feat(i18n): add internationalization support with English and Spanish translations

feat(kiosk): implement kiosk report submission functionality with offline support

test(outbox): add tests for outbox functionality including report submission and error handling

feat(outbox): create outbox management for queued reports with IndexedDB persistence

feat(uuid): add UUID generation utility for client IDs

feat(qr): implement QR code generation for reporting links by site and area

feat(kiosk): create Kiosk page for reporting incidents without an account

vite.config.ts

@@ -3,12 +3,50 @@ import react from '@vitejs/plugin-react'
 import tailwindcss from '@tailwindcss/vite'
 import { readFileSync } from 'node:fs'
 import { defineConfig } from 'vite'
+import { VitePWA } from 'vite-plugin-pwa'
 
 const { version } = JSON.parse(readFileSync(new URL('./package.json', import.meta.url), 'utf8')) as { version: string }
 
 // https://vite.dev/config/
 export default defineConfig({
-  plugins: [react(), tailwindcss()],
+  plugins: [
+    react(),
+    tailwindcss(),
+    // Installable app + offline shell. Service workers need HTTPS (or localhost).
+    VitePWA({
+      registerType: 'autoUpdate',
+      includeAssets: ['favicon.svg', 'icons/apple-touch-icon.png'],
+      manifest: {
+        name: 'Open SafetyLog EHS',
+        short_name: 'SafetyLog',
+        description: 'Report hazards, near misses and incidents, and follow them through to closure.',
+        theme_color: '#163c37',
+        background_color: '#f7f8f5',
+        display: 'standalone',
+        start_url: '/',
+        scope: '/',
+        icons: [
+          { src: '/icons/icon-192.png', sizes: '192x192', type: 'image/png' },
+          { src: '/icons/icon-512.png', sizes: '512x512', type: 'image/png' },
+          { src: '/icons/maskable-512.png', sizes: '512x512', type: 'image/png', purpose: 'maskable' },
+        ],
+        shortcuts: [{ name: 'Report an incident', url: '/report', icons: [{ src: '/icons/icon-192.png', sizes: '192x192' }] }],
+      },
+      workbox: {
+        globPatterns: ['**/*.{js,css,html,svg,png,woff2}'],
+        navigateFallback: '/index.html',
+        navigateFallbackDenylist: [/^\/api\//],
+        runtimeCaching: [
+          {
+            // Just enough to open the report form offline: who you are, and the list of sites/areas.
+            urlPattern: ({ url }) => ['/api/auth/me', '/api/sites', '/api/kiosk/config'].includes(url.pathname),
+            handler: 'NetworkFirst',
+            options: { cacheName: 'api-essentials', networkTimeoutSeconds: 5, expiration: { maxEntries: 20, maxAgeSeconds: 7 * 24 * 60 * 60 } },
+          },
+        ],
+      },
+    }),
+  ],
   define: { __APP_VERSION__: JSON.stringify(version) },
   server: {
     proxy: { '/api': 'http://localhost:3000' },