feat: initialize Vue application with main components and styles

- Added App.vue as the main application component with a structured layout.
- Created main.js to bootstrap the Vue application and mount it to the DOM.
- Introduced styles.css for global styling, including responsive design and theming.
- Removed outdated HTML files (stats.html, towns.html) and Python script (statsprocess.py) as part of the migration to a new Vue-based architecture.
- Added Vite configuration (vite.config.js) for building the Vue application.

package.json

@@ -0,0 +1,19 @@
+{
+  "name": "bailuyuan-web",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview",
+    "update:stats": "python scripts/statsprocess.py"
+  },
+  "dependencies": {
+    "vue": "^3.5.13"
+  },
+  "devDependencies": {
+    "@vitejs/plugin-vue": "^5.2.1",
+    "vite": "^5.4.14"
+  }
+}