feat: add make site-analyze target to enable webpack bundle analysis

Signed-off-by: megha1807 <meghakumarig5@gmail.com>

Author: megha1807

Makefile

@@ -57,3 +57,8 @@ features:
 	rm .github/build/spreadsheet.csv
 
 .PHONY: setup build site site-full clean site-fast lint features
+
+## Analyze webpack bundle with FCP optimization
+site-analyze:
+	@echo "🏗️  Building site with webpack bundle analyzer..."
+	ANALYZE_BUNDLE=true npm run build