docs: update CLI command docs for non-interactive options (aspire#16235)

- aspire update: add --yes/-y and --nuget-config-dir options, remove
  outdated note that non-interactive mode is unsupported
- aspire agent init: add --workspace-root, --skill-locations, and
  --skills options
- aspire new: update description for non-interactive error behavior,
  add --suppress-agent-init option, remove outdated limitation note

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

Author: 2 people

src/frontend/src/content/docs/reference/cli/commands/aspire-agent-init.mdx

@@ -33,6 +33,18 @@ The command performs the following:
 
 The following options are available:
 
+- **`--workspace-root`**
+
+  Path to the workspace root directory. When not specified, the current directory is used as the workspace root.
+
+- **`--skill-locations`**
+
+  Comma-separated list of skill locations to configure (for example, `vscode,github`). Use `all` to configure all detected locations, or `none` to skip. When not specified, the command prompts interactively.
+
+- **`--skills`**
+
+  Comma-separated list of skills to enable (for example, `mcp,cli`). Use `all` to enable all available skills, or `none` to skip. When not specified, the command prompts interactively.
+
 - <Include relativePath="reference/cli/includes/option-help.md" />
 
 - <Include relativePath="reference/cli/includes/option-log-level.md" />

src/frontend/src/content/docs/reference/cli/commands/aspire-new.mdx

@@ -27,12 +27,7 @@ The `aspire new` command is the driver for creating Aspire projects, apps, or so
 
 This command defaults to **interactive** mode. When executed without any options, the command prompts you for the project template and version, name, and output folder. When the `--name`, `--output`, and `--version` options are provided, the command runs **non-interactive** and generates files based on the command template.
 
-<Aside type="note">
-  The `aspire new` command currently requires an interactive terminal even when
-  all options are provided. The `--non-interactive` flag is not fully supported.
-  In CI/CD pipelines or other non-interactive environments, use `dotnet new`
-  with Aspire templates as an alternative for project creation.
-</Aside>
+When run non-interactively without specifying a template subcommand, the command displays an error message listing the available templates.
 
 ## Interactive prompts
 
@@ -104,6 +99,10 @@ The following options are available:
 
   Channel to use for templates (`stable`, `staging`, `daily`).
 
+- **`--suppress-agent-init`**
+
+  Suppress the prompt to initialize MCP server configuration for agent environments after project creation.
+
 - <Include relativePath="reference/cli/includes/option-help.md" />
 
 - <Include relativePath="reference/cli/includes/option-log-level.md" />

src/frontend/src/content/docs/reference/cli/commands/aspire-update.mdx

@@ -9,7 +9,6 @@ import AsciinemaPlayer from '@components/AsciinemaPlayer.astro';
 
 import Include from '@components/Include.astro';
 import LearnMore from '@components/LearnMore.astro';
-import { Aside } from '@astrojs/starlight/components';
 
 ## Name
 
@@ -37,13 +36,6 @@ The command performs the following:
 - Validates package compatibility before applying changes
 - Provides colorized output with detailed summary of changes
 
-<Aside type="note">
-  The `aspire update` command requires an interactive terminal. The
-  `--non-interactive` flag is not currently supported for this command. In CI/CD
-  pipelines or other non-interactive environments, update Aspire packages
-  manually using `aspire add {package}` or equivalent tooling.
-</Aside>
-
 ## Options
 
 The following options are available:
@@ -58,6 +50,14 @@ The following options are available:
 
   Channel to update to (`stable`, `staging`, `daily`).
 
+- **`-y, --yes`**
+
+  Automatically confirm all prompts without user input. Use this option in CI/CD pipelines or other non-interactive environments to skip confirmation dialogs.
+
+- **`--nuget-config-dir`**
+
+  Path to the directory containing the `NuGet.Config` file to use when searching for packages. When not specified, the command searches for a `NuGet.Config` file in the current directory and its parents.
+
 - <Include relativePath="reference/cli/includes/option-help.md" />
 
 - <Include relativePath="reference/cli/includes/option-log-level.md" />
@@ -83,3 +83,15 @@ The following options are available:
   ```bash title="Aspire CLI"
   aspire update --apphost './projects/apphost/orchestration.AppHost.csproj'
   ```
+
+- Update packages in a CI/CD pipeline without interactive prompts:
+
+  ```bash title="Aspire CLI"
+  aspire update --yes --non-interactive
+  ```
+
+- Update packages using a specific NuGet configuration file:
+
+  ```bash title="Aspire CLI"
+  aspire update --nuget-config-dir './config'
+  ```