fix(vk): keep Edge auth alive after launcher handoff

backend/vk_calls_oauth_windows.go

@@ -180,8 +180,6 @@ func (s *vkEdgeSession) obtainVKCallsTokenViaBrowser(ctx context.Context) (vkLeg
 		select {
 		case <-waitCtx.Done():
 			return vkLegacyToken{}, fmt.Errorf("VK Calls OAuth не вернул access token (%s)", lastDiag)
-		case <-s.waitCh:
-			return vkLegacyToken{}, fmt.Errorf("окно VK Calls OAuth закрыто (%s)", lastDiag)
 		case <-time.After(vkEdgePollInterval):
 		}
 

backend/vk_login_session_windows.go

@@ -50,8 +50,6 @@ func waitForLegacyVKSession(ctx context.Context, session *vkEdgeSession) (bool,
 		select {
 		case <-ctx.Done():
 			return false, context.Canceled
-		case <-session.waitCh:
-			return false, errors.New("окно авторизации VK закрыто")
 		case <-time.After(vkEdgePollInterval):
 		}
 

backend/vk_webview_windows.go

@@ -40,6 +40,7 @@ type vkEdgeSession struct {
 	port      int
 	nextID    int64
 	closed    atomic.Bool
+	cdpClosed atomic.Bool
 	http      *http.Client
 	userAgent string
 }
@@ -160,9 +161,10 @@ func (s *vkEdgeSession) waitForPageTarget(ctx context.Context) (vkEdgeTarget, er
 	for {
 		select {
 		case <-ctx.Done():
+			if s.closed.Load() {
+				return vkEdgeTarget{}, errors.New("Microsoft Edge не предоставил управляемое окно VK после запуска")
+			}
 			return vkEdgeTarget{}, errors.New("Microsoft Edge не открыл окно VK вовремя")
-		case <-s.waitCh:
-			return vkEdgeTarget{}, errors.New("Microsoft Edge завершился до открытия VK")
 		default:
 		}
 
@@ -199,6 +201,7 @@ func (s *vkEdgeSession) call(ctx context.Context, method string, params map[stri
 		_ = s.conn.SetWriteDeadline(time.Now().Add(5 * time.Second))
 	}
 	if err := s.conn.WriteJSON(message); err != nil {
+		s.cdpClosed.Store(true)
 		return nil, err
 	}
 
@@ -210,6 +213,7 @@ func (s *vkEdgeSession) call(ctx context.Context, method string, params map[stri
 		}
 		_, payload, err := s.conn.ReadMessage()
 		if err != nil {
+			s.cdpClosed.Store(true)
 			return nil, err
 		}
 		var response vkCDPResponse
@@ -307,6 +311,9 @@ func (s *vkEdgeSession) navigate(ctx context.Context, targetURL string) error {
 }
 
 func (s *vkEdgeSession) exited() bool {
+	if s.conn != nil {
+		return s.cdpClosed.Load()
+	}
 	return s.closed.Load()
 }
 

backend/vk_webview_windows_test.go

@@ -0,0 +1,74 @@
+//go:build windows
+
+package backend
+
+import (
+	"context"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/gorilla/websocket"
+)
+
+func TestWaitForPageTargetAllowsEdgeLauncherHandoff(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path != "/json/list" {
+			http.NotFound(w, r)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`[{"type":"page","url":"https://vk.ru/","webSocketDebuggerUrl":"ws://127.0.0.1/devtools/page/1"}]`))
+	}))
+	defer server.Close()
+
+	parsed, err := url.Parse(server.URL)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, portText, err := net.SplitHostPort(parsed.Host)
+	if err != nil {
+		t.Fatal(err)
+	}
+	port, err := strconv.Atoi(portText)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	session := &vkEdgeSession{
+		waitCh: make(chan error, 1),
+		port:   port,
+		http:   server.Client(),
+	}
+	session.waitCh <- nil
+	session.closed.Store(true)
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+
+	target, err := session.waitForPageTarget(ctx)
+	if err != nil {
+		t.Fatalf("launcher handoff must not abort CDP discovery: %v", err)
+	}
+	if target.WebSocketDebuggerURL == "" {
+		t.Fatal("expected a page target after launcher handoff")
+	}
+}
+
+func TestVKEdgeSessionUsesCDPStateAfterLauncherHandoff(t *testing.T) {
+	session := &vkEdgeSession{conn: &websocket.Conn{}}
+	session.closed.Store(true)
+
+	if session.exited() {
+		t.Fatal("launcher exit must not mark an attached CDP browser as exited")
+	}
+
+	session.cdpClosed.Store(true)
+	if !session.exited() {
+		t.Fatal("CDP closure must mark the browser session as exited")
+	}
+}