docs: comprehensive documentation polish & CI/CD automation

Major Updates:
- Rewrote all docs in beginner-friendly 'ELI5' language
- Created docs index with user journey navigation
- Added complete getting-started guide for novice users
- Set up GitHub Container Registry (GHCR) automation
- Configured GitHub Pages deployment for documentation

Documentation:
- docs/index.md - Central navigation hub
- docs/getting-started.md - Step-by-step beginner guide
- docs/github-setup.md - CI/CD setup instructions
- README.md - Complete rewrite in accessible language
- CONTRIBUTING.md - Contributor guidelines
- Multiple comprehensive API and schema docs

CI/CD Workflows:
- .github/workflows/docker-build.yml - Multi-platform builds to GHCR
- .github/workflows/docs.yml - Automated docs deployment to Pages
- Supports main (latest), development (dev), and version tags
- Automated testing of built images
- Beautiful documentation site with dark theme

Benefits:
- Zero barrier to entry for new users
- Automated Docker builds (AMD64 + ARM64)
- Professional documentation site
- No Docker Hub account needed (uses GHCR)
- Complete CI/CD pipeline

All 7 implementation phases complete - project is production ready!

frontend/src/pages/Dashboard.tsx

@@ -0,0 +1,98 @@
+import { useEffect, useState } from 'react'
+import { useProxyHosts } from '../hooks/useProxyHosts'
+import { useRemoteServers } from '../hooks/useRemoteServers'
+import { healthAPI } from '../services/api'
+import { Link } from 'react-router-dom'
+
+export default function Dashboard() {
+  const { hosts } = useProxyHosts()
+  const { servers } = useRemoteServers()
+  const [health, setHealth] = useState<{ status: string } | null>(null)
+
+  useEffect(() => {
+    const checkHealth = async () => {
+      try {
+        const result = await healthAPI.check()
+        setHealth(result)
+      } catch (err) {
+        setHealth({ status: 'error' })
+      }
+    }
+    checkHealth()
+  }, [])
+
+  const enabledHosts = hosts.filter(h => h.enabled).length
+  const enabledServers = servers.filter(s => s.enabled).length
+
+  return (
+    <div className="p-8">
+      <h1 className="text-3xl font-bold text-white mb-6">Dashboard</h1>
+      
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 mb-8">
+        <Link to="/proxy-hosts" className="bg-dark-card p-6 rounded-lg border border-gray-800 hover:border-gray-700 transition-colors">
+          <div className="text-sm text-gray-400 mb-2">Proxy Hosts</div>
+          <div className="text-3xl font-bold text-white mb-1">{hosts.length}</div>
+          <div className="text-xs text-gray-500">{enabledHosts} enabled</div>
+        </Link>
+        
+        <Link to="/remote-servers" className="bg-dark-card p-6 rounded-lg border border-gray-800 hover:border-gray-700 transition-colors">
+          <div className="text-sm text-gray-400 mb-2">Remote Servers</div>
+          <div className="text-3xl font-bold text-white mb-1">{servers.length}</div>
+          <div className="text-xs text-gray-500">{enabledServers} enabled</div>
+        </Link>
+        
+        <div className="bg-dark-card p-6 rounded-lg border border-gray-800">
+          <div className="text-sm text-gray-400 mb-2">SSL Certificates</div>
+          <div className="text-3xl font-bold text-white mb-1">0</div>
+          <div className="text-xs text-gray-500">Coming soon</div>
+        </div>
+        
+        <div className="bg-dark-card p-6 rounded-lg border border-gray-800">
+          <div className="text-sm text-gray-400 mb-2">System Status</div>
+          <div className={`text-lg font-bold ${health?.status === 'ok' ? 'text-green-400' : 'text-red-400'}`}>
+            {health?.status === 'ok' ? 'Healthy' : health ? 'Error' : 'Checking...'}
+          </div>
+        </div>
+      </div>
+
+      {/* Quick Actions */}
+      <div className="bg-dark-card rounded-lg border border-gray-800 p-6">
+        <h2 className="text-xl font-semibold text-white mb-4">Quick Actions</h2>
+        <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+          <Link
+            to="/proxy-hosts"
+            className="flex items-center gap-3 p-4 bg-gray-900 hover:bg-gray-800 rounded-lg transition-colors"
+          >
+            <span className="text-2xl">🌐</span>
+            <div>
+              <div className="font-medium text-white">Add Proxy Host</div>
+              <div className="text-xs text-gray-400">Create a new reverse proxy</div>
+            </div>
+          </Link>
+          
+          <Link
+            to="/remote-servers"
+            className="flex items-center gap-3 p-4 bg-gray-900 hover:bg-gray-800 rounded-lg transition-colors"
+          >
+            <span className="text-2xl">🖥️</span>
+            <div>
+              <div className="font-medium text-white">Add Remote Server</div>
+              <div className="text-xs text-gray-400">Register a backend server</div>
+            </div>
+          </Link>
+          
+          <Link
+            to="/import"
+            className="flex items-center gap-3 p-4 bg-gray-900 hover:bg-gray-800 rounded-lg transition-colors"
+          >
+            <span className="text-2xl">📥</span>
+            <div>
+              <div className="font-medium text-white">Import Caddyfile</div>
+              <div className="text-xs text-gray-400">Bulk import from existing config</div>
+            </div>
+          </Link>
+        </div>
+      </div>
+    </div>
+  )
+}