Increase barcode ID text size (8 → 14) for readability

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/lib/server/barcode.ts

@@ -8,7 +8,7 @@ export async function generateBarcodeSvg(text: string): Promise<string> {
 		scale: 3,
 		height: 8,
 		includetext: true,
-		textsize: 8,
+		textsize: 14,
 		textxalign: 'center'
 	});