Enable Vite file polling for Docker volume watch compatibility

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

vite.config.js

@@ -21,6 +21,10 @@ export default defineConfig({
         cors: {
             origin: ['https://esyweb.local']
         },
+        watch: {
+            usePolling: true,
+            interval: 1000,
+        },
     },
     resolve: {
         alias: {