refactor(backend): run dataset scheduler separately

backend/cmd/api/main.go

@@ -1,11 +1,9 @@
 package main
 
 import (
-	"context"
 	"log"
 
 	"senlinai-agent/backend/internal/config"
-	"senlinai-agent/backend/internal/crontab"
 	"senlinai-agent/backend/internal/httpx"
 	"senlinai-agent/backend/internal/initdb"
 	"senlinai-agent/backend/internal/logic/ai"
@@ -33,7 +31,6 @@ func main() {
 	authService := auth.NewService(cfg.AuthSecret)
 	datasetService := dataset.NewService(models.DBService)
 	datasetHandler := dataset.NewHandler(datasetService)
-	datasetScheduler := crontab.NewDatasetScheduler(datasetService, log.Default())
 	projectService := projects.NewService()
 	documentService := documents.NewService(models.DBService, cfg.StorageDir)
 	taskService := tasks.NewService(models.DBService)
@@ -63,9 +60,6 @@ func main() {
 		searchHandler,
 		aiHandler,
 	)
-	schedulerContext, stopScheduler := context.WithCancel(context.Background())
-	defer stopScheduler()
-	go datasetScheduler.Run(schedulerContext)
 
 	if err := appRouter.Run(":" + cfg.Port); err != nil {
 		log.Fatal(err)

backend/cmd/scheduler/main.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"context"
+	"log"
+	"senlinai-agent/backend/internal/config"
+	"senlinai-agent/backend/internal/crontab"
+	"senlinai-agent/backend/internal/logic/dataset"
+	"senlinai-agent/backend/internal/models"
+)
+
+func main() {
+	cfg := config.Load()
+
+	err := models.New(cfg.DSN)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	datasetService := dataset.NewService(models.DBService)
+	datasetScheduler := crontab.NewDatasetScheduler(datasetService, log.Default())
+	schedulerContext, stopScheduler := context.WithCancel(context.Background())
+	defer stopScheduler()
+	go datasetScheduler.Run(schedulerContext)
+}