Explain how Aspire and package management is used with samples (#1139)

* Explain how Aspire and package management is used with samples

* Update astro/src/content/docs/identityserver/samples/index.mdx

Co-authored-by: Maarten Balliauw <maarten.balliauw@duendesoftware.com>

---------

Co-authored-by: Roland Guijt <roland.guijt@gmail.com>
Co-authored-by: Maarten Balliauw <maarten.balliauw@duendesoftware.com>

Author: 3 people

astro/src/content/docs/identityserver/samples/index.mdx

@@ -27,6 +27,25 @@ Most of the samples include both their own IdentityServer implementation and the
 The [_Basics_](/identityserver/samples/basics.mdx) samples use a [shared IdentityServer implementation](https://github.com/DuendeSoftware/Samples/tree/main/IdentityServer/v8/IdentityServerHost).
 Some samples use our public [demo instance of IdentityServer](https://demo.duendesoftware.com/).
 
+### Aspire
+
+To simplify local development, many samples include an *Aspire host* project. This eliminates the need to run or debug individual projects manually, and provides a better experience running the samples.
+
+* Launching the `AppHost` project makes sure all projects are started in the correct order
+* Relevant projects reference the `Aspire.ServiceDefaults` project, which automatically configures health endpoints and telemetry for the Aspire dashboard.
+* If a sample includes a database, you can use the database icon directly inside the Aspire dashboard to create the database and run migrations.
+
+### Package Management
+
+These samples use **Central Package Management**. While individual project files still reference NuGet packages, they do not contain version numbers. Instead, dependency versions are managed in two places:
+
+* **NuGet Packages:** Managed via the `Directory.Packages.props` file located in each IdentityServer and BFF version directory.
+* **Aspire SDK:** Centrally defined in the `global.json` file at the repository root.
+
+:::note[Always clone the full samples repository]
+Because of this centralized structure, samples will only compile and run correctly if the entire repository is cloned. Downloading individual project folders will result in build errors.
+:::
+
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