feat: 初始化考培练系统项目

- 从服务器拉取完整代码
- 按框架规范整理项目结构
- 配置 Drone CI 测试环境部署
- 包含后端(FastAPI)、前端(Vue3)、管理端

技术栈: Vue3 + TypeScript + FastAPI + MySQL

frontend/public/manifest.json

@@ -0,0 +1,25 @@
+{
+  "name": "考培练 - 智能陪练系统",
+  "short_name": "考培练",
+  "description": "让学习更高效，让进步看得见",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#f5f7fa",
+  "theme_color": "#667eea",
+  "icons": [
+    {
+      "src": "/favicon.svg",
+      "sizes": "any",
+      "type": "image/svg+xml"
+    },
+    {
+      "src": "/favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    }
+  ],
+  "orientation": "portrait"
+}
+
+
+