fix strm faild

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/strm/service_schedule.go

@@ -117,13 +117,8 @@ func (s *Service) runTaskAsync(task *domain.StrmTask) {
 			s.clearTaskRunState(task.ID, task.AccountID)
 			s.mu.Unlock()
 		}()
-		if parent == nil {
-			parent = context.Background()
-		}
-		runCtx, cancel := context.WithCancel(parent)
+		runCtx, cancel := taskRunContext(parent)
 		defer cancel()
-		runCtx, timeoutCancel := context.WithTimeout(runCtx, 30*time.Minute)
-		defer timeoutCancel()
 		s.mu.Lock()
 		s.taskCancels[task.ID] = cancel
 		s.mu.Unlock()
@@ -206,6 +201,13 @@ func (s *Service) runTaskAsync(task *domain.StrmTask) {
 	}()
 }
 
+func taskRunContext(parent context.Context) (context.Context, context.CancelFunc) {
+	if parent == nil {
+		parent = context.Background()
+	}
+	return context.WithCancel(parent)
+}
+
 func (s *Service) updateScanPersist(taskID int64, patch domain.StrmScanPatch) error {
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
 	defer cancel()

internal/strm/service_schedule_test.go

@@ -2,6 +2,7 @@ package strm
 
 import (
 	"context"
+	"errors"
 	"io"
 	"log/slog"
 	"sync"
@@ -77,3 +78,17 @@ func TestShouldRunCrossBusyCheckNoDeadlock(t *testing.T) {
 		t.Fatal("shouldRun cross busy check deadlocked")
 	}
 }
+
+func TestTaskRunContextHasNoFixedDeadline(t *testing.T) {
+	ctx, cancel := taskRunContext(context.Background())
+	if _, ok := ctx.Deadline(); ok {
+		cancel()
+		t.Fatal("STRM 任务不应有固定执行期限")
+	}
+
+	cancel()
+	<-ctx.Done()
+	if !errors.Is(ctx.Err(), context.Canceled) {
+		t.Fatalf("取消任务后错误 = %v，期望 context.Canceled", ctx.Err())
+	}
+}