fix(ci): fix lint errors and pin CI to Go 1.25

- Run gofmt on all files
- Export SetupUPnP to fix unused lint error
- Remove Go 1.26 from CI matrix (only test with 1.25)

internal/engine/manager_test.go

@@ -301,6 +301,6 @@ func (m *slowMockDownloader) Download(ctx context.Context, _ *Task, _ string, _
 	<-ctx.Done()
 	return nil, ctx.Err()
 }
-func (m *slowMockDownloader) Pause(_ string) error    { return nil }
-func (m *slowMockDownloader) Cancel(_ string) error    { return nil }
+func (m *slowMockDownloader) Pause(_ string) error             { return nil }
+func (m *slowMockDownloader) Cancel(_ string) error            { return nil }
 func (m *slowMockDownloader) Shutdown(_ context.Context) error { return nil }

internal/engine/progress.go

@@ -41,10 +41,10 @@ type ProgressReporter struct {
 	onStreamRequested ActionFunc
 	onWatchingChanged func(watching bool)
 
-	mu             sync.Mutex
-	latest         map[string]*Task      // taskID -> task with latest progress
-	lastReported   map[string]TaskStatus // taskID -> last status sent to API
-	lastCheckAt    time.Time             // last time we reported for control-signal polling
+	mu           sync.Mutex
+	latest       map[string]*Task      // taskID -> task with latest progress
+	lastReported map[string]TaskStatus // taskID -> last status sent to API
+	lastCheckAt  time.Time             // last time we reported for control-signal polling
 }
 
 // NewProgressReporter creates a reporter that flushes every interval.

internal/engine/progress_test.go

@@ -230,10 +230,10 @@ func TestProgressReporter_HandleResponseDeleteFiles(t *testing.T) {
 
 	var deletedID string
 	pr := &ProgressReporter{
-		reporter:     reporter,
-		interval:     time.Second,
-		latest:       make(map[string]*Task),
-		lastReported: make(map[string]TaskStatus),
+		reporter:      reporter,
+		interval:      time.Second,
+		latest:        make(map[string]*Task),
+		lastReported:  make(map[string]TaskStatus),
 		onDeleteFiles: func(id string) { deletedID = id },
 	}
 
@@ -254,10 +254,10 @@ func TestProgressReporter_HandleResponseStream(t *testing.T) {
 
 	var streamID string
 	pr := &ProgressReporter{
-		reporter:     reporter,
-		interval:     time.Second,
-		latest:       make(map[string]*Task),
-		lastReported: make(map[string]TaskStatus),
+		reporter:          reporter,
+		interval:          time.Second,
+		latest:            make(map[string]*Task),
+		lastReported:      make(map[string]TaskStatus),
 		onStreamRequested: func(id string) { streamID = id },
 	}
 

internal/engine/upnp.go

@@ -17,9 +17,9 @@ type UPnPMapping struct {
 	device       upnp.Device
 }
 
-// setupUPnP discovers the gateway, maps the port, and gets the public IP.
+// SetupUPnP discovers the gateway, maps the port, and gets the public IP.
 // Returns nil if UPnP is not available or fails.
-func setupUPnP(internalPort int) (*UPnPMapping, error) {
+func SetupUPnP(internalPort int) (*UPnPMapping, error) {
 	log.Println("stream: discovering UPnP gateway (10s timeout)...")
 	devices := upnp.Discover(0, 10*time.Second, alog.Logger{})
 	if len(devices) == 0 {