

Changed

Fixed

• Existing cases are forced to be part of the customer's collaboration

How to prepare for test

• Ssh to relevant server (depending on type of change)
• Use stage: us
• Paxa the environment: paxa
• Install on stage (example for Hasta):

  bash /home/proj/production/servers/resources/hasta.scilifelab.se/update-tool-stage.sh -e S_cg -t cg -b [THIS-BRANCH-NAME] -a

How to test

• Do ...

Expected test outcome

• Check that ...
• Take a screenshot and attach or copy/paste the output.

Review

• Tests executed by
• "Merge and deploy" approved by
  Thanks for filling in who performed the code review and the test!

This version is a

• MAJOR - when you make incompatible API changes
• MINOR - when you add functionality in a backwards compatible manner
• PATCH - when you make backwards compatible bug fixes or documentation/instructions

Implementation Plan

• Document in ...
• Deploy this branch on ...
• Inform to ...

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[diitaz93]

Looks good 👍 Feel free to resolve mh comments if not applicable