Add CLI Reference section to sidebar and publish CLI docs

Publish the CLI installation and authentication pages by removing
draft: true, and add a CLI Reference section to the sidebar with
Installation, Authentication, and Commands pages.

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: kylemclaren

src/content/docs/cli/authentication.mdx

@@ -1,7 +1,6 @@
 ---
 title: CLI Authentication
 description: Authenticate the Sprites CLI with your Fly.io account
-draft: true
 ---
 
 import { LinkCard, CardGrid } from '@/components/react';

src/content/docs/cli/installation.mdx

@@ -1,7 +1,6 @@
 ---
 title: CLI Installation
 description: Install the Sprites CLI on macOS, Linux, or Windows
-draft: true
 ---
 
 import { Callout, LinkCard, CardGrid } from '@/components/react';

src/lib/sidebar.ts

@@ -112,6 +112,14 @@ export const sidebarConfig: SidebarGroup[] = [
       { label: 'Working with Sprites', slug: 'working-with-sprites' },
     ],
   },
+  {
+    label: 'CLI Reference',
+    items: [
+      { label: 'Installation', slug: 'cli/installation' },
+      { label: 'Authentication', slug: 'cli/authentication' },
+      { label: 'Commands', slug: 'cli/commands' },
+    ],
+  },
   {
     label: 'API Reference',
     items: [