feat: 添加认证、日志、响应等基础中间件与服务

internal/middleware/trace_id.go

@@ -0,0 +1,15 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+)
+
+func TraceID() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		requestID := uuid.New().String()
+		c.Set("trace_id", requestID)
+		c.Header("X-Trace-ID", requestID)
+		c.Next()
+	}
+}