feat: initial project scaffold

- React 19 + Vite + TailwindCSS frontend
- Express + TypeScript backend API
- PostgreSQL schema and migrations
- Docker Compose orchestration
- Drone CI/CD pipeline
- Pages: Dashboard, Servers, Containers, Services, Logs, Metrics, Settings

frontend/src/App.tsx

@@ -0,0 +1,25 @@
+import { Routes, Route } from 'react-router-dom'
+import Layout from '@/components/layout/Layout'
+import Dashboard from '@/pages/Dashboard'
+import Servers from '@/pages/Servers'
+import Containers from '@/pages/Containers'
+import Services from '@/pages/Services'
+import Logs from '@/pages/Logs'
+import Metrics from '@/pages/Metrics'
+import Settings from '@/pages/Settings'
+
+export default function App() {
+  return (
+    <Routes>
+      <Route path="/" element={<Layout />}>
+        <Route index element={<Dashboard />} />
+        <Route path="servers" element={<Servers />} />
+        <Route path="containers" element={<Containers />} />
+        <Route path="services" element={<Services />} />
+        <Route path="logs" element={<Logs />} />
+        <Route path="metrics" element={<Metrics />} />
+        <Route path="settings" element={<Settings />} />
+      </Route>
+    </Routes>
+  )
+}