[ML] [Meta] Spaces follow up tasks

[jgowdyelastic]

• API tests [ML] [Meta] Spaces follow up tasks #82415 (comment) - [ML] Initial API integration tests for ML jobs in spaces #84789 (7.11)
• Saved objects initialisation, assign Logs jobs to correct space. Check group name and parse job id to get space. [ML] Additional job spaces initialization #83127 (7.11)
• Deleting jobs management. When deleting a job, it should untag from current space. until job has only one space left.
  • Add delete job ability check endpoint. check if user has access to all spaces the job is in. (7.11)
• Management page UI
  • Space assignment [ML] Space management UI #83320 (7.11)
  • Jobs repair [ML] Space management UI #83320 (7.11)
  • Rename 'Repair' to 'Sync' in UI and for endpoint (7.11)
  • Truncate long lists of spaces with "+5 more"
• Add flag to modules setup endpoint to allow assigning jobs to all spaces. [ML] Additional job spaces initialization #83127
  • If the user does not have permission to save to * space, save to current space (7.11)
• Add "job exists" endpoint which checks in all spaces whether the specified id exists.
  • use "job exists" endpoint in wizards [ML] Adding non-space aware checks for existing jobs #82814 (7.11)

[elasticmachine]

Pinging @elastic/ml-ui (:ml)

[jgowdyelastic]

Additional tasks for #64172

[jgowdyelastic]

API test ideas

Notes on the kind of api tests needed.

Job foo doesn't exist

• call /api/ml/anomaly_detectors/foo, expect 404
• call /api/ml/anomaly_detectors/foo* expect empty jobs list

Job foo does exist, but is in different space.

• call /api/ml/anomaly_detectors/foo, expect 404
• call /api/ml/anomaly_detectors/foo* expect empty jobs list

Create group test_group and add a job to it

• call /api/ml/anomaly_detectors/test_group, expect correct job.
• call /api/ml/anomaly_detectors/test_group*, expect correct job.
• repeat but with job in different space

Create two spaces, space 1 and space 2

• Create a job in space 1.
  From space 2:
  • Call `job_summary, ensure the job is not listed.
  • Ensure the job cannot be opened, closed or deleted.

With a user who does not have access to space 2

• Create a job in space 1 and space 2. call /api/ml/saved_objects/jobs_spaces' ensure space 2 is not listed.

[pheyos]

Initial API tests done in #84789