[19.0] [MIG] queue_job: migrate + tests

[tishmen]

Scope

• queue_job, test_queue_job only

Summary

• Migrate to Odoo 19 using the working feature branch code.
• Tests create their own users (no demo data), context handling aligned with 19.0.
• Asset paths are relative under web.assets_backend.

Pre-commit

• Verified locally; no additional changes applied here to keep parity with the feature branch.

Tests

• Command:
  ./odoo/odoo-bin -c odoo.conf -d odoo_queue_pr_queue_job_base_001 --init queue_job,test_queue_job --test-tags="/queue_job,/test_queue_job" --stop-after-init
• Result: all tests green locally.