feat: 添加微服务模板基础架构

- 创建基于 CloudWego Hertz 的 Go 微服务脚手架
- 集成 Nacos 服务注册/发现功能
- 添加 gRPC 客户端支持
- 实现环境变量配置管理 (.env.example)
- 添加 HTTP 中间件 (Recovery, AccessLog, CORS)
- 配置 Gitea CI/CD 构建部署流程

BREAKING CHANGE: 项目结构调整，从简单的 API 服务升级为完整的微服务架构

middleware/access_log.go

@@ -0,0 +1,27 @@
+package middleware
+
+import (
+	"apiServer_service/utils/logger"
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/cloudwego/hertz/pkg/app"
+)
+
+func AccessLog() app.HandlerFunc {
+	return func(ctx context.Context, c *app.RequestContext) {
+		start := time.Now()
+		c.Next(ctx)
+		latency := time.Since(start)
+
+		logger.Info("HTTP",
+			fmt.Sprintf("%s %s %d %s",
+				string(c.Method()),
+				string(c.Request.URI().Path()),
+				c.Response.StatusCode(),
+				latency,
+			),
+		)
+	}
+}

middleware/cors.go

@@ -0,0 +1,23 @@
+package middleware
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/cloudwego/hertz/pkg/app"
+)
+
+func CORS() app.HandlerFunc {
+	return func(ctx context.Context, c *app.RequestContext) {
+		c.Header("Access-Control-Allow-Origin", "*")
+		c.Header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
+		c.Header("Access-Control-Allow-Headers", "Origin, Content-Type, Authorization")
+		c.Header("Access-Control-Max-Age", "86400")
+
+		if string(c.Method()) == http.MethodOptions {
+			c.AbortWithStatus(http.StatusNoContent)
+			return
+		}
+		c.Next(ctx)
+	}
+}

middleware/recovery.go

@@ -0,0 +1,24 @@
+package middleware
+
+import (
+	"apiServer_service/utils/logger"
+	"apiServer_service/utils/request"
+	"context"
+	"fmt"
+	"runtime/debug"
+
+	"github.com/cloudwego/hertz/pkg/app"
+)
+
+func Recovery() app.HandlerFunc {
+	return func(ctx context.Context, c *app.RequestContext) {
+		defer func() {
+			if r := recover(); r != nil {
+				logger.Error("Panic Recovery", fmt.Sprintf("%v\n%s", r, debug.Stack()))
+				request.Error(c, 500, "Internal Server Error")
+				c.Abort()
+			}
+		}()
+		c.Next(ctx)
+	}
+}