feat: Add PWA assets and metadata for iOS Safari installation

- Generate app icons in multiple sizes (192x192, 512x512, 180x180, 32x32)
- Create favicon and apple-touch-icon SVG files
- Add comprehensive PWA meta tags in app layout
- Configure theme color (#3B82F6) and background color
- Update manifest.json with icon references (PNG and SVG)
- Create icon generation scripts (SVG and PNG conversion)
- Add browser-based PNG icon generator (HTML)
- Create comprehensive PWA testing guide
- Add icon setup documentation

Requirements: 4.1, 4.2
Task: 13. Add PWA assets and metadata

package.json

@@ -8,7 +8,9 @@
     "start": "next start",
     "lint": "next lint",
     "db:push": "prisma db push",
-    "db:studio": "prisma studio"
+    "db:studio": "prisma studio",
+    "icons:generate": "node scripts/generate-icons.js",
+    "icons:info": "node scripts/svg-to-png.js"
   },
   "dependencies": {
     "@prisma/client": "^5.7.1",