Add six-language AppHost integration documentation

src/frontend/src/content/docs/app-host/go-apphost.mdx

@@ -136,6 +136,6 @@ Add `.aspire/` to `.gitignore`. The generated Go module can be recreated from `a
 
 ## See also
 
-- [Build your first Aspire app](/get-started/first-app/?lang=go)
+- [Build your first Aspire app](/get-started/first-app/?aspire-lang=go)
 - [Multi-language architecture](/architecture/multi-language-architecture/)
 - [Author multi-language integrations](/extensibility/multi-language-integration-authoring/)

src/frontend/src/content/docs/app-host/java-apphost.mdx

@@ -122,6 +122,6 @@ Keep the scaffolded `.gitignore`. Generated `.aspire` content and compiled AppHo
 
 ## See also
 
-- [Build your first Aspire app](/get-started/first-app/?lang=java)
+- [Build your first Aspire app](/get-started/first-app/?aspire-lang=java)
 - [Multi-language architecture](/architecture/multi-language-architecture/)
 - [Author multi-language integrations](/extensibility/multi-language-integration-authoring/)

src/frontend/src/content/docs/app-host/python-apphost.mdx

@@ -118,6 +118,6 @@ Add `.aspire/` and the AppHost virtual environment to `.gitignore`. Both can be
 
 ## See also
 
-- [Build your first Aspire app](/get-started/first-app/?lang=python)
+- [Build your first Aspire app](/get-started/first-app/?aspire-lang=python)
 - [Multi-language architecture](/architecture/multi-language-architecture/)
 - [Author multi-language integrations](/extensibility/multi-language-integration-authoring/)

src/frontend/src/content/docs/app-host/rust-apphost.mdx

@@ -128,6 +128,6 @@ Add `.aspire/` and Cargo build output to `.gitignore`. The generated module can
 
 ## See also
 
-- [Build your first Aspire app](/get-started/first-app/?lang=rust)
+- [Build your first Aspire app](/get-started/first-app/?aspire-lang=rust)
 - [Multi-language architecture](/architecture/multi-language-architecture/)
 - [Author multi-language integrations](/extensibility/multi-language-integration-authoring/)

src/frontend/src/content/docs/integrations/ai/github-models/github-models-get-started.mdx

@@ -64,27 +64,29 @@ Getting there is a two-step process: model the GitHub Model resource in your App
 
 1. ### Model GitHub Models in your AppHost
 
-    Add the GitHub Models hosting integration to your AppHost, then declare a model resource and reference it from the apps that need to call the API. The [GitHub Models hosting integration](/integrations/ai/github-models/github-models-host/) article walks through every capability — adding model resources, API key parameters, organization configuration, and health checks — with side-by-side C# and TypeScript examples.
+   Add the GitHub Models hosting integration to your AppHost, then declare a model resource and reference it from the apps that need to call the API. The [GitHub Models hosting integration](/integrations/ai/github-models/github-models-host/) article walks through every capability — adding model resources, API key parameters, organization configuration, and health checks — with examples for C#, TypeScript, Python, Go, Java, and Rust.
 
-    <LinkButton
-        variant='secondary'
-        iconPlacement='end'
-        icon='right-arrow'
-        href='/integrations/ai/github-models/github-models-host/'>
-        Set up GitHub Models in the AppHost
-    </LinkButton>
+   <LinkButton
+     variant="secondary"
+     iconPlacement="end"
+     icon="right-arrow"
+     href="/integrations/ai/github-models/github-models-host/"
+   >
+     Set up GitHub Models in the AppHost
+   </LinkButton>
 
 2. ### Connect from your consuming app
 
-    When you reference a GitHub Model resource from a consuming app, Aspire injects its connection information as environment variables. See [Connect to GitHub Models](/integrations/ai/github-models/github-models-connect/) for the connection properties reference and per-language examples for C#, Go, Python, and TypeScript — including the full C# client integration.
+   When you reference a GitHub Model resource from a consuming app, Aspire injects its connection information as environment variables. See [Connect to GitHub Models](/integrations/ai/github-models/github-models-connect/) for the connection properties reference and per-language examples for C#, Go, Python, and TypeScript — including the full C# client integration.
 
-    <LinkButton
-        variant='secondary'
-        iconPlacement='end'
-        icon='right-arrow'
-        href='/integrations/ai/github-models/github-models-connect/'>
-        Connect to GitHub Models
-    </LinkButton>
+   <LinkButton
+     variant="secondary"
+     iconPlacement="end"
+     icon="right-arrow"
+     href="/integrations/ai/github-models/github-models-connect/"
+   >
+     Connect to GitHub Models
+   </LinkButton>
 
 </Steps>