refactor(vue): migrate app, routes, and tooling from Svelte

Replace the Svelte runtime, Vite plugin, Storybook adapter, and component files with Vue 3 equivalents while preserving the existing route table, page markup, styling, assets, deployment shape, and npm workflows.

Move shared and page-level state onto Vue refs, computed values, lifecycle hooks, and script setup components. Recreate the custom async router and translation composable as Vue-native modules so navigation and bilingual content continue to work without introducing a router or state-management dependency.

Adopt the maintained @lucide/vue package, remove the Svelte icon and map wrappers, and initialize MapLibre directly on the Helpdesk page. Replace the Svelte CSF story with a Vue Storybook story, remove obsolete aliases and generation/config files, and update the audited lockfile with no known vulnerabilities.

vite.config.js

@@ -1,22 +1,15 @@
 import { defineConfig } from 'vite'
-import { svelte } from '@sveltejs/vite-plugin-svelte'
+import vue from '@vitejs/plugin-vue'
 import tailwindcss from '@tailwindcss/vite';
 
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [
     tailwindcss(),
-    svelte()
+    vue()
   ],
   base: '/',
   server: {
     historyApiFallback: true,
-  },
-  resolve: {
-    alias: {
-      '@': '/src',
-      '$components': '/src/components',
-      '$lib': '/src/lib'
-    }
   }
 })