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

svelte.config.js

@@ -10,7 +10,9 @@ const config = {
 		// adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list.
 		// If your environment is not supported or you settled on a specific environment, switch out the adapter.
 		// See https://kit.svelte.dev/docs/adapters for more information about adapters.
-		adapter: adapter(),
+		adapter: adapter({
+			precompress: true  // Enable brotli and gzip compression
+		}),
 		alias: {
 			$models: 'src/models',
 			$utils: 'src/utils'