Add debug print for site base

vite.config.ts

@@ -3,9 +3,13 @@ import react from "@vitejs/plugin-react";
 import path from "path";
 import { defineConfig } from "vite";
 
+const base = process.env.SITE_BASE || "/";
+
+console.info(`Site base = ${base}`);
+
 // https://vite.dev/config/
 export default defineConfig({
-  base: process.env.SITE_BASE || "/",
+  base,
   plugins: [react(), tailwindcss()],
   resolve: {
     alias: {