# What this PR does
Improves OpenAPI schema coverage for internal API:
- Fixes/Improves `alert group` and `feature` endpoints
- Adds `integration` and `user` endpoints
## Which issue(s) this PR fixes
https://github.com/grafana/oncall/issues/3444
## Checklist
- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
# What this PR does
- add new columns `gcom_org_contract_type`,
`gcom_org_irm_sku_subscription_start_date`, and
`gcom_org_oldest_admin_with_billing_privileges_user_id` to
`user_management_organization` table + `is_restricted` column to
`alerts_alertgroup` table
- emit two new Django signals
- `org_sync_signal` at the end of the
`engine/apps/user_management/sync.py::sync_organization` method
- `alert_group_created_signal` when a new Alert Group is created
## Checklist
- [ ] Tests updated (N/A)
- [ ] Documentation added (N/A)
- [x] `CHANGELOG.md` updated
---------
Co-authored-by: Rares Mardare <rares.mardare@grafana.com>
# What this PR does
This PR adds same approach as introduced
[here](https://github.com/grafana/oncall/pull/1236) to all alert and
alertgroup endpoints
## Which issue(s) this PR fixes
## Checklist
- [ ] Tests updated
- [ ] Documentation added
- [ ] `CHANGELOG.md` updated
---------
Co-authored-by: Joey Orlando <joey.orlando@grafana.com>
