feat: add CLI commands to manage AI Gateway keys (#25689)

Adds `coder ai-gateway keys` commands:
* `create <name>` creates key with given name
* `list` lists existing keys (alias `ls`)
* `delete <name | id>` removes key matching by name or key id, name has
priority (alias `rm`)

docs/reference/cli/ai-gateway.md

@@ -0,0 +1,16 @@
+<!-- DO NOT EDIT | GENERATED CONTENT -->
+# ai-gateway
+
+Manage AI Gateway
+
+## Usage
+
+```console
+coder ai-gateway
+```
+
+## Subcommands
+
+| Name                                      | Purpose                |
+|-------------------------------------------|------------------------|
+| [<code>keys</code>](./ai-gateway_keys.md) | Manage AI Gateway keys |

docs/reference/cli/ai-gateway_keys.md

@@ -0,0 +1,18 @@
+<!-- DO NOT EDIT | GENERATED CONTENT -->
+# ai-gateway keys
+
+Manage AI Gateway keys
+
+## Usage
+
+```console
+coder ai-gateway keys
+```
+
+## Subcommands
+
+| Name                                               | Purpose                  |
+|----------------------------------------------------|--------------------------|
+| [<code>create</code>](./ai-gateway_keys_create.md) | Create an AI Gateway key |
+| [<code>delete</code>](./ai-gateway_keys_delete.md) | Delete an AI Gateway key |
+| [<code>list</code>](./ai-gateway_keys_list.md)     | List AI Gateway keys     |

docs/reference/cli/ai-gateway_keys_create.md

@@ -0,0 +1,10 @@
+<!-- DO NOT EDIT | GENERATED CONTENT -->
+# ai-gateway keys create
+
+Create an AI Gateway key
+
+## Usage
+
+```console
+coder ai-gateway keys create <name>
+```

docs/reference/cli/ai-gateway_keys_delete.md

@@ -0,0 +1,24 @@
+<!-- DO NOT EDIT | GENERATED CONTENT -->
+# ai-gateway keys delete
+
+Delete an AI Gateway key
+
+Aliases:
+
+* rm
+
+## Usage
+
+```console
+coder ai-gateway keys delete [flags] <name|id>
+```
+
+## Options
+
+### -y, --yes
+
+|      |                   |
+|------|-------------------|
+| Type | <code>bool</code> |
+
+Bypass confirmation prompts.

docs/reference/cli/ai-gateway_keys_list.md

@@ -0,0 +1,34 @@
+<!-- DO NOT EDIT | GENERATED CONTENT -->
+# ai-gateway keys list
+
+List AI Gateway keys
+
+Aliases:
+
+* ls
+
+## Usage
+
+```console
+coder ai-gateway keys list [flags]
+```
+
+## Options
+
+### -c, --column
+
+|         |                                                               |
+|---------|---------------------------------------------------------------|
+| Type    | <code>[id\|name\|key prefix\|created at\|last used at]</code> |
+| Default | <code>id,name,key prefix,last used at,created at</code>       |
+
+Columns to display in table output.
+
+### -o, --output
+
+|         |                          |
+|---------|--------------------------|
+| Type    | <code>table\|json</code> |
+| Default | <code>table</code>       |
+
+Output format.

docs/reference/cli/index.md

@@ -66,6 +66,7 @@ Coder — A tool for provisioning self-hosted development environments with Terr
 | [<code>support</code>](./support.md)                         | Commands for troubleshooting issues with a Coder deployment.                                                                 |
 | [<code>server</code>](./server.md)                           | Start a Coder server                                                                                                         |
 | [<code>provisioner</code>](./provisioner.md)                 | View and manage provisioner daemons and jobs                                                                                 |
+| [<code>ai-gateway</code>](./ai-gateway.md)                   | Manage AI Gateway                                                                                                            |
 | [<code>agent-firewall</code>](./agent-firewall.md)           | Network isolation tool for monitoring and restricting HTTP/HTTPS requests                                                    |
 | [<code>features</code>](./features.md)                       | List Enterprise features                                                                                                     |
 | [<code>licenses</code>](./licenses.md)                       | Add, delete, and list licenses                                                                                               |