Merge wilm fleet alert scope fixes into wj
Brings in wilm commits:
- Make alertscope actually target fleet alerts
- Fix fleet alert server surface inherited from wj
Key changes merged:
- Added _alert_targets_endpoint() and _endpoint_scope_facts() for proper
scope filtering (hostname, assettype, computertype, location, businessunit)
- Alertscope now properly filters which endpoints receive fleet alerts
- Added comprehensive test coverage in test_endpoints_fleet_alerts.py
- Preserved wj's operator report email enhancements (FQDN, machine relationship)
Resolved conflicts:
- plugins/endpoints/api/routes.py: merged scope filtering with operator report changes
- agent csproj: bumped to 1.14.2 combining both branches' changes
e8b45bf15d