feat(cannaiq): Add PWA support with vite-plugin-pwa

- Add vite-plugin-pwa for service worker and manifest generation
- Configure workbox for asset caching and API runtime caching
- Add sharp for icon generation from SVG
- Create generate-icons.js script to create 192x192 and 512x512 PNGs
- Update build script to auto-generate icons before build

App is now installable as a PWA with offline support.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

cannaiq/package.json

@@ -5,7 +5,8 @@
   "scripts": {
     "dev": "vite --host",
     "dev:admin": "vite --host --port 8080",
-    "build": "tsc && vite build",
+    "generate-icons": "node scripts/generate-icons.js",
+    "build": "node scripts/generate-icons.js && tsc && vite build",
     "preview": "vite preview"
   },
   "dependencies": {
@@ -26,6 +27,8 @@
     "postcss": "^8.4.32",
     "tailwindcss": "^3.4.1",
     "typescript": "^5.3.3",
-    "vite": "^5.0.8"
+    "vite": "^5.0.8",
+    "vite-plugin-pwa": "^0.21.1",
+    "sharp": "^0.33.5"
   }
 }

cannaiq/scripts/generate-icons.js

@@ -0,0 +1,37 @@
+/**
+ * Generate PWA icons from favicon.svg
+ *
+ * Run: node scripts/generate-icons.js
+ */
+
+import sharp from 'sharp';
+import { readFileSync, writeFileSync } from 'fs';
+import { join, dirname } from 'path';
+import { fileURLToPath } from 'url';
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const publicDir = join(__dirname, '..', 'public');
+
+const svgPath = join(publicDir, 'favicon.svg');
+const svg = readFileSync(svgPath);
+
+const sizes = [192, 512];
+
+async function generateIcons() {
+  console.log('Generating PWA icons from favicon.svg...');
+
+  for (const size of sizes) {
+    const outputPath = join(publicDir, `icon-${size}.png`);
+
+    await sharp(svg)
+      .resize(size, size)
+      .png()
+      .toFile(outputPath);
+
+    console.log(`  Created icon-${size}.png`);
+  }
+
+  console.log('Done!');
+}
+
+generateIcons().catch(console.error);

cannaiq/vite.config.ts

@@ -1,8 +1,61 @@
 import { defineConfig } from 'vite';
 import react from '@vitejs/plugin-react';
+import { VitePWA } from 'vite-plugin-pwa';
 
 export default defineConfig({
-  plugins: [react()],
+  plugins: [
+    react(),
+    VitePWA({
+      registerType: 'autoUpdate',
+      includeAssets: ['favicon.svg'],
+      manifest: {
+        name: 'CannaIQ',
+        short_name: 'CannaIQ',
+        description: 'Cannabis dispensary analytics and management',
+        theme_color: '#059669',
+        background_color: '#1f2937',
+        display: 'standalone',
+        scope: '/',
+        start_url: '/',
+        icons: [
+          {
+            src: '/icon-192.png',
+            sizes: '192x192',
+            type: 'image/png',
+          },
+          {
+            src: '/icon-512.png',
+            sizes: '512x512',
+            type: 'image/png',
+          },
+          {
+            src: '/icon-512.png',
+            sizes: '512x512',
+            type: 'image/png',
+            purpose: 'maskable',
+          },
+        ],
+      },
+      workbox: {
+        // Cache all assets
+        globPatterns: ['**/*.{js,css,html,ico,png,svg,woff,woff2}'],
+        // Runtime caching for API calls
+        runtimeCaching: [
+          {
+            urlPattern: /^https:\/\/cannaiq\.co\/api\/.*/i,
+            handler: 'NetworkFirst',
+            options: {
+              cacheName: 'api-cache',
+              expiration: {
+                maxEntries: 100,
+                maxAgeSeconds: 60 * 5, // 5 minutes
+              },
+            },
+          },
+        ],
+      },
+    }),
+  ],
   server: {
     host: true,
     port: 8080,