feat: Archivum skeleton — Go/GraphQL backend + Vue 3 PWA frontend

Full project scaffold: multi-stage Dockerfile (ARM64/AMD64), AsciiDoc↔TipTap
bridge, Setup Wizard, CodeMirror source editor, Git-backed storage layer,
LDAP+JWT auth skeleton, Tailwind mobile-first layout, and VS Code build/push
tasks targeting registry at 192.168.0.19:5000.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/vite.config.ts

@@ -0,0 +1,46 @@
+import { defineConfig } from 'vite'
+import vue from '@vitejs/plugin-vue'
+import { VitePWA } from 'vite-plugin-pwa'
+import { resolve } from 'path'
+
+export default defineConfig({
+  plugins: [
+    vue(),
+    VitePWA({
+      registerType: 'autoUpdate',
+      includeAssets: ['favicon.ico', 'apple-touch-icon.png'],
+      manifest: {
+        name: 'Archivum',
+        short_name: 'Archivum',
+        description: 'AsciiDoc wiki with Git history',
+        theme_color: '#1e293b',
+        background_color: '#0f172a',
+        display: 'standalone',
+        icons: [
+          { src: 'icons/icon-192.png', sizes: '192x192', type: 'image/png' },
+          { src: 'icons/icon-512.png', sizes: '512x512', type: 'image/png' },
+          { src: 'icons/icon-512.png', sizes: '512x512', type: 'image/png', purpose: 'any maskable' },
+        ],
+      },
+      workbox: {
+        globPatterns: ['**/*.{js,css,html,ico,png,svg,woff2}'],
+        runtimeCaching: [
+          {
+            urlPattern: /\/graphql$/,
+            handler: 'NetworkFirst',
+            options: { cacheName: 'api-cache' },
+          },
+        ],
+      },
+    }),
+  ],
+  resolve: {
+    alias: { '@': resolve(__dirname, 'src') },
+  },
+  server: {
+    port: 5173,
+    proxy: {
+      '/graphql': { target: 'http://localhost:4000', changeOrigin: true },
+    },
+  },
+})