APM Improvements (#11103)

# Checklist for submitter

If some of the following don't apply, delete the relevant line.

- [ ] Changes file added for user-visible changes in `changes/` or
`orbit/changes/`.
See [Changes
files](https://fleetdm.com/docs/contributing/committing-changes#changes-files)
for more information.
- [ ] Documented any API changes (docs/Using-Fleet/REST-API.md or
docs/Contributing/API-for-contributors.md)
- [ ] Documented any permissions changes
- [ ] Input data is properly validated, `SELECT *` is avoided, SQL
injection is prevented (using placeholders for values in statements)
- [ ] Added support on fleet's osquery simulator `cmd/osquery-perf` for
new osquery data ingestion features.
- [ ] Added/updated tests
- [ ] Manual QA for all new/changed functionality
  - For Orbit and Fleet Desktop changes:
- [ ] Manual QA must be performed in the three main OSs, macOS, Windows
and Linux.
- [ ] Auto-update manual QA, from released version of component to new
version (see [tools/tuf/test](../tools/tuf/test/README.md)).

server/contexts/ctxerr/ctxerr.go

@@ -22,6 +22,7 @@ import (
 	"github.com/fleetdm/fleet/v4/server/contexts/host"
 	"github.com/fleetdm/fleet/v4/server/contexts/viewer"
 	"github.com/fleetdm/fleet/v4/server/fleet"
+	"go.elastic.co/apm/v2"
 )
 
 type key int
@@ -127,6 +128,10 @@ func wrapError(ctx context.Context, msg string, cause error, data map[string]int
 	}
 
 	edata := encodeData(ctx, data, !isFleetError)
+
+	// As a final step, report error to APM.
+	// This is safe to to even if APM is not enabled.
+	apm.CaptureError(ctx, cause).Send()
 	return &FleetError{msg, stack, cause, edata}
 }