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

agent/ShopDbEndpointAgent/ShopDbEndpointAgent.csproj

@@ -212,9 +212,12 @@
 		 server only on failure. Minor because the claim gains a field and an
 		 older agent ignoring it keeps today's behaviour. No tray change - tray
 		 stays 1.4.0. -->
-	<!-- 1.14.1: coordinated release with tray 1.6.6 (fleet alert fixes).
+	<!-- 1.14.1: coordinated release with tray 1.6.7 (merged wj 1.14.1).
 	     Merge wilm 1.14.0 changes with wj tray coordination releases. -->
-	<Version>1.14.1</Version>
+	<!-- 1.14.2: merge wilm fleet alert scope fixes and operator report enhancements.
+	     Brings in wilm's alertscope targeting and _alert_targets_endpoint function,
+	     along with wj's operator report email improvements (FQDN, machine relationship). -->
+	<Version>1.14.2</Version>
 	<InvariantGlobalization>true</InvariantGlobalization>
 	<RuntimeIdentifier>win-x64</RuntimeIdentifier>
 	<SelfContained>true</SelfContained>