Pin Vite to 5173 without an Aspire proxy so AppHost can start.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/HSchool.AppHost/AppHost.cs

@@ -23,9 +23,9 @@ if (headless)
 
 if (!headless)
 {
-    // Pin the Vite port so `tailscale serve --bg 5173` always targets the client.
+    // Pin Vite itself to 5173 (no Aspire proxy): Tailscale Serve targets that port.
     var client = builder.AddViteApp("client", "../HSchool.Client")
-        .WithHttpEndpoint(port: 5173, targetPort: 5173)
+        .WithHttpEndpoint(port: 5173, targetPort: 5173, isProxied: false)
         .WithReference(server)
         .WaitFor(server);