chore: 初始化项目骨架结构

- 创建前端 Vue3 项目目录结构（components、views、router、stores 等）
- 创建后端 Go 项目目录结构（cmd、internal、pkg 等分层架构）
- 创建部署配置目录（docker、k8s）
- 创建文档目录
- 添加 .gitignore 忽略规则
- 添加 Makefile 构建脚本
- 更新 README.md 项目说明文档
- 每个目录添加 .gitkeep 文件说明目录用途

Makefile

@@ -0,0 +1,85 @@
+# XINFRA Makefile
+
+.PHONY: help build run test docker clean
+
+# 默认目标
+help:
+	@echo "XINFRA - 统一运维入口平台"
+	@echo ""
+	@echo "可用命令:"
+	@echo "  make help          - 显示此帮助信息"
+	@echo "  make build         - 构建前后端项目"
+	@echo "  make run           - 启动开发服务器"
+	@echo "  make test          - 运行测试"
+	@echo "  make docker        - 构建 Docker 镜像"
+	@echo "  make clean         - 清理构建产物"
+	@echo ""
+
+# 构建前后端项目
+build: build-frontend build-server
+
+build-frontend:
+	@echo "Building frontend..."
+	cd frontend && npm install && npm run build
+
+build-server:
+	@echo "Building server..."
+	cd server && go build -o bin/xinfra ./cmd/server
+
+# 启动开发服务器
+run: run-frontend run-server
+
+run-frontend:
+	@echo "Starting frontend dev server..."
+	cd frontend && npm run dev
+
+run-server:
+	@echo "Starting server..."
+	cd server && go run ./cmd/server
+
+# 运行测试
+test: test-frontend test-server
+
+test-frontend:
+	@echo "Running frontend tests..."
+	cd frontend && npm run test
+
+test-server:
+	@echo "Running server tests..."
+	cd server && go test ./...
+
+# 构建 Docker 镜像
+docker: docker-frontend docker-server
+
+docker-frontend:
+	@echo "Building frontend Docker image..."
+	docker build -t xinfra-frontend:latest -f deploy/docker/Dockerfile.frontend .
+
+docker-server:
+	@echo "Building server Docker image..."
+	docker build -t xinfra-server:latest -f deploy/docker/Dockerfile.server .
+
+# 清理构建产物
+clean:
+	@echo "Cleaning build artifacts..."
+	rm -rf frontend/dist frontend/node_modules
+	rm -rf server/bin server/vendor
+	find . -type d -name vendor -exec rm -rf {} + 2>/dev/null || true
+
+# 本地开发环境
+dev-up:
+	@echo "Starting local development environment..."
+	docker-compose up -d
+
+dev-down:
+	@echo "Stopping local development environment..."
+	docker-compose down
+
+# 数据库迁移
+migrate-up:
+	@echo "Running database migrations..."
+	cd server && go run ./cmd/server migrate up
+
+migrate-down:
+	@echo "Rolling back database migrations..."
+	cd server && go run ./cmd/server migrate down