feat: label build identity in metrics

internal/observability/runtime.go

@@ -6,6 +6,8 @@ import (
 	"errors"
 	"runtime"
 	"time"
+
+	"git.yuntuo.hk/k2safe/orbit/internal/buildinfo"
 )
 
 // initializeProcess is called once by the registry constructor.
@@ -14,7 +16,8 @@ func (r *Registry) initializeProcess() {
 		return
 	}
 	r.SetGauge("orbit_process_start_time_seconds", float64(r.started.Unix()), nil)
-	r.SetGauge("orbit_build_info", 1, Labels{"go_version": runtime.Version()})
+	build := buildinfo.Current()
+	r.SetGauge("orbit_build_info", 1, Labels{"go_version": build.GoVersion, "version": build.Version, "revision": build.Revision})
 	r.RecordProcess()
 	for _, component := range components {
 		labels := Labels{"component": component}