Docs: neutral wording instead of third-party product names (reverse proxies, Netbird, social networks, IDE)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

AdminPanel.cs

@@ -123,7 +123,7 @@ public sealed class AdminPanel
             forwarded.KnownIPNetworks.Clear(); // jedem Proxy vertrauen (PanelTrustProxy ist eine bewusste Entscheidung)
             forwarded.KnownProxies.Clear();
             app.UseForwardedHeaders(forwarded);
-            // Proxy unter Unterpfad (z.B. Traefik/nginx mit X-Forwarded-Prefix)
+            // Proxy unter Unterpfad (Reverse-Proxy mit X-Forwarded-Prefix)
             app.Use(async (ctx, next) =>
             {
                 string prefix = ctx.Request.Headers["X-Forwarded-Prefix"];