Add missing Individual User Accounts authentication step to Identity tutorial (#36959)

* Initial plan

* Add missing Individual User Accounts auth step to Identity tutorial

Fixes #33154 - The "Create a Razor web app" section was missing the
critical step of selecting Individual User Accounts authentication when
creating the project. Without this, the project has no Identity support
and the Identity scaffolder in the next section fails.

Added the authentication selection step in Visual Studio tabs and the
--auth Individual flag in .NET CLI tabs across all three moniker ranges.

Agent-Logs-Url: https://github.com/dotnet/AspNetCore.Docs/sessions/87ce90d9-242f-405a-9686-2bcb2ad74699

Co-authored-by: wadepickett <10985336+wadepickett@users.noreply.github.com>

* Add MVC CLI command and update wording across all moniker sections

Agent-Logs-Url: https://github.com/dotnet/AspNetCore.Docs/sessions/e4982afd-8824-4d91-9f84-045ac1db69ba

Co-authored-by: wadepickett <10985336+wadepickett@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: wadepickett <10985336+wadepickett@users.noreply.github.com>

Author: Copilot

aspnetcore/security/authentication/add-user-data.md

@@ -1,10 +1,11 @@
 ---
 title: Add, download, and delete user data to Identity in an ASP.NET Core project
+ai-usage: ai-assisted
 author: wadepickett
 description: Learn how to add custom user data to Identity in an ASP.NET Core project. Delete data per GDPR.
 ms.author: wpickett
-ms.date: 03/15/2022
 ms.custom: mvc
+ms.date: 04/09/2026
 uid: security/authentication/add-user-data
 ---
 # Add, download, and delete custom user data to Identity in an ASP.NET Core project
@@ -32,13 +33,20 @@ The project sample is created from a Razor Pages web app, but the instructions a
 
 * From the Visual Studio **File** menu, select **New** > **Project**. Name the project **WebApp1** if you want to it match the namespace of the [download sample](https://github.com/dotnet/AspNetCore.Docs/tree/live/aspnetcore/security/authentication/add-user-data) code.
 * Select **ASP.NET Core Web Application** > **OK**
+* In the **Authentication type** dropdown, select **Individual Accounts**.
 * Select **Web Application** > **OK**
 * Build and run the project.
 
 # [.NET CLI](#tab/net-cli)
 
 ```dotnetcli
-dotnet new webapp -o WebApp1
+dotnet new webapp --auth Individual -o WebApp1
+```
+
+For an MVC project, use the following command:
+
+```dotnetcli
+dotnet new mvc --auth Individual -o WebApp1
 ```
 
 ---
@@ -179,13 +187,20 @@ Test the app:
 
 * From the Visual Studio **File** menu, select **New** > **Project**. Name the project **WebApp1** if you want to it match the namespace of the [download sample](https://github.com/dotnet/AspNetCore.Docs/tree/live/aspnetcore/security/authentication/add-user-data) code.
 * Select **ASP.NET Core Web Application** > **OK**
+* In the **Authentication** section, select **Individual User Accounts**.
 * Select **Web Application** > **OK**
 * Build and run the project.
 
 # [.NET CLI](#tab/net-cli)
 
 ```dotnetcli
-dotnet new webapp -o WebApp1
+dotnet new webapp --auth Individual -o WebApp1
+```
+
+For an MVC project, use the following command:
+
+```dotnetcli
+dotnet new mvc --auth Individual -o WebApp1
 ```
 
 ---
@@ -401,13 +416,20 @@ The additional claim can then be used in the app. In a Razor Page, the `IAuthori
 * From the Visual Studio **File** menu, select **New** > **Project**. Name the project **WebApp1** if you want to it match the namespace of the [download sample](https://github.com/dotnet/AspNetCore.Docs/tree/live/aspnetcore/security/authentication/add-user-data) code.
 * Select **ASP.NET Core Web Application** > **OK**
 * Select **ASP.NET Core 2.2** in the dropdown
+* In the **Authentication** section, select **Individual User Accounts**.
 * Select **Web Application** > **OK**
 * Build and run the project.
 
 # [.NET CLI](#tab/net-cli)
 
 ```dotnetcli
-dotnet new webapp -o WebApp1
+dotnet new webapp --auth Individual -o WebApp1
+```
+
+For an MVC project, use the following command:
+
+```dotnetcli
+dotnet new mvc --auth Individual -o WebApp1
 ```
 
 ---