feat(web): add public master profiles

Add sanitized public GM profiles with publication controls, public /gm/{slug} pages, and links from public game surfaces.

Bump version -> 3.5.0

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

@@ -42,6 +42,13 @@ else if (session is not null)
         <span class="status-badge @GetStatusClass(session.Status)">@TranslateStatus(session.Status)</span>
         <h1>@session.Title</h1>
         <p>@session.GroupName</p>
+        @if (!string.IsNullOrWhiteSpace(session.MasterProfileSlug))
+        {
+            <div class="public-master-link">
+                <span>Мастер</span>
+                <a href="@MasterProfilePath(session.MasterProfileSlug)">@(session.MasterDisplayName ?? "Профиль мастера")</a>
+            </div>
+        }
         <div class="session-badges">
             @if (!string.IsNullOrWhiteSpace(session.System))
             {
@@ -101,6 +108,10 @@ else if (session is not null)
             {
                 <a class="btn-gm btn-gm-primary" href="@($"/club/{session.GroupSlug}")">Расписание клуба</a>
             }
+            @if (!string.IsNullOrWhiteSpace(session.MasterProfileSlug))
+            {
+                <a class="btn-gm btn-gm-outline" href="@MasterProfilePath(session.MasterProfileSlug)">Мастер</a>
+            }
             <a class="btn-gm btn-gm-outline" href="@PublicSessionUrl" target="_blank" rel="noopener noreferrer">Ссылка на сессию</a>
             @if (session.AllowDirectRegistration)
             {
@@ -129,6 +140,8 @@ else if (session is not null)
 
     private string PublicSessionUrl => Navigation.ToAbsoluteUri($"/s/{SessionId}").ToString();
 
+    private static string MasterProfilePath(string slug) => $"/gm/{slug}";
+
     protected override async Task OnParametersSetAsync()
     {
         loaded = false;