WI lists stage 3 - Group issues list
### Motivation ### Feature flags `work_items_group_issues_list` instructs the group issues page to load the Work Items List app, rather than the legacy issues list app. WARNING: `work_item_planning_view` will prevent you from visiting the proper issues list and you'll visit the consolidated list instead. ### Rollout Plan * [x] Switch `work_items_group_issues_list` for internal actors (gitlab-org) - @ramistry 2025/09/24 3pm UTC / @mdangelo6 2025-09-26 5am UTC * [ ] Monitoring plan (performance, errors), so our error budgets don’t drop - @mdangelo6 - Dashboard: https://log.gprd.gitlab.net/app/dashboards#/view/02af4d7b-59b5-4997-8024-489a9d8824b5?_g=h@2294574 * [x] Gradual rollout plan, for the `work_items_group_issues_list` feature flag * [x] 10 % @vjain-gl - 2025-10-06 * [x] 25 % @vjain-gl - 2025-10-07 * [x] 50 % @vjain-gl - 2025-10-08 * [x] 100 % @vjain-gl - 2025-10-09 * [x] Default enable feature flag @vjain-gl - 2025-10-09 * [ ] Announcements - sync up with Amanda * TBD * [ ] Clean up %"18.6" * [x] remove the feature flags * [ ] remove the legacy code
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