perf: optimize bundle size and add build optimizations

- Move HTML stripping to server-side to remove cheerio from client bundle (247KB reduction)
- Add terser minification with console/debugger removal
- Enable manual code chunking for chart.js and auth libraries
- Convert TTF fonts to WOFF2 format (~900KB savings)
- Enable brotli/gzip precompression in adapter
- Update CSS to prefer WOFF2 with TTF fallback

src/lib/css/rosenkranz.css

@@ -3,14 +3,16 @@
   font-style: normal;
   font-weight: 400;
   font-display: swap;
-  src: url(/fonts/crosses.ttf);
+  src: url(/fonts/crosses.woff2) format('woff2'),
+       url(/fonts/crosses.ttf) format('truetype');
 }
  @font-face {
   font-family: 'LibertineMinimal';
   font-style: normal;
   font-weight: 400;
   font-display: swap;
-  src: url(/fonts/LinLibertine_minimal.ttf);
+  src: url(/fonts/LinLibertine_minimal.woff2) format('woff2'),
+       url(/fonts/LinLibertine_minimal.ttf) format('truetype');
  }
 .sbeads{
 	fill: var(--nord10);