add platform interface according to env

local/service/file_log_streamer.go

@@ -0,0 +1,38 @@
+package service
+
+import (
+	"acc-server-manager/local/model"
+	"acc-server-manager/local/utl/tracking"
+	"context"
+	"path/filepath"
+	"sync"
+
+	"github.com/google/uuid"
+)
+
+type FileLogStreamer struct {
+	tailers sync.Map // uuid.UUID → *tracking.LogTailer
+}
+
+func NewFileLogStreamer() *FileLogStreamer {
+	return &FileLogStreamer{}
+}
+
+func (s *FileLogStreamer) Start(_ context.Context, server *model.Server, handleLine func(string)) error {
+	if _, exists := s.tailers.Load(server.ID); exists {
+		return nil
+	}
+
+	logPath := filepath.Join(server.GetLogPath(), "server.log")
+	tailer := tracking.NewLogTailer(logPath, handleLine)
+	s.tailers.Store(server.ID, tailer)
+
+	go tailer.Start()
+	return nil
+}
+
+func (s *FileLogStreamer) Stop(serverID uuid.UUID) {
+	if v, exists := s.tailers.LoadAndDelete(serverID); exists {
+		v.(*tracking.LogTailer).Stop()
+	}
+}