refactor: module federation

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

vite.config.ts

@@ -41,13 +41,16 @@ export default defineConfig({
     },
     rollupOptions: {
       external: [
-        'pinia',
         'vue',
         'vue-router',
-        // Externalize shared utilities from core to avoid duplication
-        /^@KTXC\/utils\//,
+        'pinia',
+        '@KTXC',
       ],
       output: {
+        paths: (id) => {
+          if (id === '@KTXC') return '/js/ktxc.mjs'
+          return id
+        },
         assetFileNames: (assetInfo) => {
           if (assetInfo.name?.endsWith('.css')) {
             return 'mail_manager-[hash].css'