Fix Tenant Restriction even in normal Requests

Author: mckaragoz

src/CodeBeam.UltimateAuth.Core/MultiTenancy/UAuthTenantContext.cs

@@ -20,5 +20,6 @@ private UAuthTenantContext(TenantKey tenant)
 
     public static UAuthTenantContext SingleTenant() => new(TenantKey.Single);
     public static UAuthTenantContext System() => new(TenantKey.System);
+    public static UAuthTenantContext Unresolved() => new(TenantKey.Unresolved);
     public static UAuthTenantContext Resolved(TenantKey tenant) => new(tenant);
 }

src/CodeBeam.UltimateAuth.Core/Options/UAuthClientProfile.cs

@@ -2,11 +2,11 @@
 
 public enum UAuthClientProfile
 {
-    NotSpecified,
-    BlazorWasm,
-    BlazorServer,
-    Maui,
-    WebServer,
-    Api,
-    UAuthHub = 1000
+    NotSpecified = 0,
+    BlazorWasm = 10,
+    BlazorServer = 20,
+    Maui = 30,
+    WebServer = 40,
+    Api = 50,
+    UAuthHub = 100
 }

src/CodeBeam.UltimateAuth.Server/Middlewares/TenantMiddleware.cs

@@ -30,17 +30,12 @@ public async Task InvokeAsync(HttpContext context, ITenantResolver resolver, IOp
 
         resolution = await resolver.ResolveAsync(context);
 
+        // Middleware must allow unresolved tenants for non-auth requests.
+        // Exception should be handled only in AuthFlowContextFactory, where we can check if the request is for auth endpoints or not.
         if (!resolution.IsResolved)
         {
-            //if (opts.RequireTenant)
-            //{
-            //    context.Response.StatusCode = StatusCodes.Status400BadRequest;
-            //    await context.Response.WriteAsync("Tenant is required.");
-            //    return;
-            //}
-
-            context.Response.StatusCode = StatusCodes.Status400BadRequest;
-            await context.Response.WriteAsync("Tenant could not be resolved.");
+            context.Items[UAuthConstants.HttpItems.TenantContextKey] = UAuthTenantContext.Unresolved();
+            await _next(context);
             return;
         }