fix(multitenancy): default to disallow anonymous tenants

Author: mheidari988

src/CleanArchitecture.Extensions.Multitenancy/Configuration/MultitenancyOptions.cs

@@ -14,7 +14,7 @@ public sealed class MultitenancyOptions
     /// Gets or sets a value indicating whether tenant-less requests are allowed when explicitly marked optional.
     /// When false, optional requirements are treated as required.
     /// </summary>
-    public bool AllowAnonymous { get; set; } = true;
+    public bool AllowAnonymous { get; set; } = false;
 
     /// <summary>
     /// Gets or sets a fallback tenant used when no tenant is resolved.

src/CleanArchitecture.Extensions.Multitenancy/README.md

@@ -163,7 +163,7 @@ public sealed class GetTenantSummaryHandler
 builder.Services.Configure<MultitenancyOptions>(options =>
 {
     options.RequireTenantByDefault = true;
-    options.AllowAnonymous = true;
+    options.AllowAnonymous = false;
     options.ResolutionOrder = new List<TenantResolutionSource>
     {
         TenantResolutionSource.Route,