feat: 文传易匿名临时文件传输站初始版本

- 后端 .NET 8 + FreeSql + 阿里云 OSS，支持共享/私密/标签三种文件模式
- 前端 Vue3 + Vite + TDesign，上传/取件/管理三页
- 取件码/二维码/海报合成（含保存二维码为图片）
- deploy/ 部署文档与一键 FTP 发布脚本
- appsettings.json 含真实凭据，已 gitignore 不入库

frontend/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "wenchuanyi-frontend",
+  "private": true,
+  "version": "1.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "axios": "^1.7.9",
+    "qrcode": "^1.5.4",
+    "tdesign-vue-next": "^1.10.5",
+    "vue": "^3.5.13",
+    "vue-router": "^4.5.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.2",
+    "@types/qrcode": "^1.5.5",
+    "@vitejs/plugin-vue": "^5.2.1",
+    "autoprefixer": "^10.4.20",
+    "postcss": "^8.4.49",
+    "tailwindcss": "^3.4.17",
+    "typescript": "^5.7.2",
+    "vite": "^5.4.11"
+  }
+}