refactor: extract docs to standalone site at autoforge.cc

- Remove embedded documentation system (18 files) from main UI:
  - Delete ui/src/components/docs/ (DocsPage, DocsContent, DocsSidebar,
    DocsSearch, docsData, and all 13 section components)
  - Delete ui/src/hooks/useHashRoute.ts (only used for docs routing)
- Simplify ui/src/main.tsx: remove Router component, render App directly
  inside QueryClientProvider (no more hash-based routing)
- Update docs button in App.tsx header to open https://autoforge.cc in
  a new tab instead of navigating to #/docs hash route
- Add logo to header
- Add temp-docs/ to .gitignore
- Update CLAUDE.md with current architecture documentation

The documentation has been extracted into a separate repository and
deployed as a standalone Vite + React site at https://autoforge.cc.
This reduces the main UI bundle and decouples docs from app releases.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ui/src/main.tsx

@@ -1,11 +1,8 @@
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
-import { useHashRoute } from './hooks/useHashRoute'
 import App from './App'
-import { DocsPage } from './components/docs/DocsPage'
 import './styles/globals.css'
-// Note: Custom theme removed - using shadcn/ui theming instead
 
 const queryClient = new QueryClient({
   defaultOptions: {
@@ -16,16 +13,10 @@ const queryClient = new QueryClient({
   },
 })
 
-function Router() {
-  const { route } = useHashRoute()
-  if (route === 'docs') return <DocsPage />
-  return <App />
-}
-
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
     <QueryClientProvider client={queryClient}>
-      <Router />
+      <App />
     </QueryClientProvider>
   </StrictMode>,
 )