feat: connect explore datasets to backend

backend/cmd/api/main.go

@@ -8,6 +8,7 @@ import (
 	"senlinai-agent/backend/internal/initdb"
 	"senlinai-agent/backend/internal/logic/ai"
 	"senlinai-agent/backend/internal/logic/auth"
+	"senlinai-agent/backend/internal/logic/dataset"
 	"senlinai-agent/backend/internal/logic/files"
 	"senlinai-agent/backend/internal/logic/inbox"
 	"senlinai-agent/backend/internal/logic/projects"
@@ -28,6 +29,7 @@ func main() {
 	}
 
 	authService := auth.NewService(cfg.AuthSecret)
+	datasetHandler := dataset.NewHandler(dataset.NewService(models.DBService))
 	projectService := projects.NewService()
 	fileService := files.NewService(cfg.StorageDir, models.DBService)
 	taskService := tasks.NewService(models.DBService)
@@ -45,6 +47,7 @@ func main() {
 		cfg,
 		authService.VerifySession,
 		authHandler,
+		datasetHandler,
 		projectHandler,
 		tagHandler,
 		cronHandler,