docs: add comments for all functions

web/job/xray_traffic_job.go

@@ -10,6 +10,7 @@ import (
 	"github.com/valyala/fasthttp"
 )
 
+// XrayTrafficJob collects and processes traffic statistics from Xray, updating the database and optionally informing external APIs.
 type XrayTrafficJob struct {
 	settingService  service.SettingService
 	xrayService     service.XrayService
@@ -17,10 +18,12 @@ type XrayTrafficJob struct {
 	outboundService service.OutboundService
 }
 
+// NewXrayTrafficJob creates a new traffic collection job instance.
 func NewXrayTrafficJob() *XrayTrafficJob {
 	return new(XrayTrafficJob)
 }
 
+// Run collects traffic statistics from Xray and updates the database, triggering restart if needed.
 func (j *XrayTrafficJob) Run() {
 	if !j.xrayService.IsXrayRunning() {
 		return