fix: login với Google Oauth lỗi token invite

backend/src/main.ts

@@ -1739,6 +1739,7 @@ class TourController {
   async joinByToken(@Body() body: { token: string }, @Req() req: any) {
     const { token } = body;
     console.log('[joinByToken] Request received, token length:', token ? token.length : 0);
+    console.log('[joinByToken] Token received (full):', token);
     
     if (!token) {
       console.error('[joinByToken] No token provided');
@@ -1756,6 +1757,11 @@ class TourController {
       // Check how many invitations exist in database for debugging
       const totalInvitations = await this.prisma.tourInvitation.count();
       console.log('[joinByToken] Total invitations in database:', totalInvitations);
+      
+      // List all tokens in DB for comparison (only in dev)
+      const allInvitations = await this.prisma.tourInvitation.findMany({ select: { token: true, email: true, tourId: true } });
+      console.log('[joinByToken] All invitation tokens:', allInvitations);
+      
       throw new NotFoundException('Lời mời không hợp lệ hoặc đã bị hủy.');
     }