fix mihoyo login no login_ticket crash

src/Snap.Hutao/Snap.Hutao/View/Page/LoginMihoyoUserPage.xaml.cs

@@ -57,7 +57,12 @@ internal sealed partial class LoginMihoyoUserPage : Microsoft.UI.Xaml.Controls.P
         CoreWebView2CookieManager manager = WebView.CoreWebView2.CookieManager;
         IReadOnlyList<CoreWebView2Cookie> cookies = await manager.GetCookiesAsync("https://user.mihoyo.com");
 
-        Cookie loginTicketCookie = Cookie.FromCoreWebView2Cookies(cookies);
+        Cookie webCookie = Cookie.FromCoreWebView2Cookies(cookies);
+        if (!webCookie.TryGetCookieToken(out Cookie? loginTicketCookie))
+        {
+            return;
+        }
+
         Response<ListWrapper<NameToken>> multiTokenResponse = await Ioc.Default
             .GetRequiredService<AuthClient>()
             .GetMultiTokenByLoginTicketAsync(loginTicketCookie, false)

src/Snap.Hutao/Snap.Hutao/Web/Hoyolab/Cookie.cs

@@ -108,6 +108,23 @@ internal sealed partial class Cookie
         return new(cookieMap);
     }
 
+    public bool TryGetLoginTicket([NotNullWhen(true)] out Cookie? cookie)
+    {
+        if (TryGetValue(LOGIN_TICKET, out string? loginTicket) && TryGetValue(LOGIN_UID, out string? loginUid))
+        {
+            cookie = new Cookie(new()
+            {
+                [LOGIN_TICKET] = loginTicket,
+                [LOGIN_UID] = loginUid,
+            });
+
+            return true;
+        }
+
+        cookie = null;
+        return false;
+    }
+
     public bool TryGetSToken(bool isOversea, [NotNullWhen(true)] out Cookie? cookie)
     {
         return isOversea ? TryGetLegacySToken(out cookie) : TryGetSToken(out cookie);