chore: 初始化仓库基础文件

- 新增 Git 与 Docker 忽略规则

- 新增项目首页 README 并接入管理端 logo

.gitignore

@@ -0,0 +1,25 @@
+.DS_Store
+.idea/
+
+node_modules/
+dist/
+coverage/
+.env.local
+.env.*.local
+
+target/
+**/target/
+
+frontend_admin/node_modules/
+frontend_admin/dist/
+frontend_admin/dist.zip
+frontend_admin/vite.config.js
+frontend_admin/vite.config.d.ts
+frontend_miniprogram/node_modules/
+frontend_miniprogram/project.private.config.json
+
+*.log
+deploy/data/*
+!deploy/data/.gitkeep
+deploy/release/*.zip
+docker/