…Agent

Documents the API rename from WithComputeEnvironment/PublishAsHostedAgent to
AsHostedAgent introduced in microsoft/aspire#17669. Updates all code examples,
section headings, and prose in the Azure AI Foundry hosting integration docs to
use the new AsHostedAgent method. Also clarifies that the default Azure Container
Registry is only created in publish mode, not local run mode.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Updated [Aspire.Hosting.AppHost](https://github.com/microsoft/aspire)
from 13.3.5 to 13.4.0.

<details>
<summary>Release notes</summary>

_Sourced from [Aspire.Hosting.AppHost's
releases](https://github.com/microsoft/aspire/releases)._

## 13.4.0

# Aspire 13.4.0

Aspire 13.4 brings major improvements to Foundry hosted agents, the
Aspire skills system, CLI reliability, and TypeScript AppHost stability
— with cross-compute-environment deployment now working end-to-end and
**TypeScript AppHost support — Aspire's polyglot story — reaching
general availability (GA)**.

## Highlights

- 🎉 **TypeScript AppHost is now GA** — First introduced as a preview in
an earlier version of Aspire, the TypeScript AppHost — Aspire's polyglot
story — has reached the quality bar for general availability and is now
officially supported for production use alongside C#. As part of GA, the
experimental markers on the Azure TypeScript AppHost (ATS) APIs have
been removed and the ATS surface area is stable for 13.4.
- 🤖 **Foundry hosted agents** — Protocol selection (`responses` /
`invocations`) is now configurable from both C# and TypeScript AppHosts.
Cross-compute-environment deployments (e.g., a Foundry hosted agent + an
AKS consumer) now wire up correctly: endpoint resolution and the
required **Azure AI User** RBAC role assignment on the Foundry account
are generated automatically — no manual `az role assignment create`
steps needed.
- 🛠️ **Aspire skills catalog from bundle** — `aspire agent init` now
drives its installable skill catalog from the bundle manifest, surfacing
all six bundled skills (previously only three were visible). An embedded
snapshot means the full catalog is available even in airgapped /
disconnected environments.
- 🔧 **CLI reliability** — Multiple CLI fixes: implicit-channel discovery
restored, `aspire stop` no longer falsely reports failure on Unix,
`aspire ps` no longer includes raw resource data (use `aspire describe`
for detailed state), `aspire new` prefers the current CLI template
version, friendly error for `aspire do --list-steps` without a step
argument, and improved `--search` option description with documentation
link.
- ⌨️ **TypeScript AppHost** — Fixed a deadlock that occurred when lazy
options callbacks invoked async methods; dev-localhost resource service
URLs are now accepted for local development without extra configuration.
- 📊 **Dashboard** — Summary log formatting improved for readability,
`dotnet watch` dashboard auto-launch signal restored, and dynamic-port
handling fixed for `DistributedApplicationTestingBuilder`.
- ☸️ **Kubernetes** — The Helm CLI minimum version (≥ 4.2.0) is now
validated before a Kubernetes deploy, giving a clear error instead of a
cryptic failure.
- ⚠️ **`Aspire.Hosting.Blazor` ships as preview in 13.4** — A packaging
issue with the Blazor gateway scripts means the package is intentionally
marked preview for this release. Full stable support is targeted for
13.5.

## ⚠️ Notable changes

- `aspire ps` no longer includes raw resource data in its output. Use
`aspire describe <resource>` to inspect detailed resource state.
- Foundry hosted agent builder API shape updated — see
[#​17545](microsoft/aspire#17545) and
[#​17669](microsoft/aspire#17669) for the
updated C# and TypeScript signatures.
- `Aspire.Hosting.Blazor` is preview-versioned in 13.4
(`SuppressFinalPackageVersion=true`). A fix for the `addBlazorGateway`
gateway script resolution error in TypeScript AppHosts is tracked in
[#​17685](microsoft/aspire#17685).

## 📖 Learn more

For the full details on everything in this release, check out the
[What's new in Aspire 13.4](https://aspire.dev/whats-new/aspire-13-4/)
documentation.

Thank you to all the community contributors who helped make Aspire 13.4
possible! 💜

---
*Full Changelog:
microsoft/aspire@v13.3.5...v13.4.0*

*Full commit:
[becb48e2d61099e35ae336d527d3875e928d6594](microsoft/aspire@becb48e2d61099e35ae336d527d3875e928d6594)*

> Generated by [Generate release notes for a new stable Aspire
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