fix: загрузка Telegram Login Widget через JS interop для корректной работы с Blazor SPA-навигацией

src/GmRelay.Web/Components/App.razor

@@ -22,6 +22,21 @@
     <Routes @rendermode="InteractiveServer" />
     <ReconnectModal />
     <script src="@Assets["_framework/blazor.web.js"]"></script>
+    <script>
+        window.loadTelegramWidget = function (botUsername, authUrl) {
+            var container = document.getElementById('telegram-login-container');
+            if (!container) return;
+            container.innerHTML = '';
+            var script = document.createElement('script');
+            script.async = true;
+            script.src = 'https://telegram.org/js/telegram-widget.js?22';
+            script.setAttribute('data-telegram-login', botUsername);
+            script.setAttribute('data-size', 'large');
+            script.setAttribute('data-auth-url', authUrl);
+            script.setAttribute('data-request-access', 'write');
+            container.appendChild(script);
+        };
+    </script>
 </body>
 
 </html>

src/GmRelay.Web/Components/Pages/Login.razor

@@ -2,6 +2,7 @@
 @using Microsoft.AspNetCore.Components.Authorization
 @inject NavigationManager Navigation
 @inject IConfiguration Configuration
+@inject IJSRuntime JS
 
 <PageTitle>Вход — GM-Relay</PageTitle>
 
@@ -18,13 +19,7 @@
             </div>
         }
 
-        <div id="telegram-login-container">
-            <script async src="https://telegram.org/js/telegram-widget.js?22"
-                    data-telegram-login="@BotUsername"
-                    data-size="large"
-                    data-auth-url="@AuthUrl"
-                    data-request-access="write"></script>
-        </div>
+        <div id="telegram-login-container"></div>
     </div>
 </div>
 
@@ -46,4 +41,12 @@
             }
         }
     }
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (firstRender)
+        {
+            await JS.InvokeVoidAsync("loadTelegramWidget", BotUsername, AuthUrl);
+        }
+    }
 }