docs: switch GitHub Pages deployment to chiefloop.com

Remove /chief/ base path, update OG image URLs, and add CNAME file
for custom domain.

Author: MiniCodeMonkey

docs/.vitepress/config.ts

@@ -6,19 +6,17 @@ import path from 'node:path'
 export default defineConfig({
   title: 'Chief',
   description: 'Autonomous PRD Agent — Write a PRD, run Chief, watch your code get built.',
-  base: '/chief/',
-
   head: [
-    ['link', { rel: 'icon', href: '/chief/favicon.ico' }],
+    ['link', { rel: 'icon', href: '/favicon.ico' }],
     ['meta', { property: 'og:type', content: 'website' }],
     ['meta', { property: 'og:site_name', content: 'Chief' }],
     ['meta', { property: 'og:title', content: 'Chief — Autonomous PRD Agent' }],
     ['meta', { property: 'og:description', content: 'Write a PRD, run Chief, watch your code get built. An autonomous agent that transforms product requirements into working code.' }],
-    ['meta', { property: 'og:image', content: 'https://minicodemonkey.github.io/chief/images/og-default.png' }],
+    ['meta', { property: 'og:image', content: 'https://chiefloop.com/images/og-default.png' }],
     ['meta', { name: 'twitter:card', content: 'summary_large_image' }],
     ['meta', { name: 'twitter:title', content: 'Chief — Autonomous PRD Agent' }],
     ['meta', { name: 'twitter:description', content: 'Write a PRD, run Chief, watch your code get built. An autonomous agent that transforms product requirements into working code.' }],
-    ['meta', { name: 'twitter:image', content: 'https://minicodemonkey.github.io/chief/images/og-default.png' }],
+    ['meta', { name: 'twitter:image', content: 'https://chiefloop.com/images/og-default.png' }],
   ],
 
   // Force dark mode only

docs/public/CNAME

@@ -0,0 +1 @@
+chiefloop.com