<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#38536
This PR moves all logic to create new activities to activity bounded
context.
The old service and ActivityModule methods are not facades that route to
the new activity bounded context. The facades will be removed in a
subsequent PR.
# Checklist for submitter
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
## Testing
- [x] Added/updated automated tests
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added webhook support for activity events with configurable endpoint
and enable/disable settings.
* Enhanced automation-initiated activity creation without requiring a
user context.
* Improved activity service architecture with centralized creation and
management.
* **Improvements**
* Refactored activity creation to use a dedicated service layer for
better separation of concerns.
* Added support for host-specific and automation-originated activities.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#38534
moved `/api/_version_/fleet/hosts/{id:[0-9]+}/activities` endpoint and
`MarkActivitiesAsStreamed` to activity bounded context
# Checklist for submitter
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
## Testing
- [x] Added/updated automated tests
- [x] Where appropriate, [automated tests simulate multiple hosts and
test for host
isolation](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/reference/patterns-backend.md#unit-testing)
(updates to one hosts's records do not affect another)
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added new endpoint to retrieve host-specific past activities with
pagination metadata.
* **Refactor**
* Refactored activity service architecture and authorization layer to
improve data provider integration and activity streaming capabilities.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#38234
Addresses Ian's suggestion from activity bounded context code review.
# Checklist for submitter
## Testing
- [x] Added/updated automated tests
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Refactor**
* Updated user lookup functionality across the system to return minimal
user information instead of full user objects. Changes affect multiple
system interfaces and data access layers to optimize performance and
reduce data payload for user-related operations throughout the
application.
<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#37806
This PR creates an activity bounded context and moves the following HTTP
endpoint (including the full vertical slice) there:
`/api/latest/fleet/activities`
NONE of the other activity functionality is moved! This is an
incremental approach starting with just 1 API/service endpoint.
A significant part of this PR is tests. This feature is now receiving
significantly more unit/integration test coverage than before.
Also, this PR does not remove the `ListActivities` datastore method in
the legacy code. That will be done in the follow up PR (part 2 of 2).
This refactoring effort also uncovered an activity/user authorization
issue: https://fleetdm.slack.com/archives/C02A8BRABB5/p1768582236611479
# Checklist for submitter
If some of the following don't apply, delete the relevant line.
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
## Testing
- [x] Added/updated automated tests
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
## Release Notes
* **New Features**
* Activity listing API now available with query filtering, date-range
filtering, and type-based filtering
* Pagination support for activity results with cursor-based and
offset-based options
* Configurable sorting by creation date or activity ID in ascending or
descending order
* Automatic enrichment of activity records with actor user details
(name, email, avatar)
* Role-based access controls applied to activity visibility based on
user permissions
<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
